Man-1078 SigmaCP 24
Man-1078 SigmaCP 24
Man-1078 SigmaCP 24
*Man-1078*
Index Page
0B1. Introduction ....................................................................................................................... 3
1B2. Safety and mounting ........................................................................................................... 3
2B3. Technical specification......................................................................................................... 4
3B4. Using intrinsically safe barriers ............................................................................................. 8
4B5. Control panel fascia ............................................................................................................ 9
5B6. Connecting to the circuit board .......................................................................................... 10
6B7. Software revision number .................................................................................................. 10
7B8. Detection zone wiring........................................................................................................ 11
8B9. Sounder circuit wiring ....................................................................................................... 12
9B10. Connection to remote control terminals............................................................................. 12
10B11. Aux 24V DC supply.......................................................................................................... 13
1B12. Connection to relay contacts ............................................................................................ 13
12B13. Connection to Repeater panels ......................................................................................... 13
13B14. Connection to Ancillary boards ......................................................................................... 14
14B15. Connection to 8 way Sounder boards ................................................................................ 14
15B16. Panel operation............................................................................................................... 15
16B17. Configuration options ...................................................................................................... 16
17B18. Watchdog reset switch .................................................................................................... 19
1819. Processor reset switch ..................................................................................................... 19
19B20. Internal indications – troubleshooting ............................................................................... 19
39B20.1 Mains fail .................................................................................................................................. 19
40B20.2 Batt fail ..................................................................................................................................... 19
41B20.3 CPU fault................................................................................................................................... 19
42B20.4 Aux 24V fault ............................................................................................................................ 19
43B20.5 Batt low .................................................................................................................................... 19
4B20.6 Earth fault ................................................................................................................................. 19
45B20.7 Sys fuse fault ............................................................................................................................ 20
46B20.8 S1 fault and S2 fault .................................................................................................................. 20
47B20.9 Comms fault .............................................................................................................................. 20
Man-1078_Sigma_CP_24
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1. Introduction
0B
The SIGMA CP range consists of a series of conventional fire alarm control panels designed in accordance
with European standards EN54-2 and EN54-4 Fire Detection and Fire Alarm systems - Control and Indicating
Equipment.
The range consists of 2, 4 and 8 zone control panels. All control panels are available in two versions:
Sigma K11 range in which detectors and call points are wired on separate circuits to sounders (two sounder
circuits are provided).
Sigma T11 range in which detectors, call points and sounders are wired to the same pair of cables. This is
what is commonly referred to as a two-wire system.
Wiring sounders to the detection circuits eliminates the need to install sounder circuit cables and also offers
the ability to provide zoned or two stage sounder operation.
All control panels have an integral, mains powered battery charger and power supply designed in
accordance with the requirements of EN54-4.
In addition to the requirements of EN54-2 the control panel has the following facilities:
………….Test condition to allow the automatic resetting of zones in alarm for testing purposes. EN54-2
Section 10 option with requirements.
………….Delay of the actioning of fire alarm devices (sounders) so that an alarm may be verified before a
premises is evacuated. EN54-2 Section 7.11 option with requirements.
………….Fire alarm devices to enable an audible warning to be sounded throughout a premises upon the
detection of a fire condition or the operation of a manual call point. EN54-2 Section 7.8 option with
requirements.
In addition to the requirements of EN54-2, all control panels have voltage free relay contacts for fire and
local fire which operate upon fire condition. These are to be used for local control and signalling.
Suppliers of articles for use at work are required under section 6 of the Health and Safety at Work act 1974
to ensure as reasonably as is practical that the article will be safe and without risk to health when properly
used.
An article is not regarded as properly used if it is used ‘without regard to any relevant information or advice’
relating to its use made available by the supplier.
This product should be installed, commissioned and maintained by trained service personnel in accordance
with the following:
(i) IEE regulations for electrical equipment in buildings
(ii) Codes of practice
(iii) Statutory requirements
(iv) Any instructions specifically advised by the manufacturer
According to the provisions of the Act you are therefore requested to take such steps as are necessary to
ensure that you make any appropriate information about this product available to anyone concerned with its
use.
This equipment is designed to be operated from 230V 50Hz mains supplies and is of class 1 construction. As
such it must be connected to a protective earthing conductor in the fixed wiring of the installation and a
readily accessible double pole disconnect device meeting the requirements of EN60950/IEC950 which
disconnects live and neutral simultaneously shall be incorporated in the fixed wiring.
Switch disconnect devices such as MK Sentry 63A or similar are suitable for this.
Failure to ensure that all conductive accessible parts of this equipment are adequately bonded
to the protective earth will render the equipment unsafe.
This control panel is designed for indoor use only and at temperatures between -50C (+/- 3) and +400C (+/-
2) and with a maximum relative humidity of 95%.
The IP rating for the enclosure is IP30.
Operation outside of these limits may render the equipment unsafe.
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Mounting
The control panel should be mounted on a dry, flat surface, at eye height to the display and in a level
position such that the enclosure is not distorted.
Screws or bolts of a minimum of 5mm diameter must be used to mount the enclosure in all three mounting
positions.
It should be positioned in an accessible position as agreed with the end user.
Suitable fixings should be used at all fixing points such that the control panel is securely mounted and is not
liable to move once fixed.
