ZEF004473803

Source type
ABSOCODER CONVERTER
NCV-20NBPMP
NCV-20NGPMP
NCV-20NBPLW
NCV-20NGPLW
NCV-20NBPLY
NCV-20NGPLY

Specifications & Instruction Manual

Applicable sensor:
MRE-32SP062
MRE-G[ ]SP062
VLS-256PWB
VLS-512PWB
VLS-1024PW
VLS-512PYB
VLS-1024PBY
VLS-2048PY
 GENERAL SAFETY RULES 3. Transport
(Please read this safety guide carefully before operation) CAUTION
Thank you very much for purchasing our product. - Do not hold the cable or shaft of ABSOCODER sensor during
Before operating this product, be sure to carefully read this manual so that transport; otherwise, it will cause injury or controller malfunction.
you may fully understand the product, safety instructions and precautions.

- Please submit this manual to the operators actually involved in operation.

- Please keep this manual in a handy place. 4. Installation
Signal Words CAUTION
Safety precautions in this guide are classified into DANGER and CAUTION.
- Do not step on the ABSOCODER sensor or place heavy objects on
Symbol Meaning the controller; otherwise, it will cause injury.
Incorrect handling may cause a hazardous situation that - Do not block the exhaust port or allow any foreign matter to enter
DANGER will result in death or serious injury. the controller; otherwise, it will cause fire or unit failure.
Incorrect handling may cause a hazardous situation that - Be sure to secure the controller and ABSOCODER sensor with the
CAUTION
will result in moderate injury or physical damage. provided brackets; otherwise, it may cause malfunction, injury, or
drop.
CAUTION
Instructions accompanied by a symbol may also result in serious
damage or injury. Be sure to follow the all instructions accompanied by the symbol. - Be sure to secure the specified distance between the main body
and the control panel or other equipments; otherwise, it may cause
Graphic Symbols malfunction.
Symbol Meaning
Indicates prohibited items. 5. Wiring
DANGER
Indicates items that must be performed to.
- Be sure to secure the terminal block firmly; otherwise, it may have
risk of fire.
Application Limitation
This product is not designed to be used under any situation affecting human - Be sure to mount the terminal cover provided with the controller,
life. When you are considering to use this product for special purposes such as before supplying the power, starting operation after the installation,
medical equipment, aerospace equipment, nuclear power control systems, and wiring; otherwise, it may cause electric shock.
traffic systems, and etc., please consult with NSD.

This product is designed to be used under the industrial environments categorized CAUTION
in Class A device.
The supplier and user may be required to take appropriate measures. - Be sure to keep the sensor cable, control cable, and communication
cable at least 300 mm away from the main circuit and power line;
otherwise it may cause injury or malfunction.

