Ssdac Dacf-710p Manual
Ssdac Dacf-710p Manual
Ssdac Dacf-710p Manual
Railway Testing
Prepared By : System Production Division
Central Electronics Limited
Abstract:
This document defines the installation & maintenance procedure for Single Section Digital Axle
Counter.
i
MESSAGE FROM OUR CMD
We are privileged for your decision to choose SSDAC for modernization of signalling
in the Railways. The SSDAC comes to you backed by the trusted CEL brand and is part
of the Microprocessor and Software based Signalling Systems for Track Circuiting and
Block Working application.
We would want you to get acquainted with the details in the installation manual,
which will enable you to derive the best performance from your SSDAC. We look
forward to having you as a satisfied customer and hope to have you retain us, as your
first choice for any of your signalling needs.
Yours Sincerely
ii
KNOW YOUR SSDAC
1. SSDAC:
The SSDAC is supplied as one pair (two units) named as Entry and Exit units for
monitoring single section. SSDAC with vital relay box and SM’s reset Box is shown below
Contd
iii
3. System Design
Designed as per CENELEC, SIL-4 (European standard)
21 KHz & 23 KHz high frequency ‘Phase Reversal’ type axle detectors
Micro controller based design with 2 out of 2 decision
V 21 modem communication on ½ quad cable
Compatible to work on voice channel of OFC & Radio
Opto isolated relay drive for Q type 24V, 1000 ohm.
MTBF is greater than 20 years.
4. Application:
The system can be widely used in Railways for
Block Working
Intermediate block signaling
Auto signalling
Track circuiting for
i) Loop line ii) Main line iii) yard lines
iv
For your kind attention
The Single Section Digital Axle Counter (SSDAC) is supplied with Phase reversal type Axle detectors. The
system model nos. is as follows:
Undetected Detected
4. Surge Voltage Protection device SV-121 has been provided with additional protection module for
modem line for reset box.
v.
Please Note : -
Kindly verify the version number of each card before its use and while ordering for spares
in existing system. Based on the version number , feature may vary so you are requested
to contact CEL for suitable guidance.
For Modifying SSDAC version DACF-700A or DAC700AP to current model DACF-710A/P
the following are required.
1. Replacement of Motherboard, MLB cards, Modem Card (AGC and above only).
2. Replacement of reset Box model - RB258 to model – RB259
3. Replacement of Surge Voltage Protection Device model from SV120 to SV121.
4. Additional pair of quad for displaying of packets information from location box to SM’s Room.
If all of the above modifications are carried out in each system, the features specified as
per RDSO/SPN/177/2005 of DACF-710A/P will be available.
For Modifying Amplitude Model SSDAC to Phase Reversal Type SSDAC, the following are
required
vi
ISSUE DETAILS:
VII
WARRANTY
2. The defective card / unit must be delivered at the user's cost to service
centre in CEL.
3. The guarantee is not valid for the damages resulting from accidents,
mishandling, negligence, unauthorised repairs, tampering, loss of
components / accessories, exposure to extensive heat and temperature,
damped due to rain or any other chemical such as acid etc.
viii
OUR COMMITMENT
For more than 22 years CEL has harnessed the power of intellectual signalling
From the year 2000 CEL started working on innovative products based on
Digital Axle Counter conforming to CENELEC SIL-4 standard for track circuiting
CEL has highly motivated professionals and specialists trained on the above
IX
IMPORTANT
Before Use
1. Please read all the instructions described in this manual carefully for proper installation of
SSDAC
2. After making connections to TX & Rx coils, check the presence of Rx coil signals, which
gives pulse output by means of LED glow on SCC1 & SCC2 cards. If not reverse the
connection of Rx coil cable.
3. The system has been provided with preparatory reset feature. In case of failure the reset
is to be applied by SM and the system comes to preparatory state. One train is to be
piloted in the section for system to become clear. Procedure for piloting should be
followed as per Station Working Rule in railways.
4. SSDAC and Reset Box are provided with sealing arrangement. The SSDAC top and back
covers are to be sealed. Reset Box in SM's Room is also to be sealed with metal seal. This
is to be done before commissioning at site.
For Best Performance
1. Provide battery and battery charger exclusively for this system. Do not add any other load
on this battery.
2. Maintain battery to provide steady 24V to the system. Check that no interruption takes
place on power supply.
3. Make sure to Switch off 24 V Power Supply to SSDAC before removing or reinserting the
card (spare) into the system.
4. Make sure that the system is connected to earth (1 Ohms) for protecting from lightning at
all locations of SSDAC.
5. Only twisted quad pair shall be used between two units for modem connection.
6. While resetting, Reset key and button shall not be pressed for more than 10 seconds. Ideal
time is 3 to 8 seconds
x
FOREWORD
Congratulations for your decision to purchase single section digital axle counter for
line / section verification to control and drive signals in Railways.
We assure you that the SSDAC opens new era of signalling system for providing track
circuiting and block working in Railways.
The contents of this manual have been divided into 18 chapters. The Installation
procedure, interconnections, measurements, commissioning, maintenance and
monitoring of system are described. The functions of SSDAC have been clearly
defined for better understanding and correct installation of system.
Author
Xi
CONTENTS
KNOW YOUR SSDAC
ISSUE DETAILS
FOREWORD .................................................................................................................................................... 3
CHAPTER 1 ...................................................................................................................................................... 1
1.0 GENERAL INFORMATION 1
1.1 INTRODUCTION .............................................................................................................................................................. 1
1.2 MODELS OF SYSTEM ..................................................................................................................................................... 1
1.3 BRIEF OF SYSTEM .......................................................................................................................................................... 1
1.4 SPECIFICATIONS ............................................................................................................................................................ 2
1.5 SYSTEM DESIGN ............................................................................................................................................................ 2
1.6 SYSTEM FEATURES ....................................................................................................................................................... 2
1.7 PRINCIPLE OF OPERATION ........................................................................................................................................... 3
1.8 PHYSICAL DESCRIPTION ............................................................................................................................................... 4
1.9 CONSTRUCTION DETAILS ............................................................................................................................................. 4
1.10 TYPICAL APPLICATION .................................................................................................................................................. 5
1.11 ADVANTAGES OVER OTHER TRACK MONITORING SYSTEMS.................................................................................. 5
CHAPTER 2 ...................................................................................................................................................... 6
2.0 SYSTEM DETAILS 6
2.1 INTRODUCTION .............................................................................................................................................................. 6
2.2 APPLICATION .................................................................................................................................................................. 6
2.3 FUNCTIONS PERFORMED BY SSDAC .......................................................................................................................... 6
2.4 BRIEF DESCRIPTION OF CARDS.................................................................................................................................. 7
CHAPTER 3 .................................................................................................................................................... 11
3.0 SYSTEM DESCRIPTION 11
3.1 INTRODUCTION ............................................................................................................................................................ 11
3.2 SIGNAL CONDITIONING CARD (Card 1&2) .................................................................................................................. 11
3.3 MICRO CONTROLLER LOGIC BLOCK CARD (Card 3 & 4) .......................................................................................... 12
3.4 MODEM CARD: (Card 6) ................................................................................................................................................ 12
3.5 RELAY DRIVER CARD (Card 7) .................................................................................................................................... 12
3.6 DC-DC CONVERTOR (Card 8) ...................................................................................................................................... 13
3.7 EVENT LOGGER CARD (CARD 5) ..................................................................................................................................... 13
CHAPTER 4 .................................................................................................................................................... 14
4.0 INSTALLATION PROCEDURE 14
4.1 COMPONENTS OF SSDAC ........................................................................................................................................... 14
4.2 SUPPORTIVE COMPONENTS ...................................................................................................................................... 14
4.3 INSTALLATION OF LOCATION BOX ............................................................................................................................. 17
4.4 SSDAC COUNTING UNIT .............................................................................................................................................. 18
4.5 VITAL RELAY ................................................................................................................................................................. 18
4.6 POWER SUPPLY ARRANGEMENT............................................................................................................................... 18
4.7 BATTERIES .................................................................................................................................................................... 18
4.8 BATTERY CHARGER..................................................................................................................................................... 18
4.9 INTEGRATED POWER SUPPLY ................................................................................................................................... 19
4.10 CABLE ............................................................................................................................................................................ 19
CHAPTER 5 .................................................................................................................................................... 20
5.0 INSTALLATION AND SETTING UP SSDAC 20
5.1 INTRODUCTION ............................................................................................................................................................ 20
5.2 ADDRESSING SCHEME ................................................................................................................................................ 20
5.3 TRAIN DIRECTION & COUNTING METHOD ................................................................................................................. 22
5.4 SWITCH SETTINGS IN MODEM CARD ........................................................................................................................ 23
5.5 SIGNAL CONDITIONER CARD (SCC Card) .................................................................................................................. 23
5.6 RELAY DRIVER .............................................................................................................................................................. 23
5.7 DC-DC CONVERTER ..................................................................................................................................................... 24
CHAPTER 6 .................................................................................................................................................... 25
6.0 SYSTEM INTER CONNECTION DETAILS 25
6.1 INTRODUCTION ............................................................................................................................................................ 25