The control panel should not be mounted in another enclosure or near sources of excessive heat.
Cables should be connected using suitable cable glands fitted to the knockouts provided. If additional cable
entry points are required, all swarf and debris caused by drilling of additional cable entries must be cleared
before power is applied to the panel.
3. Technical specification
2B
Zonal sounder outputs 24V Fused at 500mA with electronic fuse 1.6 Amp total load over all circuits
U U
Fault relay contact rating 30VDC 1A Amp maximum for each Maximum ratings not to be exceeded
Fire relay contact rating 30VDC 1A Amp maximum for each Maximum ratings not to be exceeded
Local fire relay contact rating 30VDC 1A Amp maximum for each Maximum ratings not to be exceeded
Zone quiescent current 1.6mA maximum See table 4 for detector types
Terminal capacity 0.5mm2 to 2.5mm2 solid or stranded wire
Number of detectors per zone > 20 Dependent on type
Number of sounders per circuit Dependent on type and current consumption See table 6 for sounder types
Detection circuit end of line 6K8 5% ½ Watt resistor Supplied in terminals
Sounder circuit end of line 10K 5% ¼ Watt resistor Supplied in terminals
No. of detection circuits (see table 2 for number of zones for each model) Dependent on model
No. of sounder outputs 2 (plus one per zone on T models)
SIL, AL, FLT, RST inputs Switched -ve, max resistance 100 Ohms
Zone normal threshold 8K ohm TO 1K ohm
Detector alarm threshold 999 ohms to 400 ohms
Call point alarm threshold 399 ohms to 100 ohms
Short circuit threshold 99 ohms to 0 ohms
Head removal condition 15.5 to 17.5 volts Zener clamp detector base to be used
Cabling FP200 or equivalent (maximum capacitance 1uF Metal cable glands must be used
maximum inductance 1 millihenry)
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Table 3 - Battery charge voltage versus temperature
Temperature Battery charge voltage
0
C
0 29.2
10 28.56
20 27.99
30 27.55
40 27.13
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Although the current consumption of many detection devices would allow more than 32 to be connected to a
zone, this number should be limited to 32 to ensure that a short or open circuit on the wiring does not
prevent the indication of a fire alarm from more than 32 fire detectors and/or call points as required by
European standard EN54-2.
No more than 32 detectors and call points should be fitted to any one zone.
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Table 5 - Compatible detector bases and call points
Model Type Manufacturer Comments
YBN-R/4 STANDARD Hochiki
YBO-R/5 STANDARD WITH REMOTE LED Hochiki
YBM-R/6 STANDARD BASE Hochiki
YBN-R/4SK DIODE BASE Hochiki Must be used with LCMU*
YBO-R/5SK DIODE BASE WITH REMOTE LED Hochiki Must be used with LCMU*
YBO-R/6SK DIODE BASE Hochiki
YBO-R/5PA SAVWIRE Hochiki Only with T series panels
YBO-R/6PA SAVWIRE Hochiki Only with T series panels
AUBDR100-470 470R RESISTOR + DIODE Argus Vega Must be used with LCMU*
AUBSR100-470 470R RESISTOR Argus Vega
Note: LCMU (Line Continuity Monitoring Device) part number K1406 allows call points mounted
downline of detectors that have been removed from diode bases to continue to operate.
*LCMU units are not compatible with 2 wire “T” series Sigma CP Panels.
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4. Using intrinsically safe barriers
3B
SIGMA CP control panels support the use of I.S. barriers for connecting to equipment in hazardous areas.
Only certified detectors, call points and sounders may be used in hazardous areas and these
must be connected to the control panel via a compatible I.S. barrier as listed in table 7.
Connection of the I.S. barrier changes the characteristics of the detection circuit so zones that have I.S.
barriers connected must be adjusted to work with them.
Programmable options C61 to C68 allow each zone to operate with I.S. barriers.
The amount of detectors and call points that can be connected to a zone is limited by the I.S. approval
system diagram which should be supplied by the detector manufacturer. The power rating of the end of line
resistor will be dependent upon the Zone classification rating (Gas class) this will be specified on the system
diagram.
I.S. DETECTOR
MTL5561 +IN +
OUT
I.S . CALL POINT
6K8 END OF
+
+
+
LINE RESISTOR
ZONE
-
IN
-
OUT
POWER RATING WILL
DEPEND UPON I.S. ZONE
-
-
CLASSIFICATION
-
MTL7778ac
+ + + +
SOUNDER
OUTPUT
IN OUT IN OUT
+
I.S .
EARTH
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5. Control panel fascia
4B
In addition to the mandatory controls and indications required by the EN54-2 standard, two, seven segment,
LED displays and MODE, SELECT and ENTER buttons are provided to allow easy entry and storage of codes
to configure the control panel to suit the requirements of the installation.
It is most important that the polarity of the red and black wires is observed as wrong
connection of these will damage the control panel.
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6. Connecting to the circuit board
5B
All connections for field wiring are to a single row of terminals along the top of the circuit board.
The connections for the power cables are to a pluggable terminal block which may be pulled off of the board
to remove the plate/PCB assembly. Remove this pluggable terminal only with mains power off.
Shielded fire alarm cable such as FP200 and metal cable glands must be used for all connections to the
panel.