1. Handling Precautions - Be sure to connect all cables correctly; otherwise, it may cause injury
or controller malfunction.
DANGER
- Be sure to firmly connect the external I/O connectors and sensor
- Do not touch components inside of the controller; connectors; otherwise, it may cause incorrect inputs and outputs or
otherwise, it will cause electric shock. injury.
- Do not damage the cable by applying excessive load, placing 6. Operation
heavy objects on it, or clamping;
otherwise, it will cause electric shock or fire. CAUTION
- Turn the power supply OFF before wiring, transporting, and inspecting - Do not change the controller's function switch settings during the
the controller; otherwise, it may cause electric shock. operation; otherwise, it will cause injury.
- Do not approach the machine after instantaneous power failure
- Provide an external safety circuit so that the entire system has been recovered.
functions safely even when the controller is faulty. Doing so may result in injury if the machine starts abruptly, it will
cause injury.
- Connect the grounding terminal of the controller;
otherwise, it may case electric shock or malfunction. - Be sure to check that the power supply specifications are correct;
otherwise, it may caused controller failure.
- Be sure to provide an external emergency stop circuit so that
CAUTION operation can be stopped with power supply terminated immediately.
- Be sure to conduct independent trial runs for the controller before
- Do not use the controller in the following places; water splashes, mounting the controller to the machine;
the atmosphere of the corrosion, the atmosphere of the flammable otherwise, it may cause injury.
vapor, and the side of the combustibility. - When an error occur, be sure to eliminate the cause, ensure
Doing so may result in fire or the controller may become faulty. safety, and reset the error before restarting operation;
otherwise, it may cause injury.
- Be sure to use the controller and the ABSOCODER sensor in the
environment designated by the general specifications in the manual.
Failure to do so may result in electric shock, fire, malfunction or unit 7. Maintenance And Inspection
failure.
- Be sure to use the specified combination of the ABSOCODER CAUTION
sensor, controller and sensor cable; otherwise, it may cause fire or
controller malfunction. - Do not disassemble, remodel, or repair the unit;
otherwise, it will cause electric shock, fire, and unit malfunction.
2. Storage - The capacitor of the power line deteriorates through prolonged use.
We recommended that the capacitor be replaced every five years
CAUTION to prevent secondary damage.
- Do not store the controller in a place exposed to water, or toxic
gas and liquid. 8. Disposal
- Be sure to store the controller in designed temperature and humidity CAUTION
range, and do not exposed to direct sunlight.
- Be sure to consult with NSD when the controller is stored for long - Be sure to handle the controller as industrial waste while
periods. disposing of it.
 < NCV-20NB (G) PMP (LW, LY) Specifications & Instruction Manual Revision History>
* The Document No. appears at the upper right of this manual's cover page.
Document No. Date Revision Description
ZEF004473800 11, Apr., 2006 1st Edition
Japanese document: ZEF004473003
ZEF004473801 28, Mar., 2008 2nd Edition
Japanese document: ZEF004473004
Modification
Front cover, CE marking
3-1. Converter Specification (2) Performance Specification
5-3-2. EMC Directive and Standards
5-3-3. Measures for EMC Compliance
6-2. Power Supply Connection
6-3. Input / Output Connector Connection
ZEF004473802 17, Sep., 2013 3rd Edition
Japanese document: ZEF004473005
Addition
Compliance with KC mark (Korea Certification Mark)
ZEF004473803 25, Feb., 2016 4th Edition
Japanese document: ZEF004473006
Modification
GENERAL SAFETY RULES
2. CONFIGURATION
4-2. DIMENSIONS (ABSOCODER Sensor)
CONTENTS
1. SUMMARY................................................................................................................................................................ 1
1-1. Features ............................................................................................................................................................. 1
2. CONFIGURATION .................................................................................................................................................... 2
2-1. Model List ........................................................................................................................................................... 3
3. SPECIFICATIONS .................................................................................................................................................... 4
3-1. Converter Specifications .................................................................................................................................... 4
3-2. ABSOCODER Sensor Specifications ................................................................................................................. 6
3-3. Extension Sensor Cable Specification ............................................................................................................... 8
4. DIMENSIONS ........................................................................................................................................................... 9
4-1. Converter ........................................................................................................................................................... 9
4-2. ABSOCODER Sensor ......................................................................................................................................10
4-3. Extension Sensor Cable ..................................................................................................................................14
4-4. Interconnecting Sensor Cable .........................................................................................................................14
5. INSTALLATION .......................................................................................................................................................15
5-1. Converter Installation Conditions and Precautions ..........................................................................................15
5-2. ABSOCODER Sensor Installation Conditions and Precautions ......................................................................16
5-3. CE Marking ......................................................................................................................................................21
5-3-1. EMC Directives .........................................................................................................................................21
5-3-2. EMC Directive and Standards ...................................................................................................................21
5-3-3. Measures for EMC Compliance ................................................................................................................21
6. WIRING...................................................................................................................................................................22
6-1. Connection between Converter and ABSOCODER Sensor ............................................................................22
6-2. Power Supply Connection................................................................................................................................23
6-3. Input / Output Connector Connection ..............................................................................................................24
7. NOMENCLATURE ..................................................................................................................................................26
7-1. Part Identification .............................................................................................................................................26
7-2. Function and Name of Display and Setting Area .............................................................................................26
8. OPERATION ...........................................................................................................................................................27
8-1. Operation Sequence ........................................................................................................................................27
8-2. Position Data "Increase Direction" Setting .......................................................................................................28
8-3. Position Data Reading Setting .........................................................................................................................29
(1) Function setting switch list .............................................................................................................................29
(2) Position data reading by LP output ................................................................................................................30
(3) Position data reading by HOLD (HD) input ....................................................................................................32
8-4. Current Position Setting ...................................................................................................................................33
(1) For binary code output ...................................................................................................................................33
(2) For gray binary code output ...........................................................................................................................34
9. MAINTENANCE and INSPECTIONS .....................................................................................................................35
9-1. Inspection .........................................................................................................................................................35
9-2. Troubleshooting ...............................................................................................................................................35
1. SUMMARY
The NCV-20 converter (Source type) can be combined with a multi-turn type ABSOCODER “MRE sensor “or
linear type ABSOCODER “VLS sensor” to convert the detected absolute position data to binary or gray binary
values for output.
All models comply with both UL (UL508) and CE (EMC Directive) standards, and therefore presents no
problems when used in equipment which is to be exported abroad.

1-1. Features
(1) High reliability
An absolute position detection format ensures accurate position detection even if a power interruption or
unexpected noise condition occurs. An origin returning operation is not required.

(2) Superior durability

NSD's original ABSOCODER is used as the position sensor which features a no-contact construction for
excellent durability. This sensor offers problem-free operation, even in environments where it is exposed to
vibration, impact shocks, extreme temperatures, oil, and dust.

(3) Compact design

The unit's outside dimensions (39(W) x 155(H) x 93(D)) were miniaturized, and the shape of case is a
bookshelf type. DIN rail mounting is also possible.

(4) Current position setting function

The position data can be changed as desired by using the control panel's rotary switch.
The current position setting is also quick and easy at installation.

(5) A full array of position data reading formats

a) Latch pulse format
Position data reading occurs by synchronizing with the latch pulse signal output from the converter. A
position data update cycle (0.2ms, 0.4ms, 12.8ms, 25.6ms, 51.2ms) which is suitable for the host
controller's reading speed can be selected.
b) HOLD signal format
A HOLD signal is input to the converter to stop position data output updates, with the position data then
being read.
This desired HOLD signal format can be selected from two types:
- A transparent format in which data reading occurs while the HOLD signal is ON.
- A PC synchro format in which position data updates occurs at the HOLD signal's leading or trailing
edge.

(6) Error detection function

A sensor disconnected error (SE) is indicated by a monitor “LED”. A status output is also provided, enabling
reading to a host controller (PLC, etc.).

(7) No problems for oversea use

I / O circuit is “Source type”; moreover, the NCV-20 Series complies with both UL (UL508) and CE (EMC
Directive) standards, and therefore presents no problems when used in equipment which is to be exported
abroad.