6.2 TX COIL AXLE DETECTOR (MS-1) ............................................................................................................................... 25
6.3 Rx COIL AXLE DETECTORS (MS-2) ............................................................................................................................. 25
6.4. MODEM COUPLER (MS-4) ............................................................................................................................................... 26
6.5 RELAY DRIVE (MS-3) .................................................................................................................................................... 26
6.6 MONITOR PORT (MS - 5) .............................................................................................................................................. 27
6.7 POWER SUPPLY 24V (MS - 6) ...................................................................................................................................... 27
6.8 VITAL RELAY BOX (MS - 7) ........................................................................................................................................... 28
6.9 RELAY CONTACT DETAILS (MS-8) .............................................................................................................................. 28
CHAPTER 7 .................................................................................................................................................... 29
7.0 MEASUREMENT OF SIGNAL LEVELS 29
CHAPTER 8 .................................................................................................................................................... 31
8.0 COMMUNICATION PROTOCOL 31
8.1 INTRODUCTION ............................................................................................................................................................ 31
8.2 POWER ON AND RESET PACKETS ‘J’ AND ‘R’ ........................................................................................................... 31
8.3 COUNT CHANGE PACKET ‘C’ ...................................................................................................................................... 31
8.4 COUNT UPDATE PACKET ‘U’ ....................................................................................................................................... 31
CHAPTER 9 .................................................................................................................................................... 33
9.0 SYSTEM SOFTWARE 33
9.1 INTRODUCTION ............................................................................................................................................................ 33
9.2 COUNTING OF WHEELS AND COMPUTATION OF DIRECTION ................................................................................ 34
9.3 FUNCTIONAL STATES OF SSDAC ............................................................................................................................... 34
CHAPTER 10 .................................................................................................................................................. 36
10.0 LED INDICATIONS 36
10.1 INTRODUCTION ............................................................................................................................................................ 36
10.2 SCC CARDS (Card 1 & 2) .............................................................................................................................................. 37
10.3 MLB CARDS (CARD 3 & 4) ............................................................................................................................................ 37
10.4 MODEM CARD (CARD 6)............................................................................................................................................... 38
10.5 RELAY DRIVER CARD (CARD 7) .................................................................................................................................. 39
10.6 DC-DC CONVERTER (CARD 8) .................................................................................................................................... 39
10.7 EVENT LOGGER CARD (Card 5) .................................................................................................................................. 39
10.8 SYSTEM ERROR CODES.............................................................................................................................................. 40
10.9 DIAGNOSTICS CHART .................................................................................................................................................. 51
CHAPTER 11 .................................................................................................................................................. 55
11.0 EARTHING 55
11.1 EARTHING OF SSDAC .................................................................................................................................................. 55
11.2 TREATMENT OF SOIL ................................................................................................................................................... 55
11.3 EARTH LEAD WIRES............................................................................................................................................................ 55
11.4 LIMITS OF EARTH RESISTANCE ................................................................................................................................. 55
11.5 EQUIPMENT TO BE EARTHED ..................................................................................................................................... 56
11.6 PRECAUTIONS TO BE TAKEN DURING EARTHING ................................................................................................... 56
11.7 MAINTENANCE AND TESTING OF EARTHS ............................................................................................................... 57
CHAPTER 12 .................................................................................................................................................. 58
12.0 SURGE VOLTAGE AND LIGHTNING PROTECTION 58
12.1 INTRODCUTION ............................................................................................................................................................ 58
12.2 CAUSES OF SURGE VOLTAGE IN POWER AND DATA LINES .................................................................................. 58
12.3 PROTECTION OF SSDAC FROM SURGE VOLTAGES ................................................................................................ 58
12.4 WIRING DETAILS OF SURGE VOLTAGE DEVICE ....................................................................................................... 59
CHAPTER 13 .................................................................................................................................................. 60
13.0 SM's RESET BOX 60
13.1. FEATURES OF RESET BOX ......................................................................................................................................... 60
13.2. WORKING OF RESET BOX ........................................................................................................................................... 61
13.3. INSTALLATION OF RESET BOX ................................................................................................................................... 64
13.4 RESETTING PROCEDURE ............................................................................................................................................ 65
CHAPTER 14 .................................................................................................................................................. 67
14.0 COMMISSIONING OF SYSTEM 67
14.1 PRECOMMISSIONING CHECK OF THE SYSTEM ....................................................................................................... 67
14.2 RESET BOX RB – 259.................................................................................................................................................... 67
14.3 SURGE VOLTAGE PROTECTION DEVICE SV-121 ...................................................................................................... 67
14.4 COMMISSIONING INTO SIGNALLING CIRCUITS ........................................................................................................ 67
CHAPTER 15 .................................................................................................................................................. 68
15.0 MAINTENANCE SCHEDULE (MONTHLY) 68
15.1 TX & RX COIL AXLE DETECTORS (At site) .................................................................................................................. 68
15.2 SSDAC UNIT (At site) ..................................................................................................................................................... 68
15.3 POWER SUPPLY (Battery Room & Site)........................................................................................................................ 68
15.4 INSPECTION OF RESET BOX (SM’s room) .................................................................................................................. 69
15.5 GENERAL ....................................................................................................................................................................... 69
15.6 REPAIR OF FAULTY CARDS ........................................................................................................................................ 69
CHAPTER 16 .................................................................................................................................................. 70
16.0 TOOLS AND SPARES 70
16.1 TOOL KIT:....................................................................................................................................................................... 70
16.2 RECOMMENDED SPARES: ........................................................................................................................................... 71
CHAPTER 17 .................................................................................................................................................. 72
17.0 DO’S AND DON’TS FOR DIGITAL AXLE COUNTER 72
17.1 DO’S ............................................................................................................................................................................... 72
17.2 Don’ts .............................................................................................................................................................................. 72
CHAPTER 18 .................................................................................................................................................. 73
18.0 INTRODUCTION (EVENT LOGGER) 73
18.1 SOFTWARE INSTALLATION ......................................................................................................................................... 73
18.2 INSTALLATION INSTRUCTIONS: .................................................................................................................................. 75
18.3 DATA ANALYZER SOFTWARE: .................................................................................................................................... 75
18.4 DOWNLOADING OF DATA: ........................................................................................................................................... 76
18.5 DATA ANALYSIS: ............................................................................................................................................................ 79
CHAPTER 1
1.1 INTRODUCTION
Axle Counter is train detection equipment for use in Railways for monitoring a defined track
section to provide occupancy / clear status. The System detects the presence of a train in any
specified track section. The track section can be platform lines, yard lines, block section
between two stations.
The axle counters have been designed first with transistorized circuits and after that the
systems were made using ICs. Now CEL and RDSO have made an effort to design and develop
a Single Section Digital Axle Counter (SSDAC) using Micro Controller and software program.
The communication used in the system is by means of packets for exchange of information
between units. The communication is in duplex mode and is fail-safe. The Digital Axle Counter
model received by you is DACF-710P for monitoring single section.
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INSTALLATION MANUAL DACF-710P
section for system to become clear. This removes the dangers associated with system
becoming clear on direct traditional reset.
1.4 SPECIFICATIONS
The System has been designed to the RDSO Specification No: RDSO/SPN/177/2012.
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INSTALLATION MANUAL DACF-710P
iii. 4-spokes / 8-spokes push trolley wheel with wheel flange less than 22 mm and wheel base
less than 100 mm has no effect on the system (system remains NORMAL).The push trolleys
recommended for use with SSDAC is given in Drawing No – P008697 Page D34
iv. Compatible with 90R, 52 Kg & 60 Kg rail profiles
v. Easy to install, commission and maintain.
vi. Vital Relay output at both ends of the system.