The resistance of any core of any cable must not exceed 25 ohms. The shield of the cable must be bonded
securely to the enclosure via a metal gland.
Wiring should enter the enclosure at the top of the panel using the knockouts provided and be formed tidily
to the appropriate terminals leaving only enough wire to ensure that there is no strain on the PCB.
Terminals are capable of accepting wires of up to 2.5mm2.
Terminal designations
Wiring must not go across the front of the circuit board plate or between the plate and the circuit board.
If cable entries need to be in positions other than at the knockouts provided, wiring must be fed behind and
well away from the surface of the circuit board.
The space at the bottom of the enclosure is largely occupied by the standby batteries so this must be borne
in mind when considering cable entries.
CORRECT
INCORRECT INCORRECT
C 7 C6
X1
C5 C4 C3 C2 C 1 C 23 C 22 C 21 C 20 C127 C128 C 35 C 36 C 33 C 34 C 60 C 61
X2
C 106 C 107
New features may be added to Sigma CP fire control panels from
FB21 FB20
time to time and when this is done the operating software of the
FB7
VDR2
FB10
FB8
FB1
VDR4
FB6
FB5
FB4
FB2
VDR3 VDR1
FB3
FB9
C102
C100
C108
C109
C101
C99
C98
F2 C 97 C 93 F 10
F9
R8
R99
C 51 TR 19
R51
R14 R18
TR 23
R12
F4
F3
R60
F12
RL 3 RL 2 RL 1 R2 RL 10 RL 9
LED16
R117
R168
C94
R98
R6
D4 F 11
+
C76
R19
R166 R167
TR3
TR1
LED34
C 75
LED12
C 74 C 73 D 12 TR47
D3 D2 D1
R103
R 13 R7 R1 TR9 D 11
TR26
C105
R158
R53 R69
C30
D 35 D 34 D 33 D 32
+ + + + IC 2
R22A R21
R10D R11
R16C R17
R16B R15
R4E R5
LED9
LED11 LED15
C 68 C 67 C 66 C 65
C104
R157
R80 R156
R81 C103
C31 R155
REG1
R16E
R16F
R10E
R10B
R10A
R16D
R10F
R16A
R4C
R4B
R4A
R56
R52
R55
R4F
C 24
D 30
D20
+
LED13
J1 R 129 TR 24
D9 IC 4
C45 C44
R 87 D 16 IC 1
XTL1
D 10
LED14
R112 R67 R61
R113 R62 R64
R63
R 104
D 15
TR 28 R 126
R128
R102
R137
R 85 TR 25
C95
C55
C83 C81
Sig27. hex D 14
+
R107
D 41
REG3
R 86
IC 6
R110
Jason C 25
repeaters etc.
IC 10 R 130 D 13
R 131
+ VR 1
R88 R111 R114
D 23
R 132 Z 14
C43
C 27 L1
R 133 D 22 C 82 IC 5
C42 R90
R 78
R74
R73
R71
R72
C 41 R 135
R 134
C 56
T3 SW2 SW1
SW4
SERIAL NUMBER TH 1
+ R 75
D 1008 ISSUE06
R 76
LED 17 LED 35 LED5 LED4 LED3 LED6 LED7
R 70
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8. Detection zone wiring
7B
The detection zones provide a nominal 24V DC to power conventional detectors and call points as listed in
the compatibility tables on pages 6 and 7.
The wiring is monitored for open and short circuit fault conditions by removing the 6K8 end of line
monitoring resistors that are supplied fitted to the control panels’ terminals and placing them across the last
device that is wired to the zone circuit.
Detection zone circuits must be wired as a single, radial circuit with no spurs or T junctions to enable the
monitoring circuit to work correctly.
On T series panels, polarised sounders must also be wired across the detection zone but in reverse polarity
to that shown by the zone terminals (see figure 5 below). At least one sounder should be fitted to each
detection zone. Each zone can be configured individually as a 2-wire type zone or a non 2-wire type zone
using configuration options C1 to C8.
For non 2-wire systems that are required to comply with BS5839 Part 1: 2002 detector removal
requirements, detector bases fitted with a Schottky diode should be used and the end of line resistor
replaced with an LCMU active end of line monitoring device.
DETECTOR
+IN +
OUT
CALL POINT
6K8 END OF
+
LINE RESISTOR
ZONE
-
IN
-
OUT
-
DETECTOR POLARISED
SOUNDER
6K8 END OF
+ +
+
LINE RESISTOR
ZONE
-
IN
-
OUT
IN OUT
-
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9. Sounder circuit wiring
8B
Whether using standard or T series control panels, all sounders must be of the polarised type. If non-
polarised sounders are used the control panel will permanently show a fault condition. See table 6 on page 7
for a list of compatible sounder types.
Sounder circuits are monitored for open and short circuit faults by placing a 10K end of line monitoring
resistor across the last device on the circuit.
Sounder circuits must be wired as a single, radial circuit with no spurs or T junctions to enable the
monitoring circuit to work correctly.
A maximum of 1.6 Amps is available for powering sounders with a maximum load of 0.41 Amps on any one
circuit.