(8) Compliance with KC mark (Korea Certification Mark)

The NCV-20 Series complies with KC mark. (It is only certified under the Radio Waves Act of South Korea.)
KC mark is the same directives as CE marking. For more details, refer to "5-3. CE Marking”.

1
2. CONFIGURATION PLC

1) Converter Connector at cable side

(It is included in the
converter.) External output signal
MR-25F：Soldered socket -Position data
MR-25L：Cover -Latch pulse
Power Connectors are manufactured -Sensor disconnected
Supply by Honda Tsushin Kogyo Co.,
+24V LTD.
0V

Ground External input signal

-HOLD

3) Interconnecting sensor cable

2) ABSOCODER sensor
4) Extension sensor cable
4P-S-0102-[m] MRE-32SP062**C
4P-RBT-0102-[m] MRE-G[ ]SP062F*C

4P-S-0102-[m] 4P-S-0102-[m]
4P-RBT-0102-[m] 4P-RBT-0102-[m]
4P-RBT-0103-[m] VLS-256PWB/512PWB/1024PW
VLS-512PYB/1024PYB/2048PY

4P-S-0102-[m]
4P-RBT-0103-[m]
4P-RBT-0102-[m]

7) L type flange-mount fixture

5) Servo-mount fixture 6) Reinforced servo-mount fixture (Option)
(Accessory) (Option)

2
2-1. Model List
(1) Multi-turn type ABSOCODER
No. Items Models Descriptions
1) Converter NCV-20NBPMP Position data binary output
NCV-20NGPMP Position data gray binary output
2) ABSOCODER MRE-32SP062SAC Total number of turns: 32, Servo-mount type, Flat shaft
sensor shape
MRE-32SP062SBC Total number of turns: 32, Servo-mount type, Key way
shaft shape
MRE-32SP062FAC Total number of turns: 32, Flange-mount type, Flat shaft
shape
MRE-32SP062FBC Total number of turns: 32, Flange-mount type, Key
way shaft shape
[ ] :Total number of turns: 64, 128, 160, 256, 320
MRE-G[ ]SP062FAC
Flange-mount type, Flat shaft shape
[ ] :Total number of turns: 64, 128, 160, 256, 320
MRE-G[ ]SP062FBC
Flange-mount type, Key way shaft shape
4) Extension Standard cable [ ]:
sensor cable Cable length(m) 2, 3, 5, 8, 10, 15, 20, 25, 30, 35, 40, 45, 50
4P-S-0102-[ ]
(If a cable length is 50m or more, it can be selected by
each 10m.)
Robotic cable [ ]:
Cable length(m) 2, 3, 5, 8, 10, 15, 20, 25, 30, 35, 40, 45, 50
4P-RBT-0102-[ ]
(If a cable length is 50m or more, it can be selected by
each 10m.)
5) Servo-mount
SB-01 Included with MRE-32SP062SAC, MRE-32SP062SBC
fixture
6) Reinforced
SH-01 Option for MRE-32SP062SAC, MRE-32SP062SBC
servo-mount fixture
7) L type flange RB-01 Option for flange-mount and reinforced servo-mount fixture

2) Linear type ABSOCODER

No. Items Models Descriptions
1) Converter Position data binary output
NCV-20NBPLW Applicable sensor:
VLS-256PWB,VLS-512PWB,VLS-1024PW
Position data gray binary output
NCV-20NGPLW
Applicable sensor: VLS-256PWB,VLS-512PWB,VLS-1024PW
Position data binary output
NCV-20NBPLY
Applicable sensor: VLS-512PYB,VLS-1024PYB,VLS-2048PY
Position data gray binary output
NCV-20NGPLY
Applicable sensor: VLS-512PYB,VLS-1024PYB,VLS-2048PY
2) ABSOCODER VLS-256PW[ ]B [ ]: Detection stroke (Max. 256mm)
sensor (Linear type) [ ]: Detection stroke (Max. 512mm)
VLS-512PW[ ]B
VLS-1024PW[ ] [ ]: Detection stroke (Max. 1024mm)
VLS-512PY[ ]B [ ]: Detection stroke (Max. 512mm)
VLS-1024PY[ ]B [ ]: Detection stroke (Max. 1024mm)
VLS-2048PY[ ] [ ]: Detection stroke (Max. 2048mm)
3) Interconnecting 4P-RBT-0103-[ ] Robotic cable for linear type ABSOCODER,
sensor cable Cable length: cable length(m) 4, 6, 8, 10, 15, 20, 25, 30, 35, 40
(If a cable length is 40m or more, it can be selected by each 10m.)
4) Extension 4P-S-0102-[ ] Standard cable [ ]:
sensor cable Cable length(m) 2, 3, 5, 8, 10, 15, 20, 25, 30, 35, 40, 45, 50
(If a cable length is 50m or more, it can be selected by each 10m.)
Robotic cable [ ]:
Cable length(m) 2, 3, 5, 8, 10, 15, 20, 25, 30, 35, 40, 45, 50
4P-RBT-0102-[ ]
(If a cable length is 50m or more, it can be selected by each
10m.)

