Stepping & Servo Motor Controller

C-VX875
Instructions Manual(For designers' use)

Please ensure to read and understand thisInstructions Manual before using the Product.
Please keep this Instructions Manual at handso that it is always available for reference.

MN0203C-VX875

Instructions Manual

Introduction
This instructions manual explains the handling of "Stepping Motor and Servo Motor Controller C‑VX875"
emphasizing the specifications to enable proper and safe use.
The manual is thus intended for designers of control systems using stepping motors or servo motors.
Before using the product, read this manual carefully for better understanding.
Keep the manual handy so that you can read it whenever you want.

Wish and Notes■The product and product specification which are indicated in this manual may be changed without apreliminary announcement by improvement etc.
■The technical information indicated in this manual is for explaining typical operation andapplication of a product, and does not perform consent of the guarantee to the intellectual
property rights and other rights of our company and a third party, or an actual right on theoccasion of the use.
■When you use the circuit indicated in this manual, software, and the information relevant to these,
please fully evaluate by a user's whole apparatus and system.
Moreover, please judge application propriety on a user's responsibility.
■The product which uses a semiconductor and a semiconductor may malfunction depending on an operating
condition, or a certain probability.
In order not to generate an accident resulting in injury or death, a fire accident, social damage,etc. by failure or malfunction of this product, please cope with a safety design required for thelast equipment or a system, according to a user's responsibility.
■This product is designed and manufactured as a general industrial‑oriented general‑purpose product.
Therefore, please do not use aircraft instruments, an aerospace instrument, a submarine relay
appliance, a nuclear control system, transport plane machines (vehicles, a vessel, etc.), the signal
machine for traffic, disaster prevention / crime prevention apparatus, a safeguard, medical equipment,
etc. for the use which can consider big influence by a human life or property.
■Do not carry out reconstruction, change, and reproduction of this product.
■Please observe export related statutes applied, such as "foreign exchange and Foreign Trade Law",
when exporting, and perform required procedure by the place provided by this statute.
Please do not use the technical information indicated in this product or this manual for the purposes,
such as development of mass‑destruction weapons, the purpose of military use, and the other purposeof a military use.
Moreover, this product cannot be used for the apparatus to which manufacture, use, and sale areforbidden by a statute in and outside the country and regulation.
■Please be sure to ask to window of our marketing department about details, such as the environmental
suitability of this product.
■When using it, content of a specific substance, RoHS Directive which regulates use, etc. should
investigate the environmental related statute applied enough. And please suit this statute.
About the damage which arose by not observing the statute which requires to user, our company does
not take any responsibility.

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C-VX875

Instructions Manual

Description of Safety
This product must be handled correctly.
Handling the product incorrectly may cause unexpected accidents resulting in personal injuries ordamage to your properties.
Many of those accidents can be avoided if you have advance information on dangerous situations.
This manual provides precautions where dangerous situations are predicted. The manual provides thefollowing alert marking and messages for this purpose:
 WARNING

This indicates a hazardous situation that could result in death or serious
personal injury if you do not perform the procedure correctly.

 CAUTION

This indicates a potentially hazardous situation that could result in personal
injury or physical damage if you do not perform the procedure correctly.

Before Use■Set up the product before operating it.
Refer to Section 3, "Setting."■This product is equipped with a LIMIT (overtravel) signal and an FSSTOP signal to prevent mechanicaldamage.
The initial values of these signals are set to ACTIVE OFF (B contact). Accordingly, even in asystem configuration in which the FSSTOP and LIMIT signals are not used, pulses are not output
unless NORMAL ON (GND connection) is enabled.
■The C‑VX875 allows axes to be controlled independently and therefore referred to each axis
as follows:
1st axis
X axis

2nd axis
Y axis

3rd axis
Z axis

4th axis
A axis・AL‑Ⅱ I/O communication of C‑VX875 explains C‑VX875 as a master board.
・This manual basically explains only the X axis.
■Please also read the device driver operation manual for Windows which suited this product.

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C-VX875

Instructions Manual
Introduction
Wish and Notes
Description of Safety
Before Use
Ｃｏｎｔｅｎｔｓ

PAGE

１．OVERVIEW
1‑1.
Features
1‑2.
Product Configuration
1‑3.
Example of System Configuration
1‑4.
Function Block Diagram
1‑5.
Externals of product

5
5
5
6
8

２．SPECIFICATIONS
2‑1.
General Specifications
2‑2.
PCI Specifications
2‑3.
Basic Specifications
2‑4.
Applied Functions
2‑5.
AL‑Ⅱ I/O Communication specifications
2‑6.
Input and Output Signal Table(1) User I/O connector (J1)
(2) AL‑Ⅱ I/O communication connector (J2)
(3) Special‑purpose I/O connector (J3)2‑7.
Input and Output Specifications(1) Output specifications(2) Input specifications
2‑8.
Outside Dimensions

9
9
10
12
14
15
15
17
18
19
19
20
21

３．SETTING
3‑1.
Installation of device driver for Windows
3‑2.
Setting the Board Number(S1)
3‑3.
Setting of the AL‑Ⅱ I/O communication(1) Address setting of the AL‑Ⅱ I/O seiries(2) Baud rate setting of the AL‑Ⅱ I/O seiries(3) Retry number setting of the AL‑Ⅱ I/O seiries
3‑4.
Setting of Extend communications

22
22
22
22
22
22
22

４．CONNECTION
4‑1.
Example of user I/O Interface Power Supply Connection
4‑2.
Examples of Connection to Drivers(1) Example of connection to the stepping motor driver(2) Example of connection to the servo motor driver
4‑3.
Examples of Connection to Sensors(1) Example of sensor attachment (photosensor)(2) Example of connection to a limit sensor(3) Example of connection to an origin sensor
4‑4.
Connection to AL‑Ⅱ communication system(1) Core connection of AL‑Ⅱ I/O communications cable(2) Connection of terminator(3) Wiring distance of AL‑Ⅱ I/O communications(4) Power supply and slave power for communication

23
24
24
25
26
26
26
27
29
29
29
29
29

５．Maintenance
5‑1.
Maintenance and Inspection(1) Cleaning method(2) Inspection method(3) Replacement method
5‑2.
Saving and Disposal(1) Saving method(2) Disposal method

30
30
30
30
30
30
30

The main parts which revised by this manual-4-

C-VX875

Instructions Manual
１．OVERVIEW
1‑1. Features● The C‑VX875 is controller equipped with four independently functioning axes.
This controller supports servo and stepping motors that can directly be inserted into slots of a PCI
bus system conforming to PCI bus specifications R2.2.
・From RJ‑45 connector of a front panel, a maximum of four slave I/O units of AL‑Ⅱ series areconnectable by AL‑Ⅱ I/O communication.
Moreover, an Extended I/O unit can also be extended to a slave I/O unit.
Thereby, 4 axes motor control and the I/O system of a maximum of 256 points/256 points can bebuilt by one PCI slot.
・The board shape is the universal short card size (107 x 170) of the PCI bus standard.
● The C‑VX875 is equipped with our chip controller MCC07 to enable motor control using simple commands.
・C‑VX875 enables four independently linear interpolation driving, 2‑axis linear interpolation(fixed interpolation‑axes) or 2‑axis circular interpolation (fixed interpolation‑axes) driving.
Moreover,the C‑VX875 is enable to optional axes liner interpolation drive or Optional 2‑axis
circular interpolation drive. (Applied function)
・The 32‑bit width address counter and the maximum output frequency of 6.5 MHz of the MCC07 enables
high‑precision, high‑speed positioning.
・Also equipped with a multi‑functional 32‑bit pulse counter, and 16‑bit pulse differential counter,
the C‑VX875 has a variety of application such as counting feedback pulses from the servo driver,detecting step‑out of the stepping motor with an encoder. The applications also include interrupt
output and external signal output using the comparator function of each counter.
・After the command being executed is finished, the commands stored in the reservation register are
executed sequentially. Then this function can be allowed continuous drive. (Applied function)

1‑2. Product Configuration
Product nameController

RatingC‑VX875

Maker
Melec Inc.