The SSDAC model No – DACF-710 A/P supports the resetting of axle counter only on one
outcount. In this case the system will not accepts any resetting operation till outcount is
registered. The current model also supports the display of Error and Counts on the Reset
Box. For displaying the information one additional pair of quad cable is required from
location to station master’s reset panel.
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INSTALLATION MANUAL DACF-710P
The SSDAC Unit monitors these wheel pulses A & B to detect the direction of movement of
train. It registers the counts of the number of wheels passing over the location and keeps the
total count. The first unit sends its count to the second unit located at the other end of the
track section at regular intervals. Similarly the first unit receives the count status from the
second unit of the system. Each unit of the system compares the self-count with the remote
count received from the other unit and evaluates the section status. The various supervisory
signals are also monitored and checked in the SSDAC unit. Each SSDAC unit of the system
drives its Vital Relay to energized condition (Pick up) at their location after verification of the
following:
i. The self-count and remote counts are matched and equal.
ii. The supervisory signals are normal at both locations.
The track section is shown as CLEAR when the Vital Relay is picked up. Otherwise the track
section is shown as OCCUPIED. The Vital Relay contacts can be used by the Railways at both
ends or at any one end as per requirement.
PCBs. Drawing no I008442A4 (Page No. D10) shows the rear view of the system.
The cards must be inserted in the order of card 1 to 8 from left to right in the sub rack. The
various dimensions of the system are as follows.
• Width: 300.0 mm. (42 T)
• Height: 133.0 mm (3 U)
• Depth: 300.0 mm
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INSTALLATION MANUAL DACF-710P
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INSTALLATION MANUAL DACF-710P
CHAPTER 2
2.1 INTRODUCTION
The system comprises of trackside SSDAC units, which are installed near the detection points
of the railway track. The system implements the total function of Counting of train wheels and
its evaluation at both detection points. This includes
i. Phase reversal type TX and Rx coil Axle detectors.
ii. Generation of carrier signal.
iii. Demodulation of received signal.
iv. Pulse Shaping and Validation.
v. Pulse Counting.
vi. Transmission and Reception of Counts between two units of SSDAC.
vii. Output for Vital Relay.
viii. Read Back of Vital Relay
2.2 APPLICATION
The SSDAC - 2D can be used for track circuiting in loop lines, block sections etc.
The SSDAC operates in Independent Mode without central evaluator. In this mode 2 numbers
of SSDAC Units are used. The 1st unit of SSDAC transmits its wheel count to 2nd unit of SSDAC
and also receives the wheel count from 2nd unit of SSDAC. Based on its internally counted
wheel and the wheel count received from second unit of SSDAC, the SSDAC computes the
status of the corresponding track section and outputs the same to the relay port. The
communication between SSDAC’s is through a 2 Wire internal modem.
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INSTALLATION MANUAL DACF-710P
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INSTALLATION MANUAL DACF-710P
Micro Controller agrees on count status and health, the Vital Relay is driven to pick up
otherwise it remains dropped. Each unit of SSDAC consists of following modules.
These modules implement the functions described in section 2.1.
i. Signal Conditioner Cards (Card 1 & 2)
a Carrier Signal Generation
b Demodulation and Pulse generation.
ii. Micro controller logic blocks (2 micro controllers) (Card 3&4)
a. Pulse counting.
b. 2 out of 2 decision
c. Vital Relay Command Read back
d. Preparatory Relay Drive Command
iii. Event Logger Card (for monitoring failures, etc) (Card 5)
a. For storage of events in the system.
iv. Modem Card (Card 6)
a. Serial I/O Multiplexer
b. Resetting Circuit
v. Relay Driver Card (Card 7)
a. Output drive for vital relay & PR Relay
vi. Power Supply Module (DC-DC converter) (Card 8)
a. All the supply voltages required in SSDAC are generated
All the above cards are of extended single Euro size (220mm x 100mm), which plugs into
a motherboard in the sub rack. The cards must be inserted from card 1 to 8 starting from
left within the sub rack.
2.4.1 SIGNAL CONDITIONER CARD (SCC) (Card 1 & 2)
2.4.1.1 Carrier Signal Generation
Each card generates the carrier signals, which is transmitted, to its transmitter coil
mounted on each detection point.
SCC1 (21 KHz) to TX Coil A.
SCC2 (23 KHz) to TX Coil B.
Each card demodulates its receiver signal from Rx coil A & B to generate pulses
corresponding to wheels passing over the detection point. These pulses are then
validated and fed to Micro Controller Logic Cards.
Rx Coil A to SCC1 (21 KHz).
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INSTALLATION MANUAL DACF-710P
Vital relay read back feature is included in the Micro controller card to read back the vital
relay in occupied as well as in the clear state and checks as per the decision given from the
card.
V.21 Modem is used for communication between two units of SSDAC. The digital packets
generated by MLB cards are sent to remote unit on a pair of cable. Serial I/O Multiplexer is
used to select the micro controller card that will communicate with the modem on the remote
unit.
The SSDAC reset circuit is included in the modem card wherein the reset voltage window (36V
to 52V) and reset timing window (between 2 secs to 10 secs) functions has been provided. The
reset command will not respond for the cases outside these windows.
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INSTALLATION MANUAL DACF-710P
purpose of analyzing the events occurring during the operations of the SSDAC. The data can
be analyzed with the help of CEL Data analyzer software.
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INSTALLATION MANUAL DACF-710P
CHAPTER 3
3.1 INTRODUCTION
The SSDAC Counting Unit comprises of the following cards.
i. Signal Conditioning Card Card 1 & 2 2 Nos.
ii. Micro Controller Logic Card 3 & 4 2 Nos.
iii. Event Logger Card 5 1 No.
iv. Modem Card 6 1 No.
v. Relay Driver Card 7 1 No
vi. DC-DC converter Card 8 1 No.
----------
Total: 8 Nos.
-----------
The card details are described in following sections.
Power Supply to unit shall be switched OFF before removing Tx/Rx coils from Rail web. No
metal parts / metal sheets / metal foils shall be placed near Tx/Rx coils.
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INSTALLATION MANUAL DACF-710P
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INSTALLATION MANUAL DACF-710P
Euro Connector. The card directly plugs into the motherboard of SSDAC. One RD card is used
in each SSDAC counting unit. The Relay Driver card receives the command of clear and clock
signals from MLB1 & MLB2 cards and drives the vital relay to energized condition (Pick up)
when section is clear. If a train occupies the section, the vital relay is dropped. The command
signals and vital relay Pick up is indicated on the card. The preparatory reset output after
system becomes normal after reset is driven from this card.
The main functions of the card are:
i. Dual Clock Checking circuits
ii. Opto isolator Circuit.
iii. Vital Relay Drive Output.
iv. Preparatory Reset (PR) Relay drive output.
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INSTALLATION MANUAL DACF-710P
CHAPTER 4
Quantity
S.No.
Station Area(1 Block Section Block Section
Supportive equipment and accessories No. SSDAC) (S/L) (D/L)
1 No. of SSDAC (2 No. of SSDAC)
1. 24V, 40 AH low maintenance battery or 24V, 1 No. 2 Nos. 2 Nos.
5 Amp output from one module of IPS
2. 24V, 5A Axle counter type Battery Charger 1 No. 2 Nos. 2 Nos.
3. 4/6 Quad cable 0.9 mm 0.9 mm 2 Nos.
For SSDAC (Station to Station) (1 Pair) (1 Pair) (2 Pair)
For reset box (From Location to SM’s Room) (1 Pair) (1 Pair) (2 Pair)
4. Apparatus case (Full) with termination board 2 Nos. 2 Nos. 4 Nos.
5. 25 sq mm ‘AL’ Power Cable, 2 core. Length as Length as Length as
required required required
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INSTALLATION MANUAL DACF-710P
ii. The marking for 3 holes with punch is to be made on the Web of rail using marking jig (Drg
No. F008300 on page D29 & D29a).
iii. The marking for 3 holes is given at a distance of 0 - 170 - 340mm.
iv. For 90 R or 90Lb, 52 Kg & 60Kg mark is 86mm from top.
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INSTALLATION MANUAL DACF-710P
v. The drilling is to be carried out on the web of rail at marked places by using drill machine/
ratchet drill method. 3 Nos. of holes of 14 mm dia are made on the web as per the
markings.
vi. The burr is to be removed from the holes after drilling is over.