3
3. SPECIFICATIONS
3-1. Converter Specifications
(1) General Specification
Items Specifications
Power supply voltage 24VDCV±10% (including ripple)
Power consumption 7W or less
20 M-Ohms or more between external DC power terminals and ground
Insulation resistance
(by 500 VDC insulation resistance tester)
500 VAC, 60Hz for 1 minute between external DC power terminal and
Withstand voltage
ground
2
20m/s 10 to 500Hz, 10cycles of 5 minutes in 3 directions,
Vibration resistance
conforms to JIS C 0040 standard
0 to +55°C (No freezing)
Ambient operating temperature
(Surrounding air temperature rating of 55°C maximum)
Ambient operating humidity 20 to 90 %RH (No condensation)
Ambient operating environment Free from corrosive gases and excessive dust
Ambient storage temperature -10 to +70°C
Grounding Must be securely grounded (ground resistance of 100 ohm or less)
Construction Book-shelf type within enclosure, DIN rail mountable
Outside dimension (mm) 39(W) x 155(H) x 93(D) Refer to dimensions for details.
Mass Approx. 0.4kg

(2) Performance Specification

Items Specifications
NCV-20N NCV-20N NCV-20N NCV-20N NCV-20N NCV-20N
Converter model
BPMP GPMP BPLW GPLW BPLY GPLY
MRE-32SP062 VLS-256PWB VLS-512PYB
Applicable sensor MRE-G[ ]SP062 VLS-512PWB VLS-1024PYB
([ ]: 64/128/160/256/320) VLS-1024PW VLS-2048PY
16 15 16
Total number of divisions 65536 (2 ) 32768 (2 ) 65536 (2 )
Binary: Gray: Binary: Gray: Binary: Gray:
Output code
16-bit 16-bit 15-bit 15-bit 16-bit 16-bit
Number of detection axes 1
Position data sampling time 0.2ms
Latch pulse (Position data reading timing): 1 point
Status output signal Sensor disconnected error (Positive logic): 1 point
Sensor disconnected error (Negative logic): 1 point
Input signals Position data hold signal: 1 point
Control panel function
Current position setting
Position data increase/decrease direction setting (CW / CCW) :1point
0.2ms
High-speed
0.4ms
Switch Position data
12.8ms
(on rear face of product) update cycle
Low-speed 25.6ms
51.2ms
HOLD signal Transparent format
format PC synchro format
Display of sensor disconnected error, Display of position data,
Monitor LED
Display of latch pulse output, Display of HOLD signal format status
UL508
CSA C22.2 No.142 (Compliance with UL standard)
Applicable standard
CE marking (EMC directive)
KC mark (Korea Certification Mark)

4
(3) Input / Output Specification
Items Specifications

Input signals HD(Position data HOLD): 1 point

Input circuit DC input, photo-coupler isolation
Input logic Positive logic
Input Rated input voltage 24VDC±10%
Rated input current 10mA(24VDC)
ON voltage 10VDC or more
OFF voltage 4VDC or less
D0 to D15 (Position data): 16 points
Output signals LP (Latch pulse: position data reading timing): 1 point
SE , SE(Sensor disconnected error): 2 points
Output circuit Isolation, photo-coupler open emitter output
D0 to D15, LP, SE: positive logic
Output logic
Output SE :negative logic
Rated load voltage 24VDC(30VDC max.)
D0 to D15, LP:10mA / point
Max. load current
SE , SE: 100mA / point
Max. voltage drop
0.8V
when ON

5
3-2. ABSOCODER Sensor Specifications

MRE-32SP062, MRE-G[ ]SP062

Items Specifications
MRE-G[ ]SP062
Sensor model MRE-32SP062
[64] [128] [160] [256] [320]
Total number of turns 32 64 128 160 256 320
Divisions/Turn 2048 1024 512 409.6 256 204.8
16
Total number of divisions 65536(2 )
Mass 1.5 kg 1kg
2° 4° 5° 8° 10°
Linearity error 1° Max.
Max. Max. Max. Max. Max.
-6 2 -6 2
2 6.7 x 10 kg-m 3.9 x 10 kg-m
Moment of inertia GD /4(J) -5 2 -5 2
(6.8 x 10 kgf-cm-s ) (4.0 x 10 kgf-cm-s )
-2
Starting torque 4.9 x 10 N-m or less (0.5 kgf-cm or less)
Permissible Radial 98N (10 kgf)
shaft load Thrust 49N (5 kgf)
Permissible mechanical
3600 r/min
speed
4 4
Bearing life 3.0 x 10 h (at 3600 r/min) 1.5 x 10 h (at 3600 r/min)
Ambient Operating -20 to +60°C
temperature Storage -30 to +90°C
2 2
2.0 x 10 m/s (20G) 200Hz, up/down 4 h, forward/back 2 h,
Vibration resistance
conforms to JIS D 1601 standard
3 2
4.9 x 10 m/s (500G) 0.5 ms, up/down/forward/back X 3 times each,
Shock resistance
conforms to JIS C 5026 standard
Protection rating IP52F, conforms to JEM 1030 standard
Standard
Max. sensor 100 m (4P-S)
cable
cable length
Robotic cable 40m (4P-RBT) 70m (4P-RBT)
Interconnecting sensor cable 2m