Quantity1Remarks(Main unit)

1‑3. Example of System Configuration
C‑VX875
PL1
PL2
PL3
PL4

C-VX875

JP1

PC

OptionRelay unit

Cable

Stepping or Servo
DriverMotor
X‑axisCB‑25A/4C etc.
・CE‑33‑E4/100A10 (1m)Y‑axis・CE‑34‑E4/100A20 (2m)(Direct installation)

OptionDevice driver●MPL‑30‑01vx.xx/PCIW32*1・Windows 2000

・CE‑35‑E4/100A30 (3m)・CE‑36‑E4/100A50 (5m)Z‑axis

AL‑Ⅱ I/O communication

A‑axis30m/20Mbps,50m/10Mbps

・Windows XP(32 Bit)

ORG, LIMIT sensor, Encoder signal etc.

・Windows Vista(32 BIt)

2CB‑01v1/3232‑MIL etc.

I/O 32/32 points

J2

MADE IN JAPAN

J8
J6

J4

IN
IN

J3 DC+24V

・Windows 7(32 Bit)

OUT
OUT

*1

J1

CB‑52/3232‑MIL etc.

J7J5

●MPL‑31‑01vx.xx/PCIW64

J6 IN

J3 OUTJ5 OUT
MADE IN JAPAN2CB‑02v1/1616‑MIL etc.

I/O 16/16 points

J5

J1

OUT

J2

MADE IN JAPAN

J6

J4

IN

J3 DC+24V

・Windows 7(64 Bit)

I/O 32/32 points
J1

・Windows Vista(64 Bit)

J4 IN

J2

DC+24V・Windows XP(64 Bit)

*1 Please check the latest version number of vx.xx by the operation manual of-5-device driver.

C-VX875

Instructions Manual
1‑4. Function Block Diagram
CN1
X‑axis

70CCM

Y‑axisZ‑axis7
0
CC
M

Local Bus

A‑axisDrive Control block Counter block
Drive Control block Counter block
Drive Control block Counter block
Drive Control block Counter block


k
c
o
l
b
e
c
a
f
r
e
t
n
i
s
u
B


General‑purpose output(OUT0‑‑OUT3)
General‑purpose input(IN0‑‑IN3)

Driver ＆ Sensor
O
/
I
r
e
s
U


PCI Bus

J1

Driver ＆ Sensor
Driver ＆ Sensor
Driver ＆Sensor

General‑purposeI/OSENSORx Input



O
/
I
E
S
O
P
R
U
P
‑
L
A
I
C
E
P
S


Hard Configuration block(Applied Function)

J3
Manual Input
SIGNAL INx Input
SIGNAL OUTx Output(Applied Function)

J2(Insulation)‑

AL‑Ⅱ I/O Communication
Control block


Ａ
Ｌ
Ⅱ
Ｉ
／
Ｏ

Ａ
Ｌ
Ⅱ
Ｉ
／
Ｏ
Ｕ
Ｎ
Ｉ
Ｔ

 Bus interface block
Interface block with the PCI bus
 Drive control block
The drive control block outputs serial pulses to the motor driver.
The 2‑axis indicated byis interrelation.

It enables 2‑axis linear interpolation or 2‑axis circular interpolation.
 Counter block
The counter block has three types of counters: ADDRESS COUNTER, PULSE COUNTER, and DFL COUNTER.
(Can use as hard timer.)
ADDRESS COUNTER, PULSE COUNTER has 32‑bit counter, DFL COUNTER has 16‑bit counter.
These counters count pulses output by the controller or signals such as feedback signals from theencoder.
Each counter equipped with three compare registers. These registers count optional count.
 General‑purpose OUTPUT block
The block can control OUT0〜OUT3
 General‑purpose INPUT block
The block can control IN0〜IN3-6-

C-VX875

Instructions Manual Hard Configuration block (Applied Function)
The Hard Configuration block is a control block that allows the user to connect User I/O andSpecial‑purpose I/O to signals: Multipurpose sensor signal input to each axis, signal forsynchronization control, status signal.
The control block is used for multipurpose sensor function, Synchronous drive function, Status
output function.
 User I/O block
The user I/O block interfaces with motor drivers, sensors, and general‑purpose I/O equipment
signals.
 Special‑purpose I/O block (Applied Function)
The block interfaces with input signals what motors can be operated manually, and what can output
status signals to the outside.
 AL‑Ⅱ I/O Communication Control block
It is the circuit block which controls AL‑Ⅱ I/O communication.
The interface part of AL‑Ⅱ I/O communication is insulated with C‑VX875 internal circuit(personal computer power supply).
 AL‑Ⅱ I/O Communication interface block
They are a slave I/O unit of AL‑Ⅱ series, and an interface part which performs AL‑Ⅱ I/O
communication.

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C-VX875

Instructions Manual

C-VX875

MADE IN JAPAN



PL5
PL6
PL7
PL8



JP1





1

1‑5. Externals of product


CN2









 CN1

Universal (5V/3.3V) board edge connector inserted into a PCI bus.

 J1

100‑pin half pitch connector that interfaces the motor driver, sensor signals, andequipment having +24V interface I/O.
Dedicated interface cables (1m, 2m, 3m, and 5m) and relay units are available.

 J2

This is a RJ‑45 type shield connector which connects AL I/O communication.
The slave I/O unit of AL‑Ⅱ series is connectable with AL‑Ⅱ I/O communication.

 J3Connector that interfaces with external signals at TTL level.
Motors can be operated by manual operation through this connector.
External input signals can be assigned as input signals to signals for the SENSOR andsignal for synchronization control.
Signals can be output to the outside by status signal of each axis.
A general‑purpose standard MIL connector is used.

(APPLIED FUNCTION) S1Rotary switch that is set so that PCI can recognize the board number.
If two or more boards are inserted into the PC simultaneously, set the switch properly
so that every board number is unique.

 RDY LED

LEDs that allows the user to simply monitor the X, Y, Z, and A axes to check whether
the axes are operating normally. The RDY LED corresponding to each axis is on while
the axis is waiting for a command and is off during command processing.