POLARISED POLARISED
SOUNDER SOUNDER
+ + + +
+
IN OUT IN OUT
_ _ _ _
10K end of line
S1
resistor
IN OUT IN OUT
-
Some functions of the control panel can be controlled externally from the panel if required. Operation of
these inputs must be restricted by an access level 2 control as defined in EN54-2 These are
abbreviated at the terminals block as follows:
To activate these inputs, the remote 0 Volt (R0V) supply must be connected to the input via a normally open
switch or contact and via a resistance of no greater than 100 ohms.
All of the remote control inputs are non-latching.
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11. Aux 24V DC supply
10B
An auxiliary 24V DC supply is provided to enable local signalling or control of ancillary systems such as door
release controllers.
The terminals for the Aux 24V supply are labelled Aux 24V and ROV. The ROV terminal is the negative
terminal and is the same terminal that should be used to switch the remote control terminals.
It is possible to make the ROV terminal pulsing so that by connecting it to the AL terminal via a remote, volt
free contact, it can be used to pulse the dedicated sounder circuits in response to a signal from another
system for example to give an alert. See programming code 24.
The supply is fitted with an electronic self resetting fuse to protect the control panel’s 24V supply in the
event of a wiring fault.
Any standing load on the Aux 24V supply must be taken into account when calculating battery standby times
as standby time will be significantly affected by even modest standing loads. It is recommended that the
Aux24V output is not used to power standing loads and not used to supply loads of greater than 300
milliamps
Where the Aux 24V supply is used to power electromechanical devices such as relays or door retainers it is
imperative that a suppression diode is fitted across the coil of the electromechanical device to prevent the
generation of high voltage transients back to the control panels power supply.
The Aux 24V DC Supply is not suitable for powering Sigma CP sounder boards, a separate power supply
should be used for these.
Volt free changeover relay contacts are provided for local control and signalling if required. These contacts
are rated for switching signalling circuits only and the maximum ratings listed in table 1 on page 5 should
not be exceeded under any circumstances.
Fault relay
The fault relay is normally energised and will de-energise upon any fault condition including total loss of power.
Fire relay
The fire relay will energise upon activation of a fire condition on any of the zones. The relay will remain
activated until the control panel is reset. This relay will NOT operate upon activation of the remote AL input.
Individual zones can be configured not to operate the Fire relay by setting configuration options E1 to E8.
Repeater panels connect via a 2 core cable to the terminals marked RS485 + and – on the Sigma CP main
control panel PCB. Up to 7 repeaters may be connected and each repeater has terminals for the incoming
cables and outgoing cables. All except the last ancillary board, sounder board or repeater panel connected to
the cable must have the jumper links J2 removed.
Set the repeater address using the DIP switch (SW7); ensure no two repeaters share the same address.
Apply power to main panel first and then all repeater panels. Turn on the Enable Control keyswitch and set
the Write Enable switch to on then briefly press the PROCESSOR RESET button on the main panel. Wait for a
few seconds and the main panel will show the addresses of the repeaters that were found on the display for
instance r1 indicates that a repeater at address 1 has been found.
Turn the write enable switch of, then on again and then press the ENTER button to accept each repeater
that has been found. When all repeaters have been added, set the main panel Write Enable switch to off.
Press the Watchdog reset switch on the main panel.
All repeaters are now configured and the main control panel will report a fault if any repeaters that have
been accepted become faulty or go off line.
For full details of commissioning procedures for repeaters see the Sigma CP Repeater Operation and
maintenance manual.
Please note that repeaters can only be fitted to panels containing boards labeled
S4XXA or above. They will not work with panels containing boards without an alpha
suffix.
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For panels with software version Sigma242.hex or below, the Enable controls keyswitch and Write Enable
switch must both be set to off.
Ancillary boards connect via a 2 core cable to the terminals marked RS485 + and – on the Sigma CP main
control panel PCB. Up to 7 Ancillary boards may be connected and each board has terminals for the
incoming cables and outgoing cables. All except the last ancillary board, sounder board or repeater panel
connected to the cable must have the jumper links J2 removed.
Set the ancillary board address using the DIP switch (SW2); ensure no two ancillary boards share the same
address.
Apply power to main panel and all ancillary boards then turn on the enable keyswitch and set the write
enable slide switch to on, briefly press the PROCESSOR RESET button on the main panel, wait for a few
seconds and the main panel will show the addresses of the ancillary boards that were found on the display
for instance o1 indicates that an ancillary board at address 1 has been found.
Press the ENTER button to accept each ancillary board that has been found.
The control panel will report a fault if any ancillary boards that have been accepted
become faulty or go off line.
For full details of commissioning procedures for ancillary boards see the Sigma CP Ancillary board Operation
and maintenance manual.
Please note that Ancillary boards can only be fitted to panels containing boards
labelled S4XXA or above. They will not work with panels containing boards without
an alpha suffix.
Sounder boards connect via a 2 core cable to the terminals marked RS485 + and – on the Sigma CP main
control panel PCB. Up to 7 Sounder boards may be connected and each board has terminals for the
incoming cables and outgoing cables. All except the last Ancillary board, Sounder board or Repeater
connected to the cable must have the jumper links J2 removed. Sounder boards must be powered from a
separate power supply which is suitably rated to supply the full sounder load that is connected. This can be
up to 4 Amps if all circuits are fully loaded.
Set the Sounder board address using the DIP switch (SW2); ensure no two Sounder boards share the same
address.