6
VLS-[ ]PW
Specifications
Items
VLS-256PWB VLS-512PWB VLS-1024PW
Absolute detection range (mm) 256 512 1024
Resolution (μm) 7.8125 15.625 31.25
Total number of divisions 32768
Linearity error (mm) 0.05 Max 0.1 Max 0.4 Max
Mass (kg) 0.9 1.7 8.0
Sliding resistance (N) 4.9 or less 7.8 or less 19.6 or less
Permissible mechanical speed (mm/s) 1000 1000 2000
Permissible mechanical parallelism (mm) ±0.1
Ambient Operating (°C) -20 to +60
temperature Storage (°C) -30 to +90
2
110 m/s (11.3G) 66.7Hz, up/down 4h, forward/back/left/right 2h
Vibration resistance
each, conforms to JIS D1601 standard
2
2000 m/s (100G), up/down x 3 times each,
Shock resistance
conforms to JIS C5026 standard
Protection rating IP40 conforms to JEM 1030 standard
Max. sensor Standard cable (m) 100 (4P-S)
cable length Robotic cable (m) 50(4P-RBT)

VLS-[ ]PY
Specifications
Items
VLS-512PYB VLS-1024PYB VLS-2048PY
Absolute detection range (mm) 512 1024 2048
Resolution (μm) 7.8125 15.625 31.25
Total number of divisions 65536
Linearity error (mm) 0.1 Max 0.2 Max 0.5 Max
Mass (kg) 1.0 2.1 10.2
Sliding resistance (N) 4.9 or less 7.8 or less 19.6 or less
Permissible mechanical speed (mm/s) 250 500 1000
Permissible mechanical parallelism (mm) ±0.1
Ambient Operating (°C) -20 to +60
temperature Storage (°C) -30 to +90
2
110 m/s (11.3G) 66.7Hz, up/down 4h, forward/back/left/right 2h
Vibration resistance
each, conforms to JIS D1601 standard
2
1000 m/s (100G), up/down x 3 times each,
Shock resistance
conforms to JIS C5026 standard
Protection rating IP40 conforms to JEM 1030 standard
Max. sensor Standard cable (m) 60 (4P-S)
cable length Robotic cable (m) 30(4P-RBT)

7
3-3. Extension Sensor Cable Specification
Items Specifications
Model code 4P-S 4P-RBT
Cable type Standard cable Robotic cable
Diameter φ8
Ambient Operating -5 to +60°C -5 to +60°C
temperature Storage -5 to +60°C -10 to +60°C
Insulator Irradiated, formed polyethylene ETFE plastic
Sheath Vinyl chloride mixture
Color of sheath Gray Black
Usable with moving machine
Advantage Extensible for long distances member thanks to excellent
flexibility
[Remark]
Contact your NSD representative when the extension cable combines the standard cable (4P-S) and the
robotic cable (4P-RBT).

8
4. DIMENSIONS
4-1. Converter
Units: mm

Mounting hole

9
4-2. ABSOCODER Sensor
(1) Multi-turn type ABSOCODER Units: mm

10
 Units: mm

11
(2) Linear type ABSOCODER
Units: mm

12
 Units: mm

13
4-3. Extension Sensor Cable
Units: mm

4P-S-0102-[L]／4P-RBT-0102-[L]

4-4. Interconnecting Sensor Cable

Units: mm

4P-RBT-0103-[L]

14
5. INSTALLATION
The installation conditions and precautions for each of the system components are described in this section.

5-1. Converter Installation Conditions and Precautions

-Installation Site

(1) Avoid sites where the unit is exposed to direct sunlight.

(2) The ambient temperature should never exceed a 0 to 55°C range.
(3) The ambient humidity should never exceed a 20 to 90% RH range.
(4) Do not install the unit in areas where condensation is likely to
occur (high humidity with extreme temperature changes).
(5) Avoid sites where dust is excessive.
(6) Do not install in areas with an excessive amount of salt and/or metal chips.
(7) Do not install in areas where flammable and/or corrosive gases are present.
(8) Avoid areas where splashing water, oil or chemicals are likely to occur.
(9) Avoid areas where vibration and shocks are excessive.

-Installation cautions
(1)Install inside the control cabinet.
(2)Install in a vertical direction so that the characters are visible.
(3)If a DIN rail mounting format is used, insert until the latch mechanism catches with an audible click.
Secure between end plates at both sides.
(4)In high vibration areas, secure tightly with 2 M4 screws.
(5)Install as far from high voltage lines and power lines as possible in order to minimize noise influences.
(6)Allow 85mm or more space at the converter's front side for plugging in and unplugging the connector.
(7)Peripheral components should be arranged so as not to obstruct converter installation, removal, and
connector plugging/unplugging.
(8)Peripheral components should be arranged so as not to obstruct the converter's heat dissipation.

15
5-2. ABSOCODER Sensor Installation Conditions and Precautions
The installation conditions and precautions for ABSOCODER sensor are described in this section.
-Handling of Turn-type ABSOCODER
Item Explanation
1) Main unit

2) Cable

-Mounting of Turn-type ABSOCODER

Item Explanation Precaution
1) Mounting For details regarding mounting dimensions, refer to each
sensor dimensions.
2) Cable port

3) Cable Do not use the standard

cable for movable parts.
(Use robotic cable.)

16
-Mounting of Turn-type ABSOCODER
Item Explanation Precaution
1) Coupling of machine A “direct-link” format will
shaft and sensor result in shaft fatigue
shaft and / or breakage after
long periods.
Therefore, be sure to
use a coupling device
to link the shafts.

2) For gear-type linkage Incorrect gear mounting

can result in shaft
bending or breakage.

3) For rack and pinion Incorrect rack and

type linkage pinion mounting can
result in shaft bending
or breakage.