 PL5,PL6

These are LED for a monitor of AL‑Ⅱ I/O communication.
・PL5(Red)… This LED emits light, when the abnormalities or hard abnormalities of
AL‑Ⅱ I/O communication are detected.
・PL6(Green) … This LED emits light, when it can access from a PCI bus.
・PL7,PL8… It is not used.

 JP1

It is a connector for adjustment. Nothing should connect.

 CN2

It is not used now. It is a connector for extension.
Nothing should connect.

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C-VX875

Instructions Manual
２．SPECIFICATIONS
2‑1. General Specifications
No.

Item

Specifications

1

Supply voltage,
・+5V ±5%, 1.0 A or lesspower consumption ・+24Vdc ±2V, 200 mA or less (for photocoupler interface)

2

Operating ambient ・0℃ 〜 ＋45℃
temperature and・80％RH or less (without dew condensation)
humidity3

Storagetemperature andhumidity

・0℃ 〜 ＋55℃
・80％RH or less (without dew condensation)

4

Installation
environment

・Inside a well‑ventilated cabinet installed indoor, free from direct sunlight・Not exposed to corrosive and flammable gasses, and not affected by oil mist,
dust,salt, iron powder, water, and chemicals
・Not subject to constant vibration or excessive shock
・Not affected by electromagnetic noise caused by power equipment
・Free of radioactive materials and magnetic fields, and not in vacuum

5

Dimensions

・Short card size

6

Weight・About 0.2 kg(107mm×170mm×17mm)

2‑2. PCI Specifications
No.

Item

Specifications

1

Applicablestandard

PCI Local Bus Specification Rev2.22

Bus interface

・32‑bit bus, 33 MHz clock
・5V/3.3V Signal system (Universal)※ It is nesessary +5V power supplied from the bus slot.

3

Interrupt

・INTA#
However, there is no interrupt from AL‑Ⅱ I/O communication.

4

System Resouce

・I/O : 128‑byte + 256‑byte-9-

C-VX875

Instructions Manual
2‑3. Basic Specifications
No.
Item
1 Number of
4 axescontrol axes
2

Specifications

Pulse output Output typefunction・Independent direction output/Specified direction output/
Phase‑differential signal output
・Line driver output

Output frequency

・Independent drive ：0.1 Hz to 6.5 MHz・Interpolation drive：0.1 Hz to 5 MHz

Acceleration/deceleration

5000 ms/kHz to 0.0025 ms/kHz (Trapezoid/S‑curve)

time constantAcceleration/decelerationshape

3 Encoderfunction

4 Drivefunction

Trapezoid/S‑curve(This feature enables to set asymmetricalshape)

Triangular drive
prevention function

・During S‑shaped acceleration/deceleration drive, INDEX
drive may end before the maximum speed is reached.
In this event, triangular drive can be automatically
avoided.

Number of output pulses

・JOG drive
・SCAN drive
・INDEX drive

Input type・Incremental
・Line receiver input

Input range

・〜5MHzExternal signal output

・External signals such as hand pulser signals that are input
to the EA and EB signals can be output as CWP and CCWP
signals.

JOG drive

・Pulses are constantly output until the specified pulses.

SCAN drive

・Pulses are continuously output until a stop command is detected.

INDEX drive

・Pulses are output until the specified relative or absoluteaddress is reached.

ORIGIN drive

・The specified drive processes are performed.
This drive is finished when the ORG signal specified edge
is detected.

2‑axis linear
interpolation drive

・Linear interpolation is performed toward the specified
coordinates from the current coordinates.
・Driving type is selected from INDEX drive or SCAN drive.
・Max speed is 5MHz.
・Positional errors for the specified straight line are±0.5 LSB.
・The absolute and relative addresses that can be specified
for coordinates range from ‑2,147,483,647 to +2,147,483,647(32 bits).

2‑axis circularinterpolation drive

・Circular interpolation is performed toward the specified
coordinates from the current coordinates on the circular
curve specified by the center‑point or passing‑point
coordinates.
・Driving type is selected from INDEX drive or SCAN drive.
・Max speed is 5MHz.
・Positional errors for the specified circuit curve are ±1
LSB.
・The relative addresses range from ‑8,388,607 to +8,388,607(24 bits).
・Short axis pulses range from
‑2,147,483,648 to +2,147,483,647 (32 bits).

Linear speed constantcontrol・Control is performed to keep the synthesized speed of thetwo axes working for interpolation drive constant.

- 10 -:::‑65,535 to +65,535 pulse
Up to infinite pulses‑2,147,483,647 to + 2,147,483,647 pulses

C-VX875

Instructions Manual

No.

Item

5 Stopfunction

6 Counterfunction

7 Otherfunctions

Specifications
Slow stop function

・SLOW STOP command・Detection of a match of the comparator of each counter.
・IN0‑‑IN3 signal setting the DALM input function, the DALM
signal can be used as the slow stop signal.
・Multipurpose sensor signal(SS0,SS1)

Immediate stop function

・FAST STOP command・FSSTOP singal(User I/O)・FSSTOP signal(Special‑purpose I/O)
・Detection of a match of the comparator of each counter.
・IN0‑‑IN3 signal setting the DALM input function, the DALM
signal can be used as the immdiate stop signal.
・Multipurpose sensor signal(SS0,SS1)

LIMIT signal● + direction stop・Immediate stop by CWLM signal and slow stop can be selected.
・Slow stop or immediate stop can be performed for each axis
upon detection of a match of the comparator(COMP2) of eachcounter.
● ‑ direction stop・Immediate stop by CCWLM signal and slow stop can beselected.
・Slow stop or immediate stop can be performed for each axis
upon detection of a match of the comparator(COMP3) of eachcounter.

Address counter・32‑bit counter that manages absolute addresses by counting
drive output pulses.

Pulse counter・32‑bit counter that countes external pulse signals or
encoder feedback pulses.

Pulse differential
counter

・16‑bit counter that detects differences in the number ofpulses by counting external pulse signals and encoder
feedback pulses.
・It can also be used as a 16‑bit timer.

Comparator function

・Detection of a match of the three comparators of eachcounter.
・Upon detection of a match by the comparator, pulse output
can be decelerated and then stopped, or stopped immediately.
・Upon detection of a match by the comparator, output external
status signal.

AUTO CLEAR function

・The comparator of each counter:The counter can automaticallybe cleared upon detection of a match of COMP1 of eachcounter.

AUTO ADD function

・The comparator of each counter:If the couter value reaches
the COMP1, a value that is set by the data add to COMPAREREGISITER1.

Servo driver support
function・The signals are specially prepared as servo driver suport
signals.
・Servo positioning completion input/phase (DEND/PO)
signal input
・Servo reset output(DRST)
・General‑purpose input signal(DALM .etc)(IN0‑‑IN3)
・General‑purpose output signal(S.ON .etc) (OUT0‑‑OUT3)

Data reading function

・Current status information can be read in real time.
Current status information includes status data, count dataof a counter etc.

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C-VX875

Instructions Manual
2‑4. Applied Functions
No.

