NSD NCV-20NBNVP User manual

ZEF004472603
ABSOCODER CONVERTER
NCV-20NBNVP
NCV-20NGNVP
Specifications & Instruction Manual
Applicable sensor:
VRE-P028
VRE-P062

6. Operation
- Do not change the controller's function switch settings during the
operation; otherwise, it will cause injury.
- Do not approach the machine after instantaneous power failure
has been recovered.
Doing so may result in injury if the machine starts abruptly, it will
cause injury.
- Be sure to check that the power supply specifications are correct;
otherwise, it may caused controller failture.
- Be sure to provide an external emergency stop circuit so that
operation can be stopped with power supply terminated immediately.
- Be sure to conduct independent trial runs for the controller before
mounting the controller to the machine;
otherwise, it may cause injury.
- When an error occur, be sure to eliminate the cause, ensure
safety, and reset the error before restarting operation;
otherwise, it may cause injury.
7. Maintenance And Inspection
- Do not disassemble, remodel, or repair the unit;
otherwise, it will cause electric shock, fire, and unit malfunction.

- The capacitor of the power line deteriorates through prolonged use.
We recommended that the capacitor be replaced every five years
to prevent secondary damage.
8. Disposal
- Be sure to handle the controller as industrial waste while
disposing of it.
1. Handling Precautions
- Do not touch components inside of the controller;
otherwise, it will cause electric shock.
- Do not damage the cable by applying excessive load, placing
heavy objects on it, or clamping;
otherwise, it will cause electric shock or fire.
DANGER
- Turn the power supply OFF before wiring, transporting, and inspecting
the controller; otherwise, it may cause electric shock.
- Provide an external safety circuit so that the entire system
functions safely even when the controller is faulty.
- Connect the grounding terminal of the controller;
otherwise, it may case electric shock or malfunction.
- Do not use the controller in the following palces; water splashes,
the atmosphere of the corrosion, the atmosphere of the flammable
vapor, and the side of the combustibility.
Doing so may result in fire or the controller may become faulty.

- 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
failure.
- Be sure to use the specified combination of the ABSOCODER
sensor, controller and sensor cable; otherwise, it may cause fire or
controller malfunction.
CAUTION
2. Storage
CAUTION
- Do not store the controller in a place exposed to water, or toxic
gas and liquid.
- Be sure to store the controller in designed temperature and humidity
range, and do not exposed to direct sunlight.
- Be sure to consult with NSD when the controller is stored for long
periods.
- Do not hold the cable or shaft of ABSOCODER sensor during
transport; otherwise, it will cause injury or controller malfunction.
CAUTION
3. Transport
Thank you very much for purchasing our product.
Before operating this product, be sure to carefully read this manual so that
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.
Signal Words
 Safety precautions in this guide are classified into DANGER and CAUTION.
Symbol Meaning
DANGER
Incorrect handling may cause a hazardous situation that
will result in moderate injury or physical damage.
Incorrect handling may cause a hazardous situation that
will result in death or serious injury.
Instructions accompanied by a symbol may also result in serious
damage or injury. Be sure to follow the all instructions accompanied by the symbol.
Graphic Symbols
Symbol Meaning
Indicates prohibited items.
Indicates items that must be performed to.
This product is not designed to be used under any situation affecting human
life. When you are considering to use this product for special purposes such as
medical equipment, aerospace equipment, nuclear power control systems,
traffic systems, and etc., please consult with NSD.
CAUTION
CAUTION
Application Limitation
4. Installation
- Do not step on the controller or place heavy objects on the controller;
otherwise, it will cause injury.
- Do not block the exhaust port or allow any foreign matter to enter
the controller; otherwise, it will cause fire or unit failure.
- Be sure to secure the controller and ABSOCODER sensor with the
provided brackets; otherwise, it may cause malfunction, injury, or
drop.
- Be sure to secure the specified distance between the main body
and the control panel or other equipments; otherwise, it may cause
malfunction.
5. Wiring
- Be sure to secure the terminal block firmly; otherwise, it may have
risk of fire.
- Be sure to mount the terminal cover provided with the controller,
before supplying the power, starting operation after the installation,
and wiring; otherwise, it may cause electric shock.
- 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.
- Be sure to connect all cables correctly; otherwise, it may cause injury
or controller malfunction.
- Be sure to firmly connect the external I/O connectors and sensor
connectors; otherwise, it may cause incorrect inputs and outputs or
injury.
CAUTION
CAUTION
(Please read this safety guide carefully before operation)
GENERAL SAFETY RULES
DANGER
CAUTION
CAUTION
CAUTION