4) Chain or timing belt

linkage

17
Mounting of Turn-type ABSOCODER
Item Explanation Precaution
5) Shaft mounting position

-Coupling of Turn-type ABSOCODER

Item Explanation Precaution
1) Coupling device 1. The selection of a
selection precaution larger coupling than
necessary will increase
the shaft load which is
caused by the
mounting error amount.
Excessive force applied
to the shaft can deform
the coupling and reduce
durability.

2.

3.

2) Coupling device
installation precaution

18
-Handling of Linear-type ABSOCODER <Multi-pitch & Dual-rod type>
Item Explanation
1) ABSOCODER unit

2) Sensor rod

3) Anchor method

-Operation Range of Linear type ABSOCODER<Multi-pitch & Dual-rod type>

Item Explanation
1) Operation range

19
-Mounting of Linear-type ABSOCODER <Multi-pitch and Dual-rod type>
Item Explanation
1) Mounting on rod 1.
anchor block

2) Mounting bolt positions 2.

3) Mounting conditions 3. The mounting parallelism and squareness should be as shown in the
following figures.

20
5-3. CE Marking
NCV-20 series conforms to CE Marking (EMC directive), but stands outside scope of the low voltage directive
because it is 24 VDC power apparatus.

5-3-1. EMC Directives

It is necessary to do CE marking in the customer’s responsibility in the state of a final product.
Confirm EMC compliance of the machine and the entire device by customer because EMC changes
configuration of the control panel, wiring, and layout.

5-3-2. EMC Directive and Standards

EMC Directive consists of immunity and emission items.
It conforms to Table 01(see below) of EMC standards and Testing.

Table 01 EMC Standard and Testing

Class Standard No. Name
EMI EN61000-6-4 Generic standards.
(Emission) Emission standard for industrial environments
EN55011 Class A Electromagnetic radiation disturbance
EMS EN61000-6-2 Generic standards.
(Immunity) Immunity standard for industrial environments
EN61000-4-2 Electrostatic discharge
EN61000-4-3 Radiated, radio frequency, electromagnetic field
EN61000-4-4 Electrical fast transient / burst
EN61000-4-5 Surge immunity
EN61000-4-6 Conducted disturbances, induced by
radio-frequency fields
EN61000-4-8 Power frequency magnetic field

5-3-3. Measures for EMC Compliance

The I / O cable must be under 30m from the host controller to the converter. The wiring should be surely
secured.

[Reference]
It may be improved when clamp ferrite core is added to the power supply cable, sensor cable, and
I/O cable when it operates faultily by the influence from the peripheral device.

Recommendation Clamp Ferrite Core (Product name: Clamp filters for cable)
Mounting location Clamp ferrite core model Manufacturer
Power supply cable, extension ZCAT2032-0930
TDK
sensor cable (Inner dimensions: φ9)
I / O cable ZCAT3035-1330
TDK
(Inner dimensions: φ13)

21
6. WIRING
6-1. Connection between Converter and ABSOCODER Sensor
The maximum extension sensor cable length varies according to the ABSOCODER sensor and cable model being
used. Please refer to the 3-2 for details.

-Wiring Precautions
(1) The sensor cable should be clamped as shown
in the right figure to prevent excessive tension from
being applied to the cable connectors.

(2) The sensor cable should be located at least 300mm

away from power lines and other lines which generate
a high level of electrical noise.

(3) If the cable is moved under the state of bending

like a horseshoe, a robotic cable should be used.
The bend radius should never be less than 75 mm.

22
6-2. Power Supply Connection
The power supply should be connected as described below:

(1) Power Supply

-The rush current is 10A(rush time of 20ms), so
select the power supply after due consideration.
Choose the capacity of the power supply over Power +24VDC Over current
double of power consumption of converter. Supply 0V protector

-The input power supply should be isolated from

the commercial power supply.

-Twist the power cable for preventing noises.

-Use the M4 size crimp lug terminals with

insulating sleeves in order to prevent short
circuit caused by loose screws.

-Use a Class 2 power supply.

-Use AWG 12 to 22 electrical wires which conform
to the UL1015 or UL1007 standard.
-Use field installed conductors with a temperature rating of 75°C or higher.
-Use electrical wires of copper or copper strand.
-The terminal block tightening torque is 1.8 N-m (16 lb-in).

(2) Ground
-The unit should be securely grounded (ground resistance of 100ohm or less) to prevent electrical shocks.
-The ground wire should be connected to the ground terminal directly.

Other Other
Converter Converter
products products

-Use AWG 12 to 14 electrical wires which conform to the UL1015 or UL1007 standard.
-Use field installed conductors with a temperature rating of 75°C or higher.
-Use electrical wires of copper or copper strand.
-The terminal block tightening torque is 1.8 N-m (16 lb-in).

23
6-3. Input / Output Connector Connection
Lead wires should be soldered to pins of the connector according to the I/O chart below.

Pin Input /
Signal Names Descriptions
No. Output
1 D0 (LSB) NCV-20NBPMP:
Output the position data by16 bit of binary code.
2 D1
3 D2 NCV-20NGPMP:
4 D3 Output the position data by16 bit of gray binary code.