IMPORTANT: The marking and drilling of holes on the web to the dimensions given are very
important for proper working of the system.
i. The Axle detectors are to be fixed on web of the rail at the drilled holes by means
of M12 bolts & nuts with spring washers and check nuts. (NOTE: the torque
wrench, specified in the checklist, should be used for tightening of nuts and bolts.)
ii. M12 x 100mm - 3 Nos. bolts & nuts are used for fixing the axle detectors. 2nd nut is
with Nylon washer and is to be used on each bolt.
iii. Transmitter coil assembly (21 KHz & 23 KHz) should be fixed on the outer side of
rail. The transmitter assembly should sit properly on the web of rail.
iv. Receiver coil assembly (21 KHz & 23 KHz) should be fixed on the inner side of rail.
The receiver assembly should be placed properly on the web of rail.
v. It should be ensured that transmitter coil assembly and receiver coil assembly are
facing opposite to each other (21 KHz TX to 21 KHz Rx and 23 KHz TX to 23 KHz Rx)
on either side of rail with centre line of coils matching each other.
vi. The TX coil cables 21 KHz & 23 KHz are taken together in one HDPE pipe to the
location Box. Similarly both 21 KHz & 23 KHz Rx coils are taken together but
separately from TX coil cables to the location box.
vii. The 1st set of Transmitter and Receiver Coils is made of 21 KHz signal and 2nd set is
made of 23 KHz signal at each Location.
Very Important
viii. Both at the Entry & Exit of the section, the axle detectors should be fixed on same
rail i.e. either on left side or on right side rail of the track. This should not be
installed with 1st set on left rail and 2nd set on right rail of the track at Entry & Exit
of the section. The Drawing no I008072A4 (Page No. D28) is to be followed for correct
installation of axle detector.
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INSTALLATION MANUAL DACF-710P
Note: If it is installed on alternate rails of the track, the counting will not match and the
system will not function normally for train movement.
i. To protect axle detectors against the damage from hanging parts of train, rail
deflector plates (protectors) should be mounted on both sides of the axle detectors.
These should be installed in the sleeper space (approx 30 cm to 40 cm next to the
axle detectors). The deflector clamps are first fixed to bottom of rail. These deflector
plates are fitted to deflector clamp with bolts and nuts on each side.
ii. While fixing deflector plates, it should be ensured that the deflector plates are positioned in
front of transmitter and receiver coil.
i. The location box should be installed as close as possible to detection point so that the
length of Axle detector cable should not exceed 10m.
ii. The location box foundation should be cast at rail level and as per scheduled dimensions of
Railways. (Standard practice in railways).
iii. One Shelf should be provided in the location box for keeping SSDAC Counting Unit & Vital
Relay Box.
iv. The VR box consists of Dual relay i.e. VR & PR relay of Q Type, 24V and 1000Ω type hence
no external relay is required in the location box. The available contacts from the relay can
be extended to the station for the external circuits for PR & VR. Refer Drawing no
S008429A3 (page no D18 & D19)
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INSTALLATION MANUAL DACF-710P
integrated Power Supply (IPS) of 24V, 5 A is used, its ripple content should be within limits.
The same 24V Battery can be used for advance and home location of UP & DN SSDAC units of
double line block section.
This power supply should not be used for any other signaling gear/systems.
4.7 BATTERIES
The 24V, 40 AH low Maintenance Battery (12 VX 2Nos.) or 24V; 40AH Battery Bank may be
used for powering the two units of SSDAC. The batteries are to be procured as per latest RDSO
specifications.
i. The batteries are kept on teak wood/ hard wood shelf on MS angles and are to be
installed in the battery room.
ii. Insulators are to be provided below the batteries.
iii. The charging of batteries has to be done as per manufacturer’s manual.
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INSTALLATION MANUAL DACF-710P
ii. The 24V, 5A battery charger has to be installed and connected to battery on auto mode.
The current consumption of each SSDAC unit is 1.0A @ 24V. For complete system (2
SSDAC units) it is 2.0A @ 24V.
4.10 CABLE
The connecting cable from Battery / IPS to SSDAC units at the site should be as given below:
i. 2 core, 25 sq. mm aluminium power cable.
ii. 12+4 spare conductors (double line) or 6+4 spare conductors (single line) of 1.5 sq. mm
signalling cable
iii. 4/6 Quad cable (1 Quad for double line or ½ quad for single line for station to station
communication and 1 Quad for location to SM’s Room for reset display)
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INSTALLATION MANUAL DACF-710P
CHAPTER 5
5.1 INTRODUCTION
This chapter provides necessary information for installation of SSDAC. This includes addressing
scheme, and it’s setting through 8-way dip switch, modem setting, etc.
2D system for Single Section (Refer Drawing no B007743A4, Page No. D1)
The 2D system is designed by means of one pair i.e. 2 SSDAC units. The units are manufactured
as Entry and Exit end units for single section. The Entry unit is to be installed at the beginning
of a section i.e. Adv. starter and the Exit unit is to be installed at the end of a section i.e. Home
of a block section. The units are connected to Axle detectors, vital relay, Reset Box and other
wiring as per the wiring diagram Drawing no L008453A4, Page No. D2 & D3
The SSDAC units are provided with unique address schemes for selection of 15 different pairs
of units by means of 8-way dip switch on motherboard. We have selected the first pair in
factory and units are supplied. However, for providing different pairs of units in station area/
Block section, the address scheme is given in Table 5.1. The user can also monitor the address
of SSDAC units using monitor port (as explained in Chapter 17)
Caution: The SSDAC units installed for a single section should not be either both Entry type
or units installed should not be both Exit type for 2 D section. This may result in continuous
configuration Error in the system. The Entry and Exit unit markings have been printed on the
units for easy identification of the system. For avoiding wrong installation it is advised that
the same serial no units should be installed for one section.
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INSTALLATION MANUAL DACF-710P
The 8 way switch can be viewed on to the mother board after opening back cover.
Example for selecting a different pair of units (pair no 5) and its switch position is given in
the table below:
Pair 5: Unit 1: 0A (Entry) Unit 2: 0B (Exit)
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INSTALLATION MANUAL DACF-710P
The address setting for all the 15 pairs is shown in the table below
Table 5.1
8-way Switch Position Mode Address Setting
8 7 6 5 4 3 2 1
ON ON ON ON ON ON OFF ON ENTRY 02 PAIR 1
ON ON ON ON ON ON OFF OFF EXIT 03 (factory selected)
ON ON ON ON ON OFF ON ON ENTRY 04
PAIR 2
ON ON ON ON ON OFF ON OFF EXIT 05
ON ON ON ON ON OFF OFF ON ENTRY 06 PAIR 3
ON ON ON ON ON OFF OFF OFF EXIT 07
ON ON ON ON OFF ON ON ON ENTRY 08 PAIR 4
ON ON ON ON OFF ON ON OFF EXIT 09
ON ON ON ON OFF ON OFF ON ENTRY 0A PAIR 5
ON ON ON ON OFF ON OFF OFF EXIT 0B (example shown above)
ON ON ON ON OFF OFF ON ON ENTRY 0C PAIR 6
ON ON ON ON OFF OFF ON OFF EXIT 0D
ON ON ON ON OFF OFF OFF ON ENTRY 0E PAIR 7
ON ON ON ON OFF OFF OFF OFF EXIT 0F
ON ON ON OFF ON ON ON ON ENTRY 10 PAIR 8
ON ON ON OFF ON ON ON OFF EXIT 11
ON ON ON OFF ON ON OFF ON ENTRY 12 PAIR 9
ON ON ON OFF ON ON OFF OFF EXIT 13
ON ON ON OFF ON OFF ON ON ENTRY 14 PAIR 10
ON ON ON OFF ON OFF ON OFF EXIT 15
ON ON ON OFF ON OFF OFF ON ENTRY 16 PAIR 11
ON ON ON OFF ON OFF OFF OFF EXIT 17
ON ON ON OFF OFF ON ON ON ENTRY 18 PAIR 12
ON ON ON OFF OFF ON ON OFF EXIT 19
ON ON ON OFF OFF ON OFF ON ENTRY 1A PAIR 13
ON ON ON OFF OFF ON OFF OFF EXIT 1B
ON ON ON OFF OFF OFF ON ON ENTRY 1C PAIR 14
ON ON ON OFF OFF OFF ON OFF EXIT 1D
ON ON ON OFF OFF OFF OFF ON ENTRY 1E PAIR 15
ON ON ON OFF OFF OFF OFF OFF EXIT 1F
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INSTALLATION MANUAL DACF-710P
iii) At Entry end if train enters into section (1st detection), the counts are incremented
and when train shunts back from the same detection, the counts are decremented.
iii) At Exit end if train enters into section (2nd detection), the counts are decremented
and when train shunts back from the same detection, the counts are incremented.