Apply power to main panel and all Sounder boards then turn on the enable keyswitch and set the write
enable slide switch to on, briefly press the PROCESSOR RESET button on the main panel, wait for a few
seconds and the main panel will show the addresses of the sounder boards that were found on the display
for instance b1 indicates that a sounder board at address 1 has been found.
Press the ENTER button to accept each Sounder board that has been found.
The control panel will report a sounder fault if any Sounder boards that have been
accepted become faulty, have cable faults on their outputs or go off line.
For full details of commissioning procedures for Sounder boards see the Sigma CP Sounder board Operation
and maintenance manual.
Please note that Sounder boards can only be fitted to panels containing software
SIGMA242.HEX or later.
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16. Panel operation
15B
Under normal conditions, control panels will have only the green, Power On LED lit.
Upon receipt of a fire condition by activation of a detector or call point, the Common Fire indicator will light
and the zonal Fire indicators will flash at around 2Hz.
The fire and local fire relays will also operate and signal any systems to which they are connected.
Any sounders connected to the sounder circuits will operate in common, zonal or 2-stage mode as selected
by configuration options 10 to 12 (see table 8).
The Silence/Sound alarm button can only be operated at access level two which means that the Enable
Control key must be inserted.
To silence the sounders, insert the Enable Control key and press the Silence/Sound alarm button.
When the sounders have been silenced, the Zone Fire LEDs will change from flashing to a steady state.
Pressing the Silence/Sound alarm whilst the control panel is in this silenced condition, will cause the
sounders to operate again.
The sounders can be toggled on and off with the Silence/Sound alarm button as required.
16.4 Reset
27B
To reset the panel, insert the Enable key then press the Reset button.
Removal of a detector from its base or a fault on any of the zone wiring will cause the Fault LED and Zone
Fault LEDs to light indicating the zone in which the fault has occurred.
A fault on the wiring to sounder circuits will cause the Fault and Sounder Fault LEDs to light indicating a fault
on the wiring to the sounder circuits.
Failure of the mains power, disconnection of the standby battery or high impedance in the charging circuit
will cause the Fault and Power Fault LEDs to light indicating an abnormality in the power supply to the
control panel.
The System Fault LED will light if the configuration memory has not been set or has become corrupt.
All LED indicators can be tested at any time by pressing the Lamp Test button. The Enable Control key does
not need to be inserted to test the indicators.
The buzzer can be silenced at any time by pressing the Buzzer Silence button. The enable key does not need
to be inserted to silence the buzzer.
16.10 Disablements
3B
It is possible to disable parts of the system. This may be required if there are works going on in a building
which may cause the fire alarm system to operate in error.
To disable zones, the Enable Control key should be inserted and the mode button pressed until “d” appears
in the first of the two seven segment LED displays. The Select button should then be pressed to select the
number of the zone which is to be disabled in the second of the two seven segment displays. Once the
desired zone is displayed, the enter button should be pressed to confirm the disablement.
The Disable LED will light and the Zone Fault LED will light for each disabled zone.
A disabled zone is shown on the seven segment display as ‘dx.’ (where x is the zone number from 1-8).
If the ‘x’ is flashing, it means that there are activated devices in that zone and re-enabling it will put the
control panel into the fire condition.
The panel should be Reset before enabling any zone with a flashing “dx.” Indication
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Note: The flashing “dx” indicator will only appear on panels with software version sigma_CP 214.hex and
higher produced after July 2012.
To disable sounder outputs, press the mode button to select “db” on the seven segment display. Pressing
enter will disable all sounders and cause the Disable and Sounder Fault LEDs to light.
To activate delays on zones as set in configuration options 31 to 48, press the mode button until Ad appears
on the seven segment LED display. When the enter button is pressed any zones that are set as delayed will
have their alarm outputs delayed by the time set in configuration options 00 to 09.
Fire alarm systems must be tested regularly to ensure that they are functioning correctly. The Sigma CP
range of panels enable the system to be tested single handed by using a test mode. When in test mode,
activation of a fire alarm will be automatically reset after a few seconds to eliminate the need to return to
the control panel to reset after every activation.
Test mode is entered in a similar way to disablements. With the Enable Control key inserted, press the Mode
button until “t” appears in the first of the seven segment displays. Then press the Select button until the
required zone number appears. Pressing the Enter button will cause the Test and Zone Fault LEDs to
illuminate indicating the zones which are in test mode.
Disablements and zone tests are cleared by repeating the sequence that is used to select them, i.e. the "db"
function (for example) toggles between sounders disabled and sounders enabled.
The Sigma CP range of control panels has many configuration options which can be set at the time of
commissioning to suit the requirements of the installation. These options are normally set once and will
rarely need to change. The configuration options are only available at access level 3. To access level 3,
CAREFULLY slide the Write Enable switch (located behind the aperture in the panel plate) to the right
position using a small screwdriver or similar. When the panel is at access level 3, the buzzer will “pip” three
times every few seconds as an indication that it is at this access level.
Configuration options are simple to enter using the codes in table 8 below. When the control panel is at
access level 3, the sub-text of the Mode and Select buttons is used to enter a number using tens (+10) and
units (+1).
When the required code number is displayed, pressing the enter button will cause the dot on the units,
seven segment display to flash. This indicates that a configuration option has been set.