Item

1 Drivefunction

Description of specifications
UP/DOWN/CONST drive CHANGE
function・Drive change for acceleration, deceleration, or
constant speed can be performed upon detection of
signal at an arbitrary change operation point.

SPEED CHANGE function

・The drive pulse speed is changed upon detection of
signal at an arbitrary change operation point.

RATE CHANGE function

・The rate is changed upon detection of signal atan arbitrary change to the specified rate.

INDEX CHANGE function

・Upon detection of signal at an arbitrary change
operation point, the stop position at which drive
is to be finished is changed.
・Upon detection of the INC INDEX CHANGE command, thesystem performs INC INDEX drive by setting thespecified data at the stop position of the relative
address for which the start position is the origin.
・Upon detection of the ABS INDEX CHANGE command, thesystem performs ABS INDEX drive by setting thespecified data at the stop position of the absoluteaddress managed with the address counter.

Optional axes linerinterpolation drive

・Linear interpolation is performed toward thespecified coordinates from the current coordinates.
Then long axis outputs pulses.

Optional 2‑axis circularinterpolation drive

・Circular interpolation is performed toward thespecified coordinates from the current coordinates
on the circular curve.

INDEX drive controll
the start point at auto
deceleration

・This function is allowed to set OFFSET of the startpoint at auto deceleration. This function can be used
When INDEX drive,liner interpolation INDEX drive,and circular interpolation INDEX drive.

MANUAL SCAN drive

・MANUAL SCAN/JOG drive in the + or ‑ direction is
performed by operation of SELA to D,MAN, CWMS, CCWMS
signal input through the J3 connector.

2 Count function Ring counter function

3 Otherfunctions・The address counter, pulse counter each are a ringcounter in which any maximum count can be set.

Count data latch/clearancefunction・This function latches count data of a counter at a
specific latch timing and holds it till the next latch
timing.
・Each counter can latch counter value at arbitrary
timing. It is possible to clear a counter value at thelatch timing.

Interrupt function

・Each axis can output interrupt signals to the CPU.
・Each interrupt signal is output when an interrupt iscaused by drive end, state of a reservation register,and detection of a match by the counter.

Command reservation
function・Each axis has a reservation register that can store
data commands for ten instructions.
・General‑purpose commands of Drive commands can bereserved in the reservation register.
・After the command being executed is finished, thecommands stored in the reservation register are
executed sequentially.Then this function can beallowed continuous drive.

- 12 -

C-VX875

Instructions Manual

No.

Item

3 Otherfunctions

Description of specifications
Input signal logical switch ・The input signal can be changed to logic as follows:
function
・CWLM
・CCWLM・DALM(INx is used for DALM function)
Input signal time constantfunction・The input signal can be set time constant as follows:
・CWLM
・CCWLM・DALM(INx is used for DALM function)
・DEND/PO
・ORG
・NORG
・±ZORG・±EA,EB

Multipurpose sensor
signal input

Each axis has multipurpose sensor signal input used asstop signal, trigger signal of a counter latch data
and drive CHANGE operating signal.
The signal can be used as multipurpose sensor as
follows:
・SENSORx input signal
・SIGNAL INx input signal
・A status in any axis

Status external signal
output function

・The compare register value, STATUS, output signalof each counter can output as SIGNAL OUTx output
signal.

Synchronized start
function・You can perform synchronized start with any axis.
・A condition of start can be set by the condition as
follows:
・SENSORx input signal
・SIGNAL INx input signal
・A status in any axis
・PAUSE command

Status read
Data reading

・Current status information can be read in real time.
・Current status information includes setting data
any axis, latch data of a counter etc.

※ Applied function.
Refer to the separate manual of the Windows device driver corresponding to C‑VX875 Applied FunctionsPart.

- 13 -

C-VX875

Instructions Manual
2‑5. AL‑Ⅱ I/O Communication specifications
No.
1

Item
AL‑Ⅱ I/O
interface

Description of specifications
Conformity standard

RS485 (Insulation type)Transmission protocol

Protocol for AL‑Ⅱ I/O communication

Application slave

・2CB‑01v1/3232‑MIL (32/32 points)
・2CB‑02v1/1616‑MIL (16/16 points)
A maximum of 4 slave
・C‑VX875 address of AL‑Ⅱ I/O communication: H'0 fixation
・Slave address setting range: Within the limits of H' 1〜H' F
・50 m/10 Mbps
・30 m/20 Mbps

Slave connection number

Wiring distance/baud rate2

Connected
confirmation

Reading of slave
information

The slave type connected now can be read.

Reading of error total
number・The error total number detected in the AL‑Ⅱ I/O
communication after the power supply is turned on
can be read.
・It is possible to use it for the evaluation of thecommunication environment.
・When retrying is detected, it counts as an error.
・The error total number can be counted 65535 times
or less. More than it do not update a count.

of slave3

Error detectionof AL‑Ⅱ I/O
communication

Clear of error total number The value in which the error total number is counted can
be cleared to 0.

4

Initialize

Retry・It is a function to evade the stagnation of the entire
system by retrying it when the influence of the noise
etc. is given to AL‑Ⅱ I/O communications.
・The number of retrying is set by an Environment‑set‑
function.
When retrying is made effective and the communication
abnormality is detected, retrying is automatically
executed.
・The setting of retrying is possible by the range from0 (non‑retry) to 3.

Auto transmission of
initialization

The master carries out initialization for all slavesautomatically when user carries out an Environment‑set‑
function to a master.

Interlock・When an Environment‑set‑function is executed from theapplication, master executes initialization(a request) to each slave.
・The slave product of the AL‑Ⅱ series doesn't accept
other requests until the initial‑request sent frommaster is received after the power supply is turnedon.
・When other requests are received, an initial error isreturned. As a result, master notifies the application
the answer back.
・When the internal logic on the slave side was reset by
the power failure etc. momentarily, operation by the
improper data can be stopped.
Please execute to master an Environment‑set‑function,
after turning on slave's power supply.

* Refer to the operation manual of 2CB‑01v1/3232‑MIL or 2CB‑02v1/1616‑MIL, about the slave I/O unit
specification of AL‑Ⅱ I/O communication connectable with C‑VX875.

- 14 -

C-VX875

Instructions Manual
2‑6. Input and Output Signal Table(1) User I/O connector (J1)
■Pin assignments(J1)・Connector type name・Adaptable socket：HDRA‑E100LFDT‑SL+ (HONDA TSUSHIN KOGYO)：HDRA‑E100MA1+ ,HDRA‑E100M1+ etc.
(HONDA TSUSHIN KOGYO, not included in attached accessories)(Adaptable socket is 100‑pin)
・Adaptable cable：CE‑33‑E4/100A10 (1 m in length)
CE‑34‑E4/100A20 (2 m in length)
CE‑35/E4‑100A30 (3 m in length)
CE‑36/E4‑100A50 (5 m in length)* The above‑mentioned conformity cables are not accessories.
Although C‑VX875 is a 4 axis controller, the suiting cable becomes"8 axes and 12 axis controllers."
Reference
For more information about a cable preparing in the
C‑VX870 series, refer to the instruction manual of"The connecting cable for board controllers" .

■Signal table
This product may be damaged.