Table 5.3A gives the details of the DIP switch selection for new modem card No 699.
Table 5.3A: Dipswitch (2-way) selection in Modem Card No 699
Dipswitch Settings SW1
SNO SSDAC Units st nd
1 Way 2 way
1 Exit Unit OFF OFF
2 Entry Unit ON ON
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INSTALLATION MANUAL DACF-710P
adjustment required in this card. The vital Relay is also checked (read back) in the
system as per the driving output.
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INSTALLATION MANUAL DACF-710P
CHAPTER 6
6.0 SYSTEM INTER CONNECTION DETAILS
6.1 INTRODUCTION
This chapter provides the details for interconnection to be made between SSDAC counting
unit, TX / Rx axle detector, modem, Power Supply and other details. This includes the
details of MS Coupler connectors provided on SSDAC counting unit for external
connections.
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1. A BLACK N24 N 24
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2. B RED B24 B 24
Note:
NU – Not Used
NA – Not Applicable
NC – Not Connected
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CHAPTER 7
7.0 MEASUREMENT OF SIGNAL LEVELS
The various signal input & output levels and its limits are given in the following tables. This
should be recorded and adjusted to correct levels wherever necessary.
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CHAPTER 8
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U – Update packet.
42 – Address marked in the system is given below
Entry Exit System State
02 03 Preparatory / Occupied
42 43 Clear
82 83 Error
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INSTALLATION MANUAL DACF-710P
CHAPTER 9
9.0 SYSTEM SOFTWARE
9.1 INTRODUCTION
As described in earlier chapters, the system is designed with two micro controller logic block
card (MLB) in the SSDAC. Both the MLB’s are performing exactly the same functions. Both the
MLB’s are receiving the pulse and supervisory signals from the Signal Conditioning cards. The
MLB’s are continuously monitoring and evaluating the pulse and supervisory signals coming
from the Signal Conditioning cards. The MLB’s validate the pulse signals from wheels and the
direction of train movement. Accordingly, the number of wheels is counted from passing
wheels over the detection points. Each MLB, after detecting pulses, keeps sending a copy of it
to the other MLB.
The MLB’s are programmed to perform the following functions.
i. Monitor and Receive Pulse signals
ii. Output Pulse signals to other MLB
iii. Detect the passing wheels and its direction.
iv. Count the wheels passing at the Axle detectors
v. Supervise the Axle detectors
vi. Code message packets for transmission to remote SSDAC
vii. Decode message packets received from the remote SSDAC
viii. Determine the number of axles in the section
ix. Control and supervise the status of Vital Relay
Each MLB keeps track of three different counts -
i. Primary Count Its own wheel count
ii. Secondary Count wheel count of 2nd micro controller and
iii. Remote Count Count values of remote SSDAC unit.
Each MLB continuously monitors the Pulse input signals and filters them through software
filter. It then regenerates equivalent pulse output levels for transmission to the other MLB.
Therefore, the other MLB gets filtered pulse equivalent signals of the original pulse input
signals after a short delay of up to a maximum of 50 microseconds. Hence, each of the two
MLB’s checks the original pulse input signals and filtered pulse signals received from other
MLB and keeps two sets of wheel counts; Primary count for the original pulse inputs and
Secondary counts for the filtered pulse inputs received from the other MLB.
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INSTALLATION MANUAL DACF-710P
In SSDAC unit, the first MLB card sends the primary count as well as the secondary count
to the remote SSDAC on regular basis of every 800 milliseconds using Update Count
Packet. When the SSDAC detects the first train wheel entering the Track Section, it sends
a Count Change Packet to the remote SSDAC.
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CHAPTER 10
10.0 LED INDICATIONS
10.1 INTRODUCTION
The LED indications are provided on the facial plate i.e. on front side of different
modules of SSDAC to indicate OK or Error condition. These are as follows: -
1. SCC CARDS
i. OSC OK (Green LED)
ii. LD OK (Green LED)
iii. PULSE OK (Green LED)
iv. TP CON (Green LED)
The above LED’s (i) to (iii) will be glowing for OK condition. The LED (iv) TP circuit
is not operational and LED will be in OFF condition.
2. MLB CARDS
i. 8 LED BLOCK (All Red LED’s) - Normally OFF. Glows when error appears.
ii. Clear (Green LED) - Glows for clear condition
iii. Occupied (Red LED) - Glows for occupied condition
3. MODEM CARD
i. TX (Green LED) - Transmitting the signal when LED is flashing.
ii. Rx (Green LED) - Receiving the signal when LED is flashing.
iii. MODE (Green LED) - Normally remains OFF. When system is made OFF and ON,
LED glows and again goes low when system enters self test after successful
reset.
iv. CD (Green LED) - Carrier is detected when LED is glowing.
4. RELAY DRIVER
i. MLB1 CLEAR (Green LED)
ii. MLB1 CLOCK (Green LED) - LED flashes when section is clear
iii. MLB2 CLEAR (Green LED)
iv. MLB2 CLOCK (Green LED)- LED flashes when section is clear
v. RELAY DRIVE (Green LED) - Remains OFF for section occupied and glows when
section is Clear.
All the above LED’s are lit for section clear condition
5. DC-DC CONVERTER
i. + 5V (Red LED)
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1 1 2 1 2
LSB LSB
3 4 4 8
5 6 10 20
HSB HSB
MSB MSB
7 8 40 80
The example for reading an error from the above LED’s is as follows: -
LED's 1 & 3 of LSB glow and LED’s 5 & 6 of MSB glow and all other LED's are OFF. By
adding LSB + MSB LED’s values, the error no. is 35 i.e. negative count error.
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INSTALLATION MANUAL DACF-710P
LED goes OFF. In error condition if reset is applied, MODE LED glows and
immediately goes OFF.
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INSTALLATION MANUAL DACF-710P
ii. Log This LED blinks whenever data is being logged into the flash memory (approx, after
every 2 minutes)
iii. Dnld This LED is ON when data is being downloaded from the flash memory of the card and
becomes OFF when download is complete.
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INSTALLATION MANUAL DACF-710P
The system may give the following errors for the conditions given below:
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The error No. 22 is displayed in the MLB of
Replace the microcontroller IC or MLB card
which the memory is corrupted
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INSTALLATION MANUAL DACF-710P
Software checks matching of counts in MLB cards after detection of all the axles passed
over the axle detectors. If difference of counts is noticed, then the error 32 is displayed.
Error No. Action required
Error No. 32 is displayed if there is Reset the system. If error persists replace
difference between the counts of the two the MLB cards with the spare cards. Send
MLB cards in local unit. the cards for repair.
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INSTALLATION MANUAL DACF-710P
Supervisory error is displayed if any of the axle detectors signal level becomes low.
Immediately MLB cards detect this and error 37 flashes on the MLB.
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INSTALLATION MANUAL DACF-710P
The EOB error is displayed when data of the packets gets corrupted. Due to this the End of
packet is not detected.
Error No. Action required
Error No. 42 is displayed End of packet Check link between the two units. Check the
information gets corrupted. modem cards and apply reset in the system.
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Assuming
Enviornment is Error Code 30
Healthy
Check Error
Code 30 on
MLB Cards
Signal Level
Reset the Check Quad
from remote unit > NO
system and cable Continuity
100mV
Observe the
Error
YES
IMPROPER
PROPER
CONTACT
SETTING/
CONTACT
NO
CD indication ON
ON
Problem Rectify YES
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FAULT DIAGNOSTIC CHART FOR SYSTEM NOT GETTING RESETTED ERROR (3F/7F)
NO RESET Assuming
Enviornment is
Healthy
8-LED
YES NO Measure 48V Reset
Verify self check LED array glow
voltage pulse at ARA Change Reset card
indication at Remote End one by
terminal in location Box
one
NO
YES
Yes
Measure 48V Reset
voltage pulse at ARA Change Modem card Change Modem card Check cable continuity
terminal in location box
Yes
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INSTALLATION MANUAL DACF-710P
Error Code 52
Measure 15V
output on DC to
DC converter
YES
Check
Change Vital
NOT OK Pickup contacts
Relay
of VR Relay
Replace VR Box
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INSTALLATION MANUAL DACF-710P
CHAPTER 11
11.0 EARTHING
S.No Value
1 i. Apparatus case connected to Earth (SSDAC and vital Relay Box is < 1 ohms
housed in Apparatus case and Connected to earth at outdoor.)
ii. All cable connected to same earth
2 Reset box connected to earth (Indoor) near SM’s Room. < 1 ohms
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INSTALLATION MANUAL DACF-710P
xii. In places where the soil is extensively corrosive, the soil may be chemically examined
before deciding the material of the earth electrode.
xiii. The earth wire should be soldered to the screen/armouring and securely connected to the
earth electrode.