To review which configuration options have been set previously, simply scroll through numbers 1 to 99, A1
to A8, C1 to C8 and E1 to E8 and those with a flashing dot indicate which options have been set.
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ZONE 1 I.S. BARRIER ZONE 1 I.S. BARRIER
OPTION SET OPTION NOT SET
DOT
NO DOT
FLASHING
21* DISABLE FIRE BUZZER Buzzer will not operate on fire condition
22* DISABLE FAULT OUTPUT Fault relay will not operate except upon total power failure
23 DISABLE EARTH FAULT MONITORING Connection of fire alarm wiring will not announce a fault
24 PULSED REMOTE CONTROL OUTPUT Aux 24V supply pulses 1 sec on/1 sec off
25 ENABLE SOUNDERS ON DETECTION CIRCUITS Set as default if panel is two wire “T” series (detectors and call
points on same cables)
26 DISABLE FIRE OUTPUT Fire relay will not operate upon any alarm
27 REMOVE AUX 24 UPON PANEL RESET 24V supply switches off for about 5 seconds when panel is reset
28 INDICATE CALL POINT ACTIVATION Activation of a call point with a 270R resistance fitted is
indicated by a flashing zone indicator and “Pu” on the 7
segment display. Activation of a detector will be indicated by a
steady zone indicator and nothing on the 7 segment display.
29 DO NOT RE-SOUND ALARMS FROM ANOTHER ZONE Silenced sounders will not re-sound upon further zone
activations
2A TREAT CALL POINT ALARM AS DETECTOR ALARM When this option is active, the panel does not distinguish
between detector alarms and call point alarms (v215 onward)
31 ZONE 1 ALARM FROM DETECTOR DELAYED Sounder outputs will be delayed by time set at options
32 ZONE 2 ALARM FROM DETECTOR DELAYED 0-9 when selected zone(s) triggered by detector only.
33 ZONE 3 ALARM FROM DETECTOR DELAYED Note: Access level 2 function Ad must be set for this to take
34 ZONE 4 ALARM FROM DETECTOR DELAYED effect.
35 ZONE 5 ALARM FROM DETECTOR DELAYED
36 ZONE 6 ALARM FROM DETECTOR DELAYED
37 ZONE 7 ALARM FROM DETECTOR DELAYED
38 ZONE 8 ALARM FROM DETECTOR DELAYED
41 ZONE 1 ALARM FROM CALL POINT DELAYED Sounder outputs will be delayed by time set at options
42 ZONE 2 ALARM FROM CALL POINT DELAYED 0-9 when selected zone(s) triggered by call point only.
43 ZONE 3 ALARM FROM CALL POINT DELAYED Note access level 2 function Ad must be set for this to take
44 ZONE 4 ALARM FROM CALL POINT DELAYED effect.
45 ZONE 5 ALARM FROM CALL POINT DELAYED
46 ZONE 6 ALARM FROM CALL POINT DELAYED
47 ZONE 7 ALARM FROM CALL POINT DELAYED
48 ZONE 8 ALARM FROM CALL POINT DELAYED
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61 CONFIGURE Z1 FOR I.S BARRIER Detection threshold changed for use with IS barrier
62 CONFIGURE Z2 FOR I.S BARRIER
63 CONFIGURE Z3 FOR I.S BARRIER
64 CONFIGURE Z4 FOR I.S BARRIER
65 CONFIGURE Z5 FOR I.S BARRIER
66 CONFIGURE Z6 FOR I.S BARRIER
67 CONFIGURE Z7 FOR I.S BARRIER
68 CONFIGURE Z8 FOR I.S BARRIER
91 ZONE 1 DOES NOT SOUND ALARMS Prevents the zone from operating the two common sounder
92 ZONE 2 DOES NOT SOUND ALARMS outputs.
93 ZONE 3 DOES NOT SOUND ALARMS
94 ZONE 4 DOES NOT SOUND ALARMS
95 ZONE 5 DOES NOT SOUND ALARMS
96 ZONE 6 DOES NOT SOUND ALARMS
97 ZONE 7 DOES NOT SOUND ALARMS
98 ZONE 8 DOES NOT SOUND ALARMS
A1* ZONE 1 ANY ALARM DELAYED Zone needs to be triggered for 30 seconds continuously
A2* ZONE 2 ANY ALARM DELAYED before an alarm is generated.
A3* ZONE 3 ANY ALARM DELAYED
A4* ZONE 4 ANY ALARM DELAYED
A5* ZONE 5 ANY ALARM DELAYED
A6* ZONE 6 ANY ALARM DELAYED
A7* ZONE 7 ANY ALARM DELAYED
A8* ZONE 8 ANY ALARM DELAYED
C1 ZONE 1 SOUNDERS INHIBITED Enables individual zones to be configured not to operate zonal
C2 ZONE 2 SOUNDERS INHIBITED sounders.
C3 ZONE 3 SOUNDERS INHIBITED On 2 wire “T” series panels this enables individual zones to be
C4 ZONE 4 SOUNDERS INHIBITED configured for use with conventional (non 2-wire) detector
C5 ZONE 5 SOUNDERS INHIBITED bases.