< NCV-20NBNVP and NCV-20NGNVP Specifications & Instruction Manual Revision History>
* The Document No. appears at the upper right of this manual's cover page.
Document No. Date Revision Description
ZEF004472600 20, Sep., 2005 1st Edition
Japanese document: ZEF004472101
ZEF004472601 19, Oct., 2005 2nd Edition
Modification of the contents (p. 16, 6-2 Power Supply Connection and
p. 21, 8-2. Position Data "Increase Direction" Setting)
Japanese document: ZEF004472101
ZEF004472602 04, Nov., 2005 3rd Edition
Modification of the contents (p.17, 6-3 Input / Output Connector
Connection and p.27, 8-4. Current Position Setting (2) For gray binary
code output
)
Japanese document: ZEF004472101
ZEF004472603 20, Jan., 2006 4th Edition
Addition of the contents (p.2, 2 CONFIGURATION, p.3, 2-1 Model List,
p. 7, 4-1. Converter, p. 30, Appendix 1-1. VE-2B and NCV-20
Differences, p. 32, APPENDICES 2. VE-2A(G) AND NCV-20
COMPATIBILITY)
Japanese document: ZEF004472102

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 ...............................................................................................................6
4. DIMENSIONS ...........................................................................................................................................................7
4-1. Converter ...........................................................................................................................................................7
4-2. ABSOCODER Sensor........................................................................................................................................8
4-3. Extension Sensor Cable ..................................................................................................................................10
5. INSTALLATION.......................................................................................................................................................11
5-1. Converter Installation Conditions and Precautions..........................................................................................11
5-2. ABSOCODER Sensor Installation Conditions and Precautions ......................................................................12
5-3. CE Marking ......................................................................................................................................................15
5-3-1. EMC Directives .........................................................................................................................................15
5-3-2. EMC Directive and Standards...................................................................................................................15
5-3-3. Measures for EMC Compliance ................................................................................................................15
6. WIRING...................................................................................................................................................................16
6-1. Connection between Converter and ABSOCODER Sensor............................................................................16
6-2. Power Supply Connection................................................................................................................................17
6-3. Input / Output Connector Connection ..............................................................................................................18
7. NOMENCLATURE ..................................................................................................................................................20
7-1. Part Identification .............................................................................................................................................20
7-2. Function and Name of Display and Setting Area.............................................................................................20
8. OPERATION ...........................................................................................................................................................21
8-1. Operation Sequence ........................................................................................................................................21
8-2. Position Data "Increase Direction" Setting.......................................................................................................22
8-3. Position Data Reading Setting.........................................................................................................................23
(1) Function setting switch list .............................................................................................................................23
(2) Position data reading by LP output ................................................................................................................24
(3) Position data reading by HOLD (HD) input ....................................................................................................26
8-4. Current Position Setting ...................................................................................................................................27
(1) For binary code output ...................................................................................................................................27
(2) For gray binary code output ...........................................................................................................................28
9. MAINTENANCE and INSPECTIONS .....................................................................................................................29
9-1. Inspection.........................................................................................................................................................29
9-2. Troubleshooting ...............................................................................................................................................29
APPENDICES 1. VE-2B(G) AND NCV-20 COMPATIBILITY......................................................................................30
Appendix 1-1. VE-2B(G) and NCV-20 Differences .................................................................................................30
Appendix 1-2. Replacement Models .......................................................................................................................30
Appendix 1-3. Switch Settings when Replacing VE-2B (G) with NCV-20...............................................................30
APPENDICES 2. VE-2A(G) AND NCV-20 COMPATIBILITY......................................................................................32
Appendix 2-1. Procedure of Replacing VE-2A(G) with NCV-20 .............................................................................32
Appendix 2-2. Replacement Models .......................................................................................................................33
Appendix 2-3. Precautions for the Replacement from VE-2A(G) to NCV-20..........................................................33