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INSTALLATION MANUAL DACF-710P
CHAPTER 12
12.1 INTRODCUTION
Transient surge voltages arise as a result of Lightning discharge, switching operations in
electrical systems and electrostatic discharge. These surge voltages often destroy the
electronic equipment to a large extent.
The coupling of surge voltages from one system to another system can be Galvanic,
inductive or capacitive. The three types of coupling are explained here using the example
of lightning discharge.
Galvanic Discharge
High Lightning current amplitudes cause a surge voltage at the grounding resistance, which
in turn couples into the connected lines via equipotential bus bar.
Inductive Coupling
Inductive coupling into a conductor occurs through the magnetic field of another current
carrying conductor, following transformer principle.
Capacitive Coupling
Capacitive coupling always occurs via the electric field between two points with a high
potential difference.
In order to prevent surge voltages from destroying the equipment, all the input lines of
SSDAC i.e. Power Supply (24V), Reset (48V) & both the Modem lines i.e. SSDAC to SSDAC &
SSDAC to reset box is to be routed through surge voltage protection devices for effectively
protecting the system.
These devices (6 numbers) are mounted in a box and supplied along with the system (as
per drawing no A008427A4, page no D31). One number of SVPD box is to be installed at
each location and wired to the SSDAC (as per drawing no. W008556A4, page no D32 &
D33).
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INSTALLATION MANUAL DACF-710P
In addition to these surge modules, added protection is given for input 24V line that acts as
a filter for 24V DC. It helps in filtering out the surge entering in the system during
changeovers etc.
SVPD unit is supplied by two types of protection devices. The wiring details of each type
are to be done as per supplied item.
Currently CEL supplies two types of Surge devices. OBO make & Phoenix make. The wiring
details of each of these devices are required to be done as per drawing enclosed.
OBO make
For these devices, kindly refer to the drawing no W008556A on page D32.
Phoenix make
For these devices, kindly refer to the drawing no W008556A on page D33.
Note It is recommended to use as shorter wire as possible for connections and earthing to these
devices for better protection. In case of lightening, Do replace these modules in case of its damage
due to lightening with fresh modules
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INSTALLATION MANUAL DACF-710P
CHAPTER 13
Card 1 of reset box is Interface card or controller block which is plugged in ECN2 connector of
motherboard.
i. This interface card is used to provide interface with the SSDAC unit on a pair of cable (2
wire of Quad is preferred).This communication from reset box and SSDAC unit is used for
transmission of packets from SSDAC to the reset box. These packets are then processed in
the reset box to display the information in the form of Axle Counts and Error Code of both
local unit and remote unit.
ii. It has onboard flash memory which stores the serial packets of the local unit. In order to
analyse the local SSDAC packets, this data can be downloaded from the flash by using any
windows compatible PC.
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INSTALLATION MANUAL DACF-710P
iii. It has support for Keypad consisting of 4 keys. The keypad is used for setting up time and
date of the reset box.
Card 2 of reset box is Reset Card is plugged in ECN1 connector of the motherboard which
controls the following activities.
i. SM's Key actuator & Reset button for resetting.
ii. Flashing of the Prep Reset. LED is controlled by this card. When preparatory reset state is
achieved then signal is given by Interface card for making the LED steady.
iii. Counter for recording no. of resets.
iv. 24V to 48V DC-DC converter which generates 48V DC required for resetting of SSDAC unit.
The following functions are controlled in the motherboard of reset box
i. Line Verification proving circuit is provided.
ii. This card has the provision for extending the 24V when reset button and SM’s Key is
pressed. NC proving of SM’s key & reset Button is also provided. It can be used for
extending the reset command to remote location in case it is required.
1. During POWER ON of reset box, the reset box will display the Software version of the
SSDAC software used and its checksum.
LOCAL DP LOCAL DP
CEL Reset Box RB-259 CEL Reset Box RB-259
Axle Counts Error Section status Axle Counts Error Section status
2. After the checksum, the reset box will wait for the user to apply the reset to SSDAC
system. The screen will display “RESET THE SYSTEM”.
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INSTALLATION MANUAL DACF-710P
REMOTE DP REMOTE DP
Axle Counts Error Section status Axle Counts Error Section status
3. The reset shall be applied as defined in the resetting procedure given below. On pressing
of Reset button and SM’s Key, the PREP RESET indication will start flashing. The remote
unit also required to be reset.
4. When reset is applied to both the local and remote SSDAC units, the flashing PREP reset
indication will become Steady when the system attains the “Preparatory state”. At this
point the LCD will display the following message.
LOCAL DP LOCAL DP
00000 00 Preparatory state 00000 00 Preparatory state
Axle Counts Error Section status Axle Counts Error Section status
5. When Pilot train is moved in the section, the LCD will display the axle counts in local DP
on the Entry side Reset Box and in Remote DP on the Exit side Reset Box as shown below.
The section status is displayed as Preparatory state.
LOCAL DP LOCAL DP
00002 00 Preparatory state 00000 00 Preparatory state
Axle Counts Error Section status Axle Counts Error Section status
6. When Pilot train is moved out of the section, The LCD displays the axle counts in Remote
DP on the Entry side reset Box and in Local DP on the exit side reset Box. When the axle
counts are matched, the section status is displayed as Clear and Section CLEAR indication
glows.
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INSTALLATION MANUAL DACF-710P
LOCAL DP LOCAL DP
00002 00 Clear 00002 00 Clear
Axle Counts Error Section status Axle Counts Error Section status
7. The axle counts are incremented or decremented according to the direction of train
movements.
8. In case of failure, Error code is displayed at both the ends. The Error code along with its
description is displayed. This Error code is required to be recorded by SM’s before
applying Reset.
LOCAL DP LOCAL DP
00002 44 Independent Pulses 00002 80 Remote Error
Axle Counts Error Section status Axle Counts Error Section status
9. On applying the reset, this Error code will get refreshed and is stored in flash. List of 10
recent error codes are stored in Error log entry. This Error Log can be viewed by
maintainer at all times without the use of PC. By pressing reset button for 10 secs, last 10
Errors will be displayed with Date and time one by one. After the complete Error log, the
LCD display will come back to its original state. This Error log can be activated at any time
but is recommended not to done during the reset procedure.
10. One reset switch is provided on the interface card or motherboard which can be used for
resetting the display of LCD. This switch can be accessed by removing the top cover of the
reset box. This reset will not affect the status of the section and be applied at any time
but it is recommended to not to use it during the reset operation.
11. In case the cable pair from location box to SSDAC unit is not provided, the display
information on the reset box will not appear.
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LOCAL DP XXXXX XX No DATA from Local DP LOCAL DP XXXXX XX No DATA from Local DP
REMOTE DP
XXXXX XX No DATA from Remote DP REMOTE DP
XXXXX XX No DATA from Remote DP
Axle Counts Error Section status Axle Counts Error Section status
UP DN
LOCAL DP Show Date & Time LOCAL DP Show Date & Time
23/09/2007 10: 30: 33 DD/MM/YYYY HH MM SS
REMOTE DP REMOTE DP
Axle Counts Error Section status Axle Counts Error Section status
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• RESETTING OPERATION
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CHAPTER 14
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CHAPTER 15
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15.5 GENERAL
I. Check all the cable connections on the CT board of apparatus case at both locations.
Ensure that these are in tight condition.
II. Check the deflector plates of the Axle detectors are in normal position. If found loose
this should be properly tightened.