 CAUTION

Do not connect +24V to any pin other than EXTV.
After wiring, be sure to confirm the wiring before power‑on.

● A signal indicated byis photocoupler‑insulated.
● A signal is enable to set time constants marked with ☆.(Applied function)● Logic switching is enabled for an input signal marked with ★.(Applied function)
Logic switching is enabled for general‑purpose input signal INx,
when this signal is used for DALM function(Note 1)
An external power supply is required for a signal that is photocoupler‑insulated.
The specified input voltage range is +24V ±2V.
Current consumption at +24V is up to 200mA.
The initial values of the CWLM and CCWLM signals of each axis and the FSSTOP signal are
ACTIVE OFF input (B contact).
An external power supply must be connected even if these signals are not used.
The default contact B is recommended for the CWLM and CCWLM signals.
However, A‑contact signal input can also be used by switching logic.
(Note 2)SENSORx input signals are used for multipurpose sensor function, synchronization control
function. These input signals is used by any functions setting.(Applied function)
The initial value after resetting is as follows:
SENSOR0 signal is SS0 of Z‑axis, SENSOR1 signal is SS0 of A‑axis.
When SENSORx input signal is used for multipurpose sensor function, this signal can not use
in MANUAL mode.
When MANUAL mode, the functions of multipurpose sensor assigned to the SENSORx input signal
are invalid.
When BUS mode, this function are valid.

- 15 -

C-VX875

Instructions Manual

Pin

Dir

No.
1

In

2

In

3

In

4

In

5

In

6

In

7

In

8

In

9

In

10

In

11

In

Signal name

Description

Pin

Dir

In

XCWLM

X axis + (CW) direction limit
signal☆★

No.
51

XCCWLM

X axis ‑ (CCW) direction limit
signal

☆★

52

In

XNORG

X axis machine origin proximity
signal

☆

53

In

XORG

X axis machine origin signal

☆

54

In

YCWLM

Y axis + (CW) direction limit
signal☆★

55

In

YCCWLM

Y axis ‑ (CCW) direction limit
signal

☆★

56

In

YNORG

Y axis machine origin proximity
signal

☆

57

In

YORG

Y axis machine origin signal

☆

58

In

SENSOR0

Multipurpose sensor,synchronous
start signal (Note 2)

59

In

☆(★)

60

Out

IN0

General‑purpose input 0 signal(This signal allows X axis drivererror signal)

☆(★)

61

Out

IN1

General‑purpose input 1 signal(This signal allows Y axis
driver error signal)

☆(★)

62

Out

IN2

General‑purpose input 2 signal(This signal allows Z axis
driver error signal)

☆(★)

63

Out

IN3

General‑purpose input 3 signal(This signal allows A axis
driver error signal)
External power supply forcoupler (Note 1)

64−

Signal name

Description

ZCWLM

Z axis + (CW) direction limit
signal☆★

ZCCWLM

Z axis ‑ (CCW) direction limit
signal☆★

ZNORG

Z axis machine origin proximity
signal☆

ZORG

Z axis machine origin signal

☆

ACWLM

A axis + (CW) direction limit
signal☆★

ACCWLM

A axis ‑ (CCW) direction limit
signal☆★

ANORG

A axis machine origin proximity
signal☆

AORG

A axis machine origin signal☆

SENSOR1

Multipurpose sensor,synchronous
start signal (Note 2)
General‑purpose output 0 signal

OUT0
General‑purpose output 1 signal
OUT1

12

In

13

In

14

−

EXTV

15

−

EXTV

65

−

EXTVGND

16

Out

+COM

XCWP,XCCWP +common (+5V)

66

Out

+COM

ZCWP,ZCCWP +common (+5V)

17

Out

XCWP

X axis + (CW) direction positive
logic pulse output

67

Out

ZCWP

Z axis + (CW) direction positive
logic pulse output

18

Out

XCWP

X axis + (CW) direction negative
logic pulse output

68

Out

ZCWP

Z axis + (CW) direction negative
logic pulse output

19

Out

XCCWP

X axis ‑(CCW) direction positive
logic pulse output

69

Out

ZCCWP

Z axis ‑(CCW) direction positive
logic pulse output

20

Out

XCCWP

X axis ‑(CCW) direction negative
logic pulse output

70

Out

ZCCWP

Z axis ‑(CCW) direction negative
logic pulse output

21

Out

XDRSTCOMXDRST current output (+24V)

71

Out

ZDRSTCOMZDRST current output (+24V)

22

Out

72

Out

XDRST

X axis servo reset signal(This signal is used for general
purpose output)

ZDRST

Z axis servo reset signal(This signal is used for general
purpose output)

XDEND/XPO

X axis positioning completion signal/X axis PO signal

ZDEND/ZPO

Z axis positioning completion signal/Z axis PO signal

23

In

General‑purpose output 2 signal
OUT2
General‑purpose output 3 signal
OUT3

☆

73

EXTVGND

In

External power supply forcoupler GND (Note 1)

☆

24

−

N.C

Reserved

74

−

N.C

Reserved

25

In

+XEA

X axis encoder +A phase signal

☆

75

In

+ZEA

Z axis encoder +A phase signal

☆

26

In

‑XEA

X axis encoder ‑A phase signal

☆

76

In

‑ZEA

Z axis encoder ‑A phase signal

☆

27

In

+XEB

X axis encoder +B phase signal

☆

77

In

+ZEB

Z axis encoder +B phase signal

☆

28

In

‑XEB

X axis encoder ‑B phase signal

☆

78

In

‑ZEB

Z axis encoder ‑B phase signal

☆

29

In

+XZORG

X axis encoder +Z phase signal

☆

79

In

+ZZORG

Z axis encoder +Z phase signal

☆

30

In

‑XZORG

X axis encoder ‑Z phase signal

☆

80

In

‑ZZORG

Z axis encoder ‑Z phase signal

☆

31

Out

N.C

Reserved(No connecting)

81

−

N.C

Reserved

32

Out

+COM

YCWP,YCCWP +common (+5V)

82

Out

+COM

ACWP,ACCWP +common (+5V)

33

Out

YCWP

Y axis + (CW) direction positive
logic pulse output

83

Out

ACWP

A axis + (CW) direction positive
logic pulse output

34

Out

YCWP

Y axis + (CW) direction negative
logic pulse output

84

Out

ACWP

A axis + (CW) direction negative
logic pulse output

35

Out

YCCWP

Y axis ‑ (CCW) direction positive
logic pulse output

85

Out

ACCWP

A axis ‑ (CCW) direction positive
logic pulse output

36

Out

YCCWP

Y axis ‑ (CCW) direction negative
logic pulse output

86

Out

ACCWP

A axis ‑ (CCW) direction negative
logic pulse output

37

Out

YDRSTCOMYDRST current output (+24V)

87

Out

ADRSTCOMADRST current output (+24V)

38

Out

88

Out

YDRST

Y axis servo reset signal(This signal is used for general
purpose output)

ADRST

A axis servo reset signal(This signal is used for general
purpose output)