5 D4 NCV-20NBPLW:
6 D5 Output the position data by15 bit of binary code.
No output from 16 pin(D15).
7 D6
8 D7 NCV-20NGPLW:
Position data Output Output the position data by15 bit of gray binary code.
9 D8
No output from 16 pin(D15).
10 D9
11 D10
NCV-20NBPLY:
12 D11 Output the position data by16 bit of binary code.
13 D12
NCV-20NGPLY:
14 D13
Output the position data by16 bit of gray binary code.
15 D14
D0：LSB（Least Significant Bit）
16 D15 (MSB) D15：MSB（Most Significant Bit）
17 NC Do not connect anything.
Switches OFF when sensor or connector is disconnected or
18 SE
Sensor loose.
Output
disconnected error Switches ON when sensor or connector is disconnected or
19 SE
loose.
Ground for sensor disconnected error output signal and HOLD
20 Z24 Ground
input signal.
This is a power supply for the sensor disconnected error output
21 P24 24V for SE Input
signals.
The HOLD input signal is used to HOLD position data outputs
22 HD HOLD
from the host controller.
23 LP Latch pulse Output Outputs the position data reading timing signal.
24 +COM Signal common
Input Common for D0 to D15 and LP signal
25 +COM Signal common
Connector at cable side (It is included in the converter.) Soldered socket: MR-25F
Cover: MR-25L
Connectors are manufactured by Honda Tsushin Kogyo Co., LTD.
Pin arrangement

24
 ●I/O Circuit

Converter internal circuit

1
* Input/output circuit is isolated from power supply and internal circuitry by photo-coupler.
2
* Use a Class 2 power supply for the input/output external power supply.

25
7. NOMENCLATURE
7-1. Part Identification
Monitor LEDs
-Position data output indicator
-Sensor disconnection indicator
-Latch pulse indicator
-HOLD input indicator

Power terminal block

-M4 screw
Current position
value setting switch

I/O connector

Sensor connector

7-2. Function and Name of Display and Setting Area

Rear face
LED function for monitor
Switch
-Position data increase direction setting:
-Switch DOWN: CW direction
-Switch UP: CCW direction

0 to15: Displays position data

as binary or gray binary.
Function setting switches:
See section 8.3 (Position
Data Reading Setting)
LP: Lights when latch pulse
output is ON (HIGH).
HD: Lights at HOLD input.
SE: Lights at sensor
disconnection.

26
8. OPERATION
8-1. Operation Sequence

START

Function selector switch setting

Designate the following setting by a switch which is at
rear face of the converter. -------- Refer to section 8-2, 8-3.

(1) Position data "increase direction" setting

(2) Position data reading setting

Converter mounting
-------- Refer to section 5-1.
Mounting the converter.

Connect with external device

-------- Refer to section 6-1 to 6-3.
Connect ABSOCODER sensor and control devise to the
converter.

Origin (position data) adjustment -------- Refer to section 8-4.

Sets the current position value.

Test run
Check the operation. Make corrections if problems exist
with position data readings or current position value.

Operation
Execute operation.

END

27
8-2. Position Data "Increase Direction" Setting
The position data increases or decreases according to the ABSOCODER sensor's rotative direction (travel
direction). The direction in which the position data increases is specified by a switch on the converter's rear
face.

Switch setting
Increase
Switch setting Alteration of the position data
direction
Switch DOWN position ("CW" side)
(Factory setting)

CW

Switch UP position ("CCW" side)

CCW

Rotative direction of the shaft Travel direction of the rod

Important Position data "increase direction" setting caution

Do not change the position data "increase direction" switch setting while the power is ON, as this
could cause an accident.

28
8-3. Position Data Reading Setting
(1) Function setting switch list

The following two position data reading formats are available:

1) Latch pulse (LP) format…Reads position data which is updated regularly in synchronization with a latch
pulse output signal from the converter.
2) HOLD (HD) format…Reads position data while position data updates are stopped by a HOLD input signal.
When the LP output signal reading format is used, a position data update period (cycle) can be selected
which is appropriate for the host controller being used.
When the HD input signal reading format is used, either a transparent format or a PC synchro format can
be selected.
The desired position data reading format can be specified by the DIP switches on the rear face of the
converter. The DIP switch settings are shown below.

Refer to the page 30.

Refer to the page 30.

Refer to the page 31.

Refer to the page 31.

Refer to the page 31.

Refer to the page 31.

Refer to the page 31.

Refer to the page 31.

Refer to the page 32.

Refer to the page 32.

Important Cautions when using the function setting switches

-Always verify the function setting switch settings before beginning operation.
-Never use function switch settings which are not indicated in the specifications.
-Do not change function switch settings during operation, as this could result in injury.

29
(2) Position data reading by LP output
Position data reading is synchronized with the LP output signal from the converter. Either high-speed or
low-speed reading can be selected.

●High-speed reading
When high-speed reading is selected, the position data output stabilizes at the leading edge of the LP
output signal. The position data should be read at that time.

LP cycle Switch setting t1 t2

0.2ms 200μs 70 to 100μs

0.4ms 400μs 170 to 200μs

30
●Low-speed reading (at LP=LOW)
When low-speed reading (at LP=LOW) is selected, the position data output stabilizes when the LP output
signal is LOW. The position data should be read at that time.

Position data update

Switch setting t1 t2 t3
cycle

12.8ms 12.8ms 3.2ms 6.4ms

25.6ms 25.6ms 6.4ms 12.8ms

51.2ms 51.2ms 12.8ms 25.6ms

●Low-speed reading (at LP=HIGH)

When low-speed reading (at LP=HIGH) is selected, the position data output stabilizes when the LP output
signal is HIGH. The position data should be read at that time.