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CHAPTER 17
17.1 DO’S
i. The inter connection drawings are to be followed for connecting the Transmitter & Receiver
coils. Tx1 is 21 KHz, Tx2 is 23 KHz & Rx1 and Rx2 coils are 21 KHz & 23 KHz, respectively.
ii. Ensure that Receiver and Transmitter coil cables have been laid in different pipes.
iii. Ensure that both the TX coils & Rx coils are having proper alignment on Rail.
iv. Ensure that packing of sleepers with ballast on both sides of Axle detector is proper.
v. Check that metal sheaths of the outdoor cable are connected to earth at both ends
vi. The recommended cables for wiring of the system at site should be used.
vii. The steady Battery voltage 24V should be maintained.
viii. The cable connections should not be connected loosely.
ix. The M.S Circular connectors of SSDAC are checked and maintained firmly.
x. The SSDAC & Reset box is provided with sealing arrangement. They should be sealed at site.
xi. Resetting should be done only after ensuring that there is no train in the section
17.2 Don’ts
i. Don’t install the Axle detectors near the rail joint (should be more than 6 sleepers away).
ii. Don’t install the Axle detectors where the rail is badly worn out.
iii. Don’t cut or join the Transmitter / Receiver cables supplied along with the coil. It would
result in change of frequency of signal.
iv. Don’t lay the TX and RX coil cables in the same pipe.
v. Don’t use any other outdoor cable other than the recommended cables.
vi. Avoid installing the Axle detectors on curve of rail / too much slope of rail to the possible
extent.
vii. Don’t remove the cards from SSDAC units under power ON condition of system.
viii. Remove card if necessary after Switching OFF the power to the unit.
ix. Donot remove Tx/Rx Coil from web of the rail without switching OFF power Supply to unit.
x. Donot place any metal parts, Rails, metal sheets or metal foils near Tx/Rx coils.
if required metal parts shall be placed at least half meter away from energised Tx/Rx coils.
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CHAPTER 18
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1. Data analyzer setup window shows the default installation path of the data analyzer
software (c:\program files\Data analyzer-SSDAC). This path can be changed by
selecting “change directory” button.
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INSTALLATION MANUAL DACF-710P
18.2.1 Plug in the Event Logger card in the SSDAC system, it gets powered on and
download LED remains “ON” continuously. It takes a maximum of 3 minutes to get
download LED turned off. After this the card is ready for following operations.
Check CRC
Reset flash.
Erase flash.
Time stamping.
Show current time stamp.
Download data.
18.2.2 While recording the data, time is getting stamped every 2 minutes.
18.2.3 To ensure storage of the data for the current activity, at least 2 minutes gap is
required before any other activity involving communication failure or power reset is
carried out.
18.2.4 During the train movement no time stamping activity is carried out in flash, hence
time stamps may not have a regular 2 minutes gap during train movement.
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INSTALLATION MANUAL DACF-710P
Check CRC: for checking the checksum stored in the micro-controllers of MLB
cards. To check the CRC, data must be downloaded first from the event logger card.
Reset flash: for resetting the flash, click on reset flash.
Erase flash: to erase all 4096 pages of the flash memory, click on to erase flash and
then click on to erase button. “Flash erased” message will be displayed on the host
computer screen. Further writing of the flash memory will start from page number “0”.
Before erasing the flash, time stamping is recommended.
18.3.4 Time stamping:
Click on to the “Time stamping” option.
Click on the “Select the current time”.
Click on “Form packet”.
Click on “Send packet”, time packets are sent to the event logger card.
Show current time stamping: Once clicked on this option the system shows
the current time stamping. The date time will appear in the following format:
{15:03:2005|12:27:00}
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INSTALLATION MANUAL DACF-710P
Go to card function.
Check the setting for 19200 bauds, parity none, data bits 8 and stop bit 1.
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Give the name of station or station code. Station name / code should be atleast 3
characters long.
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INSTALLATION MANUAL DACF-710P
The required time slots in “From” and “To” windows for which the analyzing is to be
done should be selected. After time zone selection, click on “VIEW”.
The result menu comes on having information regarding serial packets and Card
removal information.
18.6 Current Report and Error Report for the selected “*.dat” file are ready to be viewed. The
current report can be exported in the Excel format by clicking on “Export to Excel”
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INSTALLATION MANUAL DACF-710P
button. If Microsoft Excel is not installed in the PC or Laptop, then the user can use the
“Print” button to print the report directly or the “Save Report” button to save the report
in a text file.
18.7 Search feature is provided in data analyzer software to search and analyze the data on
18.8 Detailed help instructions are provided in the help menu of the software.
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SSDAC Unit Sl. No. (Entry end) __________________________________ (Exit end) _________________________________________
Rail section. (Entry end) 90R / 52 Kg / 60 Kg (Exit end) 90R / 52 Kg / 60 Kg
Line used for _______________________________________ Section / Station___________________________________________________
The status includes when power connected, Reset applied, Preparatory, Occupied (Train Entry in Section), Clear (Train Exit from Section)
Station A Station B
Relay Room Location Relay Room Location
S.
No Condition Q-Relay Q-Relay System Status Q-Relay Q-Relay System Status
. SMs Room Status Status SM's Room Status Status
(Reset Box) (Reset Box)
24Vdc is Occupied (Red) 24V dc is available to
connected at LED indication glows PPR↓VPR↓ PR↓ VR↓ system. No indication PPR↓ VPR↓ PR↓ System is OFF
Station A System is ON & waiting VR↓
1. (Fuse connected) for Reset
24V dc is Occupied 24Vdc is available to
2. connected at -do- (Red) LED -do- system.
Station B indication System is ON.
(Fuse connected) -do- -do- -do- glows -do- Waiting for Reset
i) Insert SM’s Key, i) Reset is applied to
turned & keep system.
pressed PPR↓ PR↓ VR↓ ii) The self test starts in -do-
3. Reset applied at ii) Reset Button VPR↓ the system and goes to
Station A. pressed Error due to far end unit
iii) Both released is not resetted -do- -do- -do-
vi) Occupied (Red
Indication remains.
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Annexure I (Page 2 of 3)
SSDAC Unit Sl. No. (Entry end) __________________________________ ( Exit end) _________________________________________
Rail section. (Entry end) 90R / 52 Kg / 60 Kg ( Exit end) 90R / 52 Kg / 60 Kg
Line used for _______________________________________ Section / Station___________________________________________________
Station A Station B
SM’s Room (Reset Relay Room Location SM’s Room Relay Room Location
S. Conditio Box) (Reset Box)
No. n
Q Relay Status Q Relay System Status Q Relay Q Relay Status System Status
Status Status
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Annexure I (Page 3 of 3)
SSDAC Unit Sl. No. (Entry end) __________________________________ ( Exit end) _________________________________________
Rail section. (Entry end) 90R / 52 Kg / 60 Kg ( Exit end) 90R / 52 Kg / 60 Kg
Line used for _______________________________________ Section / Station___________________________________________________
Station A Station B
SMs Room Relay SM’s Room Relay
Location Location
S. (Reset Box) Room (Reset Box) Room
Condition Q-Relay Q-Relay System status Q-Relay Q-Relay System status
No.
status status status status
6. 1st train enters Power On LED (Yellow) System registers Power On LED glows. System registers wheel
the block remains. Occupied wheel counts & PR Prep. Reset LED PR↑ VR↓ counts at station A. PR
section from (Red) LED remains. Prep PPR↑ relays remains remains ON. PPR↑ & PPR relays remains
stn A Reset LED remains ON. VPR↓ PR↑ VR↓ pickup. VPR↓ picked up.
7. 1st train clears Power On LED glows. Counts in both units Power on LED glows. Counts in both units of
the section Prep. Reset LED of the system Prep. Reset LED the system become
from Stn B. becomes OFF. Occupied PPR↓ become equal. The becomes OFF. PPR↓ equal. The decision to
LED becomes OFF & VPR↑ PR↓ VR↑ decision to drive VR Occupied LED becomes VPR↑ PR↓ VR↑ drive VR relay ON is
clear LED glows relay ON is given. VR OFF & clear LED given. VR relay picks up.
relay picks up. becomes ON
8. On Power on LED glows. System registers in Power on LED glows. System registers in
subsequent Prep. Reset LED is OFF. counts at station A. Prep. Reset LED is OFF. counts at stn A. System
trains entry in Occupied LED becomes PPR↓ System goes to OCC Occupied LED becomes PPR↓ goes to OCC state. VR is
the block ON. Clear LED becomes VPR↓ PR↓ VR↓ state. VR is driven ON. Clear LED becomes VPR↓ PR↓ VR↓ driven OFF.
section from OFF. OFF. OFF.
stn A
9. Trains clears Power on LED glows. System registers out Power on LED glows. System registers out
the block Prep. Reset LED is OFF. counts at station B. Prep. Reset LED is OFF. PR↓ VR↑ counts at stn B. After
section and Occupied LED becomes PPR↓ After count balancing Occupied LED becomes PPR↓ count balancing the
enters stn B OFF. Clear LED becomes VPR↑ PR↓ VR↑ the system goes to OFF. Clear LED VPR↑ system goes to clear
ON. clear state becomes ON. state.