1. SUMMARY
The NCV-20 converter can be combined with a single-turn type ABSOCODER “VRE sensor “ to convert the
detected absolute position data to binary or gray binary values for output.
Moreover, a current position setting function permits a position data to be changed to any desired values.
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) Compliance with UL and CE standards
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) Problem-free backward compatibility
The NCV-20 Series is fully compatible with the earlier VE-2B Series, and can easily replace a VE-2B without
wiring changes.
1

2. CONFIGURATION
Power
Supply
+24V
0V
Ground
Connector at cable side
(It is included in the
converter.)
MR-25F：Soldered socket
MR-25L：Cover
Connectors are manufactured
by Honda Tsushin Kogyo Co.,
LTD.
External output signal
-Position data
-Latch pulse
-Sensor disconnected
External input signal
-HOLD
3) Extension sensor cable 2) ABSOCODER sensor
3P-S-0102-[m], 3P-RBT-0102-[m]
3P-S-0102-[m] 3P-S-0102-[m]
3P-RBT-0102-[m] 3P-RBT-0102-[m]
VRE-P028SAC, VRE-P062[ ][ ]C
6) L type flange-mount fixture
1) Converter
4) Servo-mount fixture 5
)
Reinforced servo-mount fixture
7) Converter mount fixture
(Option)
2

2-1. Model List
No. Items Models Descriptions
NCV-20NBNVP Position data binary output1) Converter
NCV-20NGNVP Position data gray binary output
VRE-P062SAC Servo-mount type, Flat shaft shape
VRE-P062SBC Servo-mount type, Key way shaft shape
VRE-P062FAC Flange-mount type, Flat shaft shape
VRE-P062FBC Flange-mount type, Key way shaft shape
2) ABSOCODER
sensor
VRE-P028SAC Servo-mount type, Flat shaft shape
3P-S-0102-[ ]
Standard 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.)
3) Extension
sensor cable
3P-RBT-0102-[ ]
Robotic 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.)
SB-01 Included with VRE-P062SAC, VRE-P062SBC4) Servo-mount
fixture SB-02 Included with VRE-P028SAC
5) Reinforced
servo-mount
fixture
SH-01 Option for VRE-P062SAC, VRE-P062SBC
6) L type flange RB-01 Option for flange-mount and reinforced servo-mount fixture
7) Converter mount
fixture NCV-K1 Option for the replacement from VE-2A or VE-2B
3

3. SPECIFICATIONS
3-1. Converter Specifications
(1) General Specification
Items Specifications
Power supply voltage 24VDCV±10% (including ripple)
Power consumption 7W or less
Insulation resistance 20 M-Ohms or more between external DC power terminals and ground
(by 500 VDC insulation resistance tester)
Withstand voltage 500 VAC, 60Hz for 1 minute between external DC power terminal and
ground
Vibration resistance 20m/s210 to 500Hz, 10cycles of 5 minutes in 3 directions,
conforms to JIS C 0040 standard
Ambient operating temperature 0 to +55°C (No freezing)
(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
Converter model NCV-20NBNVP NCV-20NGNVP
Applicable sensor VRE-P028
VRE-P062
Total number of divisions 8192 (213)
Output code Binary : 13-bit Gray: 13-bit
Number of detection axes 1
Position data sampling time 0.2ms
Status output signal
Latch pulse (Position data reading timing): 1 point
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
12.8ms
25.6ms
Position data
update cycle Low-speed
51.2ms
Transparent format
Switch
(on rear face of product)
HOLD signal
format PC synchro format
Monitor LED Display of sensor disconnected error, Display of position data,
Display of latch pulse output, Display of HOLD signal format status
Applicable standard
UL508 (File No. E257113)
CSA C22.2 No.14-95 (Compliance with UL standard)
CE marking (EMC directive)
4

(3) Input / Output Specification
Items Specifications
Input signals HD (Position data HOLD): 1 point
Input circuit DC input, photo-coupler isolation
Input logic Negative logic
Rated input voltage 24VDC±10%
Rated input current 10mA(24VDC)
ON voltage 10VDC or more
Input
OFF voltage 4VDC or less
Output signals
D0 to D12 (Position data): 13 points
LP (Latch pulse: position data reading timing): 1 point
SE, SE(Sensor disconnected error): 2 points
Output circuit Isolation, photo-coupler open collector output
Output logic D0 to D12 , LP , SE :negative logic
SE:positive logic
Rated load voltage 24VDC(30VDC max.)
Max. load current D0 to D12 , LP :10mA / point
SE, SE: 100mA / point
Output
Max. voltage drop
when ON 0.8V
5