Position data update

Switch setting t1 t2 t3
cycle

12.8ms 12.8ms 3.2ms 6.4ms

25.6ms 25.6ms 6.4ms 12.8ms

51.2ms 51.2ms 12.8ms 25.6ms

31
(3) Position data reading by HOLD (HD) input
The HD input signal is used to HOLD position data outputs from the host controller. Either of the following 2
position data HOLD formats can be selected.

●Transparent format
Position data output updating is stopped by an HD input signal from the host controller (PLC, etc.). The
position data should be read at that time.

Updating of the position data is stopped while the HD input signal is ON (H). Position data reading should
be performed after waiting period "t1" following the HD input signal ON.

When the HD input signal switches OFF (L), position data updates are synchronized with the LP output
signal.

Switch setting t1 t2

Transparent format 90μs 340μs

●PC synchro format

Position data output updating occurs when the HD input signal status changes (leading edge or trailing
edge), and is not synchronized with the LP output signal.

Position data reading should be performed following waiting period "t1" after the HD input signal status is
changed by the host controller (PLC, etc.).

Switch setting t1 t2

PC synchro format 230μs 200μs or more

32
8-4. Current Position Setting

The current position setting function changes the converter's position data output to a value that corresponds
to the machine's current position. The position data can be changed to any desired value by using the rotary
switch on the control panel.
If an extension sensor cable is being used, the cable must be connected when performing the current position
setting function.

(1) For binary code output

<Current position setting procedure>
1) Secure the sensor to the machine, then move the machine to the desired position.
2) Obtain the position data that corresponds to the machine's current position.
3) Use the control panel's rotary switches (in the D0 to D3 order) to specify monitor LED values that match the
position data obtained at step 2) above.

33
(2) For gray binary code output
<Current position setting procedure>
1) Secure the sensor to the machine, then move the machine to the desired position.
2) Obtain the position data that corresponds to the machine's current position.
3) Convert the position data obtained at step 2) above to gray binary code.
4) Use the control panel's rotary switches (in the D0 to D3 order) to specify monitor LED values that match the
value converted at step 3) above.

*Each digit (D0 to D3) of gray binary code may not be adjusted to target values.
If it is not able to adjust, set the value by following methods:
1. Add “8H” to the setting value of each digit when setting the digit of D0 to D2. One upper digit is
specified when one lower digit is also set up.
2. Add "8000H" to the current position data (it is the confirmed value in step 3)) when setting the digit of
D3, then set the digit of the D0 again.

34
9. MAINTENANCE and INSPECTIONS
The inspection should be conducted once every 6 months to a year.
Any inspected items which do not satisfy the criteria shown below should be repaired.
9-1. Inspection
Inspection
Inspection Description Criteria Remark
item
Measure the voltage fluctuation at the power supply Power supply voltage
Power
terminal block to determine if it is within the fluctuation must be within Tester
supply
prescribed range. 21.6V to 26.4VDC range
Sensor: -20 to +60°C
Ambient Check the ambient temperature. Thermometer
Converter: 0 to +55°C
Conditions
There should be no accumulation of dust. None
There should be no
Verify that the sensor is securely mounted.
looseness.
Verify that the sensor shaft is securely coupled to the There should be no
machine shaft. looseness.
Mount Cable should appear Visual
Check for severed cables.
Conditions normal. Inspection
Verify that the sensor cable connector is plugged in There should be no
all the way. looseness.
There should be no
Verify that the I/O connector is plugged in all the way.
looseness.

9-2. Troubleshooting
The causes and corrective actions for errors that may occur during NCV-20 operation are described below.
Error item Cause Countermeasure
Sensor Sensor connector is disconnected.
Secure the connector
disconnected LED Sensor connector is loose.
(SE) is ON. Sensor cable is severed. Replace the sensor cable
Deviation in origin Coupling of sensor shaft and machine shaft is loose.
Secure the coupling or mounting.
point position. Sensor mounting is loose.
Latch pulse output signal and position data reading
timing is improper.
Incorrect position Correct the reading timing.
HOLD input signal and position data reading timing is
data output improper.
The wiring of the output signal has problems. Repair the wiring.
The function setting switch is incorrect. Change the setting.
Position data
The voltage of the power supply for input and output is Supply the correct power voltage.
HOLD doesn’t
out of prescribed range. 21.6V to 26.4VDC
occur.
The wiring of the input signal has problems. Repair the wiring.
The function setting switch is incorrect. Change the setting.
The voltage of the power supply for input and output is Supply the correct power voltage.
No position data
out of prescribed range. 21.6V to 26.4VDC
output
“HD”(the external input signal) is ON. Check the signal.
The wiring of the output signal has problems. Repair the wiring.
If the troubleshooting procedures described above fail to solve the problem, the sensor or converter may be
defective. In this case, please contact your NSD representative.

35
Manufacturer
NSD Corporation 3-31-28, OSU, NAKA-KU, NAGOYA, JAPAN 460-8302

Distributor
NSD Trading Corporation 3-31-23, OSU, NAKA-KU, NAGOYA, JAPAN 460-8302
Phone: +81-52-261-2352 Facsimile: +81-52-252-0522
URL: www.nsdcorp.com E-mail: foreign@nsdcorp.co.jp
Copyright©2018 NSD Corporation All rights reserved.