C6 ZONE 6 SOUNDERS INHIBITED
C7 ZONE 7 SOUNDERS INHIBITED
C8 ZONE 8 SOUNDERS INHIBITED SOFTWARE VERSIONS SIGMA242.HEX and above only
E1* ZONE 1 WILL NOT OPERTATE FIRE RELAY Enables individual zones to be selected to not operate the fire
E2* ZONE 2 WILL NOT OPERTATE FIRE RELAY relay. This is sometimes combined with the non-latching
E3* ZONE 3 WILL NOT OPERTATE FIRE RELAY function to prevent ring around on interconnected panels.
E4* ZONE 4 WILL NOT OPERTATE FIRE RELAY
E5* ZONE 5 WILL NOT OPERTATE FIRE RELAY
E6* ZONE 6 WILL NOT OPERTATE FIRE RELAY
E7* ZONE 7 WILL NOT OPERTATE FIRE RELAY
E8* ZONE 8 WILL NOT OPERTATE FIRE RELAY SOFTWARE VERSIONS SIGMA242.HEX and above only
N OTE: Setting the options marked w ith asterisks does not com ply w ith EN 54-2
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Once the required configuration options have been set, the Write enable switch must be returned to its
normal position to the right. The General fault indicator will remain lit if the Write enable switch is not turned
off.
If for any reason the microprocessor in the control panel fails to carry out its operation correctly it will
attempt to restart itself. This process is called a “watchdog” and the control panel must record and indicate
these events.
If a watchdog event occurs, the control panel will show the FAULT and SYSTEM FAULT LEDs on the front
panel, the CPU fault LED inside the panel.
This fault can only be cleared by pressing the WATCHDOG RESET button on the PCB inside the control
panel. The control panel buzzer can not be silenced and will continue to sound until the watchdog activation
is reset.
Once started, the microprocessor controlling the panel should continue to run continuously without
interruption. If the microprocessor fails to run correctly it can be reset by pressing the PROCESSOR RESET
button on the PCB inside the control panel.
This should not normally be necessary but should be done as a matter of course if the system is behaving
abnormally. The system should resume normal operation within a couple of seconds of pressing the
processor reset button.
To assist in identifying fault conditions which are not detailed on the front of the control panel, a number of
internal indicators are visible with the front cover removed as follows:
Indicates that the 230V AC supply is not present and the system is running on standby batteries.
If there is not a power cut, check the panels mains fuse.
Indicates that the standby battery has become disconnected or that the charging circuit of the control panel
has a high resistance or has failed. Check that both batteries are connected and linked together. Test
battery. Disconnect battery and ensure that 28 Volts can be measured on battery charger leads.
Indicates that the central processor unit has failed to correctly execute code and has been re-started by the
system watchdog. The watchdog reset switch must be pressed to clear the CPU fault condition.
Press watchdog reset. If system does not return to normal then the panel is probably damaged and needs
the circuit board replacing. (See maintenance section).
The Aux 24V and R0V terminals provide a 500 milliamp, 24V DC power supply for power fire alarm ancillary
equipment. This LED indicates that fuse protecting the R0V output has operated and the rating of this output
has been exceeded. The fuse is a self resetting type and the supply will resume when the fault condition is
removed.
Illuminates when the system is running on batteries and the battery voltage is lower than 21V +/-2% (the
minimum battery voltage).
Indicates that part of the system wiring is connected to earth. Remove all system wiring and re-connect
cables one at a time until the earth fault returns. This will indicate which cable the earth fault is present on.
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20.7 Sys fuse fault
45B
Indicates that the total power rating of the power supply has been exceeded and that the system fuse has
come into operation. Remove and review all loads and re-connect one at a time until over rated circuit trips
fuse to identify troublesome circuit.
Indicates a short or open circuit on sounder outputs. Remove wiring and refit end of line resistors. Check
sounder circuit wiring.
Indicates that communication has been lost with a repeater panel or Ancillary board. Check for comms fault
at all repeaters and ancillary boards to identify the source of the problem.
20B
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21. Power supply
The control panel requires a 230V (+10%/-15%), 50/60Hz, AC mains power supply which connects to the
fused terminal block labelled “230V”.
The fused terminal block contains a 20mm, F1.6A L250V fuse which should only be replaced with a similar
type.
The output voltage of the power supply is 28V DC +/- 2V and the total current rating including a maximum
0.7A for battery charging is 3 Amps. Fuse F12 mounted on the circuit board is a self-resetting electronic fuse
rated at 4 Amps.
The incoming mains cable should be routed well away from other lower voltage wiring by a distance of at
least 50mm.
Mains wiring should include an earth conductor which is securely bonded to the building earth and should
enter the enclosure as close as possible to the mains terminal block. Mains wires should be kept very short
inside the enclosure and secured together close to the mains terminal block with a cable tie.
The control panel can accept sealed lead acid rechargeable batteries of up to 7Ah maximum capacity (see
table 2 for battery size required for each model).
The maximum current drawn from the batteries when the main power source is disconnected is 3 Amps.
Battery leads are supplied wired to the PCB along with a link to connect the two batteries in series. The PCB
is fitted with a 20mm, 3.15A T1 glass fuse (F13) in the battery charging circuit which must only be replaced
with one of the same type.
It is most important that the polarity of the batteries is carefully observed when connecting.
When the batteries are discharged to a level at which a low battery indication is given, the BATT FAIL
indicator will also be lit.