39

In

YDEND/YPOY axis positioning completion signal/Y axis PO signal

☆

89

In

ADEND/APO

A axis positioning completion signal/A axis PO signal

40

−

N.C

Reserved

90

−

N.C

Reserved

41

In

+YEA

Y axis encoder +A phase signal

☆

91

In

+AEA

A axis encoder +A phase signal

☆

42

In

‑YEA

Y axis encoder ‑A phase signal

☆

92

In

‑AEA

A axis encoder ‑A phase signal

☆

43

In

+YEB

Y axis encoder +B phase signal

☆

93

In

+AEB

A axis encoder +B phase signal

☆

44

In

‑YEB

Y axis encoder ‑B phase signal

☆

94

In

‑AEB

A axis encoder ‑B phase signal

☆

45

In

+YZORG

Y axis encoder +Z phase signal

☆

95

In

+AZORGA axis encoder +Z phase signal

☆

46

In

‑YZORG

Y axis encoder ‑Z phase signal

☆

96

In

‑AZORGA axis encoder ‑Z phase signal

☆

47

Out

N.C

Reserved(No connecting)

97

−

N.C

Reserved

48

In

FSSTOP

All axes immediate stop signal

98

In

RESET

All‑axis reset signal

49

−

N.C

Reserved

99

−

N.C

Reserved

50

−

D.GND

Internal +5V digital GND

100

−

D.GND

Internal +5V digital GND- 16 -☆

C-VX875

Instructions Manual(2) AL‑Ⅱ I/O communication connector (J2)
■Pin assignments(J2)・Connector type・Adaptable cable：RJ‑45 (Shield type)：KB‑STP‑□□L□□:length (〜30 m or less)(Made by Sanwa Supply: It is not an accessory.)
Reference
For more information about a cable preparing in the
AL‑Ⅱ series and a recommended cable, refer to the
instruction manual of "connection / others" .

■Signal table
No.

Direction

Signal name

Description

1

−

N.C

Connection is prohibited.

2

−

N.C

Connection is prohibited.

3

I/O

+ALⅡ

+ side input/output signal of the serial data(line driver positive logic)

4

I

+V

Power supply for AL‑Ⅱ I/O communication (+6 V)

5

I

‑V

GND for AL‑Ⅱ I/O communication (0 V)

6

I/O

‑ALⅡ

‑ side input/output signal of the serial data(line driver negative logic)

7

−

N.C

Connection is prohibited.

8

−

N.C

Connection is prohibited.

- 17 -

C-VX875

Instructions Manual(3) Special‑purpose I/O connector (J3)
The conector of the applied function.
■Pin assignment
・Connector type name・Adaptable connector socket
・Adaptable cable
19：XG4C‑2031 (OMRON)：XG4M‑2030 (OMRON, Not accessories.)：CE‑13(MIL 20P 1.5 m flat cable. Not accessories.)1■ ■ ■ ■ ■ ■ ■ ■ ■ ■■ ■ ■ ■ ■ ■ ■ ■ ■ ■20

2■Signal table
・All input signal is not able to set time constants, to switch logic.
(Note 1) When the MAN signal goes low, this bord is MANUAL mode.
When the MAN signal goes high, this bord return to BUS mode.
The MAN RDY signal is enable to go high by MAN MASK command.
When the MAN signal is low level, this bord is not MANUAL mode by setting MAN signal low level.
(Note 2) SIGNAL INx input signal can be use general‑purpose sensor function and synchronous start
function. If these signal is used, set the functions that need to be changed from their values.
The initial value after the relevant signal is reset is "No function" .
If this bord is MANUAL mode, You can not use SIGNAL INnx input signal.
When this bord is MANUAL mode, this signal(SEL A‑D) enable to select an axis that perfoms
MANUAL SCAN drive.
The functions assigned to the SIGNAL INnx input signal are invalid. And when this bord
returns to BUS mode, the functions assigned to this signal are valid.
(Note 3) SIGNAL OUTnx output signal can be output status signals of any axes by setting status output
function. The initial values after the relevant signal is reset are as follows:
SIGNAL OUTn0 is CNTINT signal of Xn axis. SIGNAL OUTn1 is CNTINT signal of Yn axis.
(Note 4) When this bord is MANUAL mode, SS0,SS1 input signal(SEL A‑D) enables general‑purpose sensor
that MANUAL SCAN drive specified axis.
When general‑purpose sensor function is set as "UP/DOWN/CONST command", this input signal
enable acceleration/deceleration command signal of MANUAL SCAN drive.
Pin

Dir

Signal name

DescriptionNo

BUS mode

MANUAL mode

1

−

D.GND

GND(internal +5V GND)

2

In

MAN

MANUAL mode select signal

3

In

FSSTOP

All axes immediate stop signal

4

In

CWMS

5

In

CCWMS

6

−

D.GND

GND(internal +5V GND)

7In

SIGNAL IN0 / SEL A

8InSIGNAL IN1 / SEL B

General‑purpose,
synchronous start signal

9

In

SEL C

10

In

SEL D

11

Out

SIGNAL OUT0

(Note 1)

CW direction MANUAL SCAN
drive command signal

Invalid

CCW direction MANUAL SCAN
drive command signal(Note 2)

Invalid

Staus output signal
12

Out

SIGNAL OUT1

13

Out

NC

14

Out

NC

15

−

D.GND

GND(internal +5V GND)

16

Out

+5V

Internal +5V

17

In

SS0

The signals can be combined to
select the axis used for manual
operation.

(The initial value after resetting：XCNTINT)(Note 3)
(The initial value after resetting：YCNTINT)

Reserved

MANUAL SCAN drive acceleration/
deceleration command signal(General‑purpse sensor signal) (Note 4)

Invalid
18

In

SS1

19

Out

MAN RDY

Permission signal switching MANUAL mode

20

−

D.GND

GND(internal +5V GND)

- 18 -(Note 1)C-VX875

Instructions Manual
2-7. Input and Cutput Specifications(1) Cutput specifications● Cutput specifications 1
CircuitDescription
Signal name

+5V






Max
20mA

→
←



Equivalent
to 26C31



Cutput method

 CWP,CCWP CWP,CCWP D.GND

Common for all axes

● Cutput specifications 2
Circuit

Photocoupler







Line driver (differential) output(Equivalent to 26C31: Compliant with RS422A)

Cutputcurrent±20mA

Cutputfrequency

Maximum 6.5MHz(Indipendent drive)

Insulation

Non-insulated

Description

+24V



CWP,CWP,CCWP,CCWP

←

CCTx

Max30mA～(Polyswitch)

Signal name

CCT0--CCT03

Interfacevoltage+24V

Cutput method

Nch transistor
Cpen collector output(Servo CN etc.)