3-2. ABSOCODER Sensor Specifications
VRE-P028, VRE-P062
Items Specifications
Sensor model VRE-P028 VRE-P062
Total number of turns 1
Number of divisions 8192(213)
Mass 0.25 kg 0.13kg
Linearity error 1.5° Max. 1° Max.
Moment of inertia GD2 /4(J) 9.3 x 10-8 kg-m2
(9.5 x 10-7 kgf-cm-s2)
6.4 x 10-6 kg-m2
(6.5 x 10-5 kgf-cm-s2)
Starting torque 1.5 x 10-3 N-m or less
(0.015 kgf-cm or less)
4.9 x 10-2 N-m or less
(0.5 kgf-cm or less)
Radial 15N(1.5 kgf) 98N (10 kgf)Permissible
shaft load Thrust 9.8N(1.0kgf) 49N (5 kgf)
Permissible mechanical
speed 6000 r/min 3600 r/min
Bearing life 8 x 104hs (at 6000 r/min) 5.5 x 104hs (at 3600 r/min)
Operating -20 to +60°CAmbient
temperature Storage -30 to +90°C
Vibration resistance 2.0 x 102m/s2(20G) 2000Hz, up/down 4 hs, forward/back 2 hs,
conforms to JIS D 1601 standard
Shock resistance 4.9 x 103m/s2(500G) 0.5 ms, up/down/forward/back X 3 times each,
conforms to JIS C 5026 standard
Protection rating IP40,
conforms to JEM 1030 standard
IP52F,
conforms to JEM 1030 standard
Standard
cable 100 m (3P-S)
Max. sensor
cable length Robotic cable 100m (3P-RBT)
Interconnecting sensor cable 2 m
3-3. Extension Sensor Cable Specification
Items Specifications
Model code 3P-S 3P-RBT
Cable type Standard cable Robotic cable
Diameter 8
Operating -5 to +60°CAmbient
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
Advantage Extensible for long distances
Usable with moving machine
menber thanks to excellent
flexibility
6

4. DIMENSIONS
4-1. Converter
Units: mm
Mounting hole
Units: mm
●In the case of using Converter mount fixture (NCV-K1)
7

4-2. ABSOCODER Sensor Units: mm
8

Units: mm
9

Units: mm
4-3. Extension Sensor Cable
3P-S-0102-[L]／3P-RBT-0102-[L]
Units: mm
10

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.
11

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.)
12

-Mounting of Turn-type ABSOCODER
Item Explanation Precaution
1) Coupling of machine
shaft and sensor
shaft
A “direct-link” format will
result in shaft fatigue
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
type linkage
Incorrect rack and pinion
mounting can result in
shaft bending or
breakage.
4) Chain or timing belt
linkage
13

-Mounting of Turn-type ABSOCODER
Item Explanation Precaution
5) Shaft mounting position
-Coupling of Turn-type ABSOCODER
Item Explanation Precaution
1.
2.
1) Coupling device
selection precaution
3.
2) Coupling device
installation precaution
The selection of a
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.
14

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
EN61000-6-4 EMC common emission standard
(Industrial environments)
EMI
(Emission)
EN55011 Class A Limits and methods of measurement of
electromagnetic disturbance characteristics
of industrial, scientific, and medical
equipment (ISM).
EN61000-6-2 EMC common immunity standard
(Industrial Environments)
EN61000-4-2 Electro-static discharge test
EN61000-4-3 Radiated electromagnetic radio frequency
test
EN61000-4-4 First transient / burst test
EN61000-4-5 Surge immunity test
EN61000-4-6 Conducted susceptibility test
EMS
(Immunity)
EN61000-4-8 Power frequency magnetic field test
5-3-3. Measures for EMC Compliance
The power supply cable must be under 10m from 24 VDC power supply to the converter.
The I / O cable must be under 10m 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
Mounting location Clamp ferrite core model Manufacturer
Power supply cable, sensor cable ZCAT2032-0930
(Inner dimensions: 9) TDK
I / O cable ZCAT3035-1330
(Inner dimensions: 13) TDK
15