MAINS
TERMINAL KEEP MAINS WIRES AS SHORT AS POSSIBLE
AND SECURE ALL THREE WIRES CLOSE TO
THE TERMINAL BLOCK WITH A CABLE TIE
N N
E
L L
+ - + -
BLACK BATTERY
LEAD TO -
GREY LINK TERMINAL
1B
RED BATTERY
LEAD TO +
TERMINAL
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22. Maintenance
Sigma CP control panels do not require any specific maintenance but should the control panel become dirty
it can be wiped over with a damp cloth and should then be dried with a dry, lint free cloth. Detergents or
solvents should not be used to clean the panel and care must be taken that water does not enter the
enclosure.
The control panel contains sealed lead acid batteries to provide standby power in the event of a mains
failure.
These batteries have a life expectancy of around 4 years. It is recommended that these batteries be tested
in accordance with the battery manufacturer’s recommendations annually to determine their suitability for
continued standby applications.
Routine testing of the fire alarm system in accordance with BS5839: Part 1: 2002 will identify any
malfunction of the control panel and any malfunction should be reported to the fire alarm maintenance
company immediately.
Should the control panel become faulty the complete electronic assembly can be replaced.
To do this, any configured options should be noted then both mains and battery power should be removed
before the work is started.
The field wiring should be carefully labelled and removed from the terminals.
The PCB can now be taken out of the panel by removing the 2 holding the plate in position.
Fitting the new PCB is the reverse of the procedure for removing the board.
All Sigma CP control panels are supplied with a zone designation label onto which zone designations can be
written.
This enables each zone to be given a text description allowing easier identification of any zones showing an
abnormal condition.
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24. Record of Configuration
23B
Use the table below to record the configuration codes that have been set on the control panel for future
reference. Place a tick in the grey band for any configuration options that are set.
It is recommended that a copy of this table is left with the control panel under the supervision of the person
responsible for the fire detection system.
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CODE FUNCTION COMMENTS SET
71* ZONE 1 SHORT CIRCUIT INDICATES ALARM Changes the trigger threshold of the
72* ZONE 2 SHORT CIRCUIT INDICATES ALARM zone so that the control panel can be
73* ZONE 3 SHORT CIRCUIT INDICATES ALARM used on older systems that had no short
74* ZONE 4 SHORT CIRCUIT INDICATES ALARM circuit monitoring.
75* ZONE 5 SHORT CIRCUIT INDICATES ALARM
76* ZONE 6 SHORT CIRCUIT INDICATES ALARM
77* ZONE 7 SHORT CIRCUIT INDICATES ALARM
78* ZONE 8 SHORT CIRCUIT INDICATES ALARM
91 ZONE 1 DOES NOT SOUND ALARMS Prevents the zone from operating the two common sounder
92 ZONE 2 DOES NOT SOUND ALARMS outputs
93 ZONE 3 DOES NOT SOUND ALARMS
94 ZONE 4 DOES NOT SOUND ALARMS
95 ZONE 5 DOES NOT SOUND ALARMS
96 ZONE 6 DOES NOT SOUND ALARMS
97 ZONE 7 DOES NOT SOUND ALARMS
98 ZONE 8 DOES NOT SOUND ALARMS
99
A1* ZONE 1 ANY ALARM DELAYED Zone needs to be triggered for 30 seconds continuously
A2* ZONE 2 ANY ALARM DELAYED before an alarm is generated.
A3* ZONE 3 ANY ALARM DELAYED
A4* ZONE 4 ANY ALARM DELAYED
A5* ZONE 5 ANY ALARM DELAYED
A6* ZONE 6 ANY ALARM DELAYED
A7* ZONE 7 ANY ALARM DELAYED
A8* ZONE 8 ANY ALARM DELAYED
C1 ZONE 1 SOUNDERS INHIBITED Enables individual zones to be configured not to operate zonal
C2 ZONE 2 SOUNDERS INHIBITED sounders.
C3 ZONE 3 SOUNDERS INHIBITED On 2 wire “T” series panels this enables individual zones to be
C4 ZONE 4 SOUNDERS INHIBITED configured for use with conventional (non-savwire) detector
C5 ZONE 5 SOUNDERS INHIBITED bases.
C6 ZONE 6 SOUNDERS INHIBITED
C7 ZONE 7 SOUNDERS INHIBITED
C8 ZONE 8 SOUNDERS INHIBITED SOFTWARE VERSIONS SIGMA242.HEX hex and above only
E1* ZONE 1 WILL NOT OPERATE FIRE RELAY Enables individual zones to be selected to not operate the fire
E2* ZONE 2 WILL NOT OPERATE FIRE RELAY relay. This is sometimes combined with the non-latching function
E3* ZONE 3 WILL NOT OPERATE FIRE RELAY to prevent ring around on interconnected panels.
E4* ZONE 4 WILL NOT OPERATE FIRE RELAY
E5* ZONE 5 WILL NOT OPERATE FIRE RELAY
E6* ZONE 6 WILL NOT OPERATE FIRE RELAY
E7* ZONE 7 WILL NOT OPERATE FIRE RELAY
E8* ZONE 8 WILL NOT OPERATE FIRE RELAY SOFTWARE VERSIONS SIGMA242.HEX hex and above only
N OTE: Setting the options marked w ith asterisks does not com ply w ith EN 54-2
Man-1078_Sigma_CP_24
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