EXTVGND

Common for CCT0 to CCT3

● Cutput specifications 3
CircuitCutputcurrent

CN:30mA(Vce＝1V or less)
50mA(Vce＝2V or less)
CFF :0.1mA or lessCutput1ms or lessresponse time (CN→CFF、CFF→CN)
Photocoupler insulation
Insulation(between internal circuits and external circuits)

Description
Signal nameDRST(Can be connected from DRSTCCM to the +5V
current limiting circuit: up to 15 mA)

+24V



1.65KΩDRSTCCM
Max15mA
Photocoupler







←

DRST

Max30mA～(Polyswitch)

EXTVGND

Common for all axes

～

 +5V

(Polyswitch) SIGNAL CCTnx
Equivalent to LS06

(Internal 5V GND)

J3 connector signal+24V

Nch transistor
Cpen collector output
CutputCN :30mA(Vce＝1V or less)current
50mA(Vce＝2V or less)
CFF :0.1mA or lessCutput1ms or lessresponse time (CN→CFF、CFF→CN)
Photocoupler insulation
Insulation
Cutput method(between internal circuits and external circuits)● Cutput specifications 4 (Applied function)
Circuit(Internal 5V)

Interfacevoltage( Trigger output etc.

to external equipment)

 D.GND

Description
Signal nameInterfacevoltage

SIGNAL CCT0, SIGNAL CCT1
+30V or lessCutput method Cpen collector output
Cutput
CN :10mA(Vce＝0.6V or less)current
CFF :0.3mA or lessCutput1μs or less (A latch and output time width canbe set for output.)
response time
(CN→CFF、CFF→CN)
Insulation- 19 -

Non-insulated

C-VX875

Instructions Manual(2) Input specifications● Input specifications 1
CircuitDescription
Signal name

+24V






EXTV

SENSCR0, SENSCR1, RESET(A contact)

CRG, NCRG

FSSTCP, CWLM, CCWLM(B contact)

 24V±2V or less



6.8KΩ

Photocoupler

DEND/PC
INx, SENSCRx
RESET(A connect)









CWLM,CCWLM

6.8KΩ

Photocoupler

CRG, NCRG, DEND/PC, IN0--IN3

FSSTCP(B connect)

Common for all axes
(Excluding INx, SENSCRx, FSSTCP, RESET)Interfacevoltage
Input
impedance
CN/CFF
level

+24V
6.8KΩ

CN :2.5mA or more
CFF :0.8mA or less
1ms or less (a signal other than the RESET)
Input
5ms or less(RESET)
response time
(CN→CFF、CFF→CN)
Photocoupler insulation
Insulation(between internal circuits and external circuits)● Input specifications 2
CircuitDescription
Connected to a line
driver output circuit




+5V

(compliant with RS422)



+5V






±EA、±EB、±ZCRG

InterfaceLine receiver input

specifications(should be connected to an RS422-compliant
line driver)

Input terminating

220Ω


Equivalent
to 26C32

Signal name

Equivalent to
26C31

 D.GND

resistor

220Ω

Response
frequency±EA,EB : 5MHz±ZCRG : 100KHz

Insulation

Non-insulated

Common for all axes

● Input specifications 3 (Applied function)
Circuit+5V

MAN ,CWMS ,CCWMS ,

1.0K



150K/10KΩ

Equivalent
to HC14

J3 connector signal

Signal nameMAN, CWMS, CCWMS, SS0, SS1, FSSTCPInterface

SIGNAL IN0, SIGNAL IN1 /SEL_A, B, C, D
TTL level CMCS schmitt input

SS0, SS1, FSSTCP,SIGNAL INx /SEL x

specifications

LS06、switch
etc.

(Internal 5V GND)

Description

Input level

 D.GND

High level open
Low level 0.8V or less

Input
5ms or lessresponse time :MAN, CWMS, CCWMS
1ms or less:SS0, SS1, FSSTCP
10us or less
:SIGNAL IN0, SIGNAL IN1 /SEL_A,B,C,D)(CN→CFF、CFF→CN)
Insulation- 20 -

Non-insulated

MADE IN JAPAN（The thickness of attachment lug is included)

C-VX875

2‑8.

（The thickness of attachment lug is included)

C-VX875

Instructions Manual

Outside Dimensions- 21 -

C-VX875

Instructions Manual
３．SETTING
Before integrating the C‑VX875 into the PC, set the switches on the board.
3‑1.

Installation of device driver for Windows
Device driver for Windows is necessary to operate this product.
・Please refer to the installation manual attachment to a exclusive use device driver「MPL‑30‑01vx.xx/PCIW32 or MPL‑31‑01vx.xx/PCIW64」for details of the installation method.
* Version No. …Please confirm the latest version of vx.xx at the manual of the device driver.

3‑2. Setting the Board Number(S1)Assign a board number to the C‑VX870 series using the rotary switch S1 on the board.
(By default (before shipment from the factory), the rotary switch is bord number 1)
When two or more C‑VX870 series boards are used, assign board numbers to the second and any
subsequent boards in such a way that no numbers are duplicated.
The following figure shows an example in which board number 2 is assigned.

◆ The S1 setting is validated after power‑on.
Set the switch with power off, and turn it on after changing the setting.

3‑3. Setting of the AL‑Ⅱ I/O communications
The C‑VX875 does the following setting of AL‑Ⅱ I/O communications by executing Environment‑set‑
function unlike the switch setting done with other slave units.
(1) Address setting of the AL‑Ⅱ I/O series
The C‑VX875 address is H' 0 fixation.
And, please set not to overlap the address of each slave I/O unit.
(2) Baud rate setting of the AL‑Ⅱ I/O series
As for the AL‑Ⅱ I/O communication baud rate, 10 Mbps/50 m or 20 Mbps/30 m can be selected.
To transmission rate to set in C‑VX875, please set the transmission rate of all slave I/O units
connected on AL‑Ⅱ I/O communication.
(3) Retry number setting of the AL‑Ⅱ I/O series
The setting of retrying is possible by the range from 0 (non retry) to 3.
・The address of the slave I/O unit, the transmission rate setting become effective at the timeof power supply injection.
Please turn on the power supply again without fail.
And to the master execute an Environment‑set‑function after these setting changes.
Please refer to the device driver manual for Windows for details of function specification.

3‑4. Setting of Extend communications
When the Extend‑unit is used, the address setting of the Extend‑unit and the hard setting of thebaud rate setting etc. are unnecessary.
・The Extend‑unit is controlled by an Extend‑unit‑communication‑set‑function
and an Extend‑unit‑communication‑control‑function.
Please refer to the details of function specifications at a device driver instruction manual
for Windows.
- 22 -

C-VX875

Instructions Manual
４．CCNNECTICN
4-1. Example of user I/C Interface Power Supply Connection
Relay unit etc.
J1
C-VX875

J1

Cable

Switching regulator

J2
+24V

＋

GND

－

FG



EXTV supply

・CMRCN
24V ・TDK・CCSEL etc.

(CB-25A/4C etc.)

Relay unit etc.
+24V

+24V

x6

DriverGND

24V supply

GND
x6

FG
(CB-35/PS etc.)