Note: In the wiring circuit of Reset Box contacts of PPR & VPR are not proved. Hence reset voltage is extended to system in PPR or VPR pick up condition. Reset is
however possible only in error or occupied state after registration of at least one out count.
84
INSTALLATION MANUAL DACF-710P
85
ORDERING INFORMATION
INSTALLATION MANUAL DACF-710P
2. Consignee details :
6. Date of Installation :
Dated:
- 87 -
INSTALLATION MANUAL DACF-710P
- 88 -
TX1 PULSE 1
MLB1 MODEM TO 2nd UNIT OF
SCC1 SSDAC
V.21
RX1
AXLE
DETECTORS
TX2 RELAY
MLB2 DRIVE VITAL RELAY
SCC2
PULSE 2 (24V) (Q TYPE,24V
RX2 1000 Ohms)
AXLE
DETECTORS
DC-DC
CONVERTER
BATTERY
24V
LEGEND :
SCC1 & 2: SIGNAL CONDITIONER CARD 05-05-03
MLB1 & 2: MICRO CONTROLLER LOGIC BLOCK CARD SSDAC (DACF-700A/AP/710A/P)
BLOCK DIAGRAM
SYSTEM2/Bhandari/DACF-AP/7744A4
1 1
PULSE FORMATION IN SSDAC
i +Ve COUNT
PULSE 1
21KHz
PULSE 2
23KHz
-Ve COUNT
ii
PULSE 1
21 KHz
PULSE 2
23 KHz
SET SET
LD OK LD OK
RELAY DRIVER OK 15V
(ISO)
PULSE OK PULSE OK OCCUPIED OCCUPIED
HOST GND(ISO)
CLEAR CLEAR
PHASE REV. PHASE REV. 710 710 AGC
SCC-1 SCC-2 MLB 1 MLB 2 EVENT LOG MODEM RELAY DRV. DC - DC CONV
30-09-05
SSDAC (DACF - 700AP/710P) PHASE REVERSAL
FRONT VIEW
SYSTEM2/Bhandari/DACF-AP/7745A4 1 1
REV.NO. DATE CHANGE NOTE NO. CHANGE
SSDAC (DACF-710A/P)
REAR VIEW
DRG.NO.
SYSTEM PRODUCTION DIVISION
I008442A4
D10
SYSTEM2/Bhandari/DACF-700A/AP/710A/P/8245A4 SAHIBABAD - 201010 (U.P.) SHEET 1 OF 1
FIXING
CLAMPSX4NOS
VITAL RELAY
BOX WOODEN
SSDAC PLANK
WITH PR
APPARATUS CASE
(FULL)
N24
B24
A
F1 R SURGE VOLTAGE
2A A
PROTECTION DEVICE
TS1 TS1
CT BOARD
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
APPARATUS CASE
WIRED TO EARTH
30-04-12
SSDAC (DACF-700AP/710P)
INSTALLATION OF SSDAC,VR BOX IN LOCATION BOX
I008477A3
1 1
B24
F1
2A VR
C
5MOD1 TO O
RESET + 5MOD2 SPARE SPARE AMS1 N G MS8
1 T (48V DC) 1 (SVPD) 1 1 T 1
SVPD) TX A
O C C
CMS8 RESET - 1MOD2 SPARE SPARE TX1 BMS1 T I H MS8
N24 2 2 (SVPD) 2 21 KHZ 2 S R 2
C F C
SPARE R1VPR DMS8 A1 EMS1 O CMS1 O U L MS8
3 S 3 TR/TPR 3 I 3 R I 3
T L TX2 S T
KMS8 R2VPR BMS8 A2 FMS1 S DMS1 I S P MS8
4 A 4 TR/TPR 4 23 KHZ 4 G. 4
1MOD1 T R1PPR JMS8 7MOD4 MODEM AMS2 SPARE SPARE
5 (SVPD) I 5 5 RESET BOX F 5 5
R
AMS8 O R2PPR MMS8 11MOD4 MODEM O RX1 BMS2 SPARE SPARE
6 N 6 6 M 21 KHZ 6 6
SPARE SPARE SPARE 7MOD3 MODEM RX CMS2 SPARE SPARE
7 7 7 TO 2ND UNIT 7 7
C
SPARE SPARE SPARE 11MOD3 MODEM O RX2 DMS2 SPARE SPARE
8 8 8 I 23 KHZ 8 8
L
S
NOTE :-
1-THE SVPD CONNECTION SHOWN IS FOR PHOENIX MAKE.FOR OBO MAKE REF.DRG. D33 30-04-12
2- MOD1,MOD2,MOD3,MOD4 ARE OF SVPDS. SSDAC (DACF-710A/P)
3- TS3-3,4 SHALL BE CONNECTED FOR AMPLITUDE TYPE SSDAC ONLY.
4- WAGO OR PHOENIX MAKE CONNECTORS SHALL BE USED FOR TERMINATION.
SYSTEM2/DACF-710P/8474A3 1 1
R
TTE
SMI
N
TRA
RECEIVER
SYSTEM2/Bhandari/DACF700-A/8451A4 1 1
STATES OF SSDAC
LED DISPLAY
ACS
RESET
#
>
REG
********* *
ADITYA 25-10-04
SSDAC DACF-700AP/710P
TRAIN SIMULATOR
K008071A4
1 1
STATION 'B'
STATION 'A' AS ENTRY HS FITTING OF
SECTION EXIT
AXLE DETECTORS
T T T T
A B D C
LEFT RAIL
R R R R
1 TRAIN MOVEMENT NORMAL DIRECTION OK
RIGHT RAIL
AS HS
SECTION
LEFT RAIL
AS HS
ENTRY
SECTION
T T
A B
LEFT RAIL
R R
EXIT
3 TRAIN MOVEMENT NORMAL DIRECTION NOT OK
R R
D C
RIGHT RAIL
T T
AS HS
EXIT
SECTION
T T
D C
LEFT RAIL
R R
4 ENTRY TRAIN MOVEMENT NORMAL DIRECTION NOT OK
R R
A B
RIGHT RAIL
T T
SR.NO. DATE CHANGE NOTE NO. CHANGE
DRG.NO.
SYSTEM PRODUCTION DIVISION
I008072A4
D28
SYSTEM2/Bhandari/DACF-AP/8072A4 SAHIBABAD - 201010 (U.P.) SHEET 1 OF 1
SSDAC /
-710 P
2
S.NO. DESCRIPTION
USE HAMMER 1 MARKING JIG (F008300A3 SH.1OF2)
FOR PUNCH
2 `C` CLAMP
4 3 CENTER PUNCH
4 RAIL
3
+0.5
-
A3
B
GROUND
+- 2
+
WHEEL DIA - 500.00 FLANGE - 22.00 - 2 MM
22.00
EFFECT ON SSDAC-UNDETECTED WHEEL DIA - 500.00
EFFECT ON SSDAC-UNDETECTED
20
+- 2
X
22.00
30
20
6.5
=65=
4.73
7
28
X
65
=80=
7.5
80
X
8
X 88
100
SECTION AT X-X 10
100
10 10
X
SECTION AT X-X
A3
SECTION AT X-X 01
DRAWN SHASHI BHUSHAN 21.04.2012 N.T.S.
CHECKED
SSDAC
2. RAIL DOLLY SOLID WHEEL APPROVED
FLANGE - 25mm D34 PUSH TROLLEY
WHEEL DIA - 100.00
EFFECT ON SSDAC-UNDETECTED SYSTEM PRODUCTION DIVISION RECOMMENDED FOR SSDAC
SYSTEM4/ADITYA/MECH/8697A3
SAHIBABAD - 201010 (U.P.) POO8697 0 1
INSTALLATION MANUAL DACF-710P
- 89 -