・For the user interface power supply (EXTV) of controller C-VX875, connect +24Vdc from thecommon power supply so that it turns on and off in synchronization with externally connected
equipment. For easy connection, use the optional relay unit.
・For the power supply used for the driver interface(CCTx signal,DRST signal), use one preparedby the controller, such as DRSTCCM.
For details, refer to Section 4-2, "Examples of Connection to Drivers."◆ Power may be supplied to the driver from a power supply different from the C-VX875 such as
by connecting to the CCTx or DRST signal of the servo driver or motor free (MF) signal of
the stepping driver. If so and power supply to the driver (+Vo) is greater than power
supply to the C-VX875 (+V), leak current i flows through the protection diode of the output
circuit and the input circuit of the connection destination may be put in the CN state.
When another power
supply is used

+24V(+V)

+Vo 

ｉ



DRST

Leak current

C-VX875 output circuit

Driver input(DRST、MF etc.)- 23 -

C-VX875

Instructions Manual
4-2. Examples of Connectinon to Drivers(1) Example of connection to the stepping motor driver(x axis pin numbers are used in this example.)
J1
CWP

C

CWP

C

CCWP

C

CCWP

C

DRSTCCM

C

DRST

C

17
18
19
20
21
22

C

All wires are 0.15SQ or more.

+CW


C

-CW

C

+CCW

C

-CCW

C

+M.F

C

-M.F

DEND/ PCC

60
23150Ω or more *1



5V specification
*2

+C.S
C




(as generalpurpose output)

CCT0



150Ω or more *1



5V specification
*2

C

-C.S

C

+P.C






24VGND

IN0

C

10

C

-P.C
+ALM



(DALM input)
24VGND

+ZCRG

C

­ZCRG

C

+ EA

C

­ EA

C

+ EB

C

­ EB

C

D.GND

C

29 *3
30 *3
25 *3
26 *3
27 *3
28 *3

50,100 *3

Contoller side

-ALM
Stepping motor driver side

C
C
C
C
C
C
C
Relay unit etc.

*1 If the current limiting resistor on the driver side is less than 150Ω, externally add
resistor so that the total resistor value becomes 150Ω or more.
*2 When the input circuit uses a +24V interface,the connection is as follows:

DRSTCCM

C

DRST

C

21
22

C

Not connected

+24V

C

60



-M.F
+24V

C



24V
specification(as generalpurpose output)

CCT0

+M.F

+C.S



24V
specification

C



-C.S

*3 The signal is connected when the encorder is used.
Example of connection refers to "Example of connection to the servo motor driver".

- 24 -

C-VX875

Instructions Manual(2) Examples of Connection to the servo motor driver(X axis pin numbers are used in this sample.)
J1
CWP

C

CWP

C

CCWP

C

CCWP

C

DRSTCCM

C

DRST

C

17
18
19
20
21
22

C

All wires are 0.15SQ or more.

+CW


C

-CW

C

+CCW

C

-CCW

C

+RESETC-RESETC

DEND/ PC

C

60
23




150Ω or more *1



5V specification
*2

+S.CN
CCT0



150Ω or more *1



5V specification
*2

C

-S.CN

C

+END






24VGND

IN0

C

10

C

-END
+ALM



(as DALM input)
24VGND

+ZCRG

C

­ZCRG

C

+ EA

C

­ EA

C

+ EB

C

­ EB

C

D.GND

C

29 *3
30 *3
25 *3
26 *3
27 *3
28 *3
50,100 *3

Controller side

C

-ALM
+Z
Line driver

C

-Z

C

+A
Line driver

C

-A

C

+B
Line driver

C

-B

C

S.G

Relay unit etc.

GND

Servo motor driver side

*1 If the current limiting resistor on the driver side is less than 150 Ω, externally add
resistor so that the total resistor value becomes 150 Ω or more.
*2 When input circuit of the servo driver uses a +24V interface, the connection is as follows:
DRSTCCM
DRST

C
C

21
22

C

Not connected

+24V

CCT0

C



24V
specificationC-RESET+24V

60+RESET

C

+SCN
-SCN

*3 The signal is connected when the encorder signal is used.
Connect the encorder signal to the line driver output circuit.

- 25 -



24V
specification

C-VX875

Instructions Manual
4‑3. Examples of Connection to Sensor(1) Example of sensor attachment(photosensor)【Linear sensors(ORG,NORG,LIMIT)】【Rotary sensor(ORG)】

Moving table

Grooved photosensor









Grooved photosensor

The flat board for
detection is fixed
to the table.

Circular disc with a slit

(attached to a motor axis)●Example of recommended sensors
Sensor that goes OFF upon receipt of light

Sensor that goes ON upon receipt of light

Maker
SUNX

RatingMaker
RatingPM‑□24SUNX
PM‑□24PM‑□44PM‑□44PM‑□54PM‑□54PM‑□64PM‑□64OMRON
EE‑SX910R
OMRON
EE‑SX910R
・Please contact us, when you use sensors other than the above.
(example: large 35mA article of consumption current etc.)

Remarks(Reference: Consumption
current and type)15mA or less・NPN Type
15mA or less・NPN Type
15mA or less・NPN Type
15mA or less・NPN Type
15mA or less・NPN Type(2) Example of connection to a limit sensor
X axis pin number are used in this example.
‑(CCW) direction

+O‑

J1
EXTV

○

CWLM

○

CCWLM

○

+(CW) direction

Sensor that goes ON+O‑upon receipt of light

Sensor that goes ON
upon receipt of light

14
1
2

+

24V PS‑Power supply for coupler

Controller side

・The initial value of the limit signal is active‑off (B contact) input.
Even when the limit signal is not used, the limit signal input must be connected to GND in orderto output pulses.
* Input logic of the limit signal can be switched. (Applied function)- 26 -

C-VX875

Instructions Manual(3) Example of connection to an origin sensor
X axis pin numbers are used in this example.
■When using the origin sensor only‑(CCW) direction+(CW) direction

ORG sensor that goes OFF+O‑ upon receipt of light

J1
EXTV

○

NORG

○

ORG

○

+ZORG

○

‑ZORG

○

14
3
4

+

24V PS‑Power supply for coupler

29
30

Controller side

■When using the origin sensor+origin proximity signal‑(CCW) direction

ORG sensor
Sensor that goes OFF
upon receipt of light

+O‑

+O‑

+(CW) direction

NORG sensor
Sensor that goes OFF
upon receipt of light

J1
EXTV

○

NORG

○

ORG

○

+ZORG

○

‑ZORG

○

14
3
4

+

24V PS‑

29
30

Controller side

- 27 -

Power supply for coupler

C-VX875

Instructions Manual■When using the Z‑phase signal of an encoder‑(CCW)direction

Servo motor
driver

+Z

+O‑

‑Z

+(CW) direction

NORG sensor
Sensor that goes OFF upon receipt of light

J1
EXTV

○

NORG

○

ORG

○

+ZORG

○

‑ZORG

○

14
3
4

+

24V PS‑Power supply for coupler

29*Connect the Z phase to the line driver output circuit.

30

Controller side

■When using the PO signal of stepping motor driver
Circular disk with a slit
attached to the rotating shaft‑(CCW) direction

ORG sensor
Sensor that goes ON
upon receipt of light

+O‑

+O ‑

+(CW) direction

NORG sensor
Sensor that goes OFF
upon receipt of light

Stepping
motor driver
PO R.GND

J1
EXTV

○

NORG

○

ORG

○

DEND/PO

○

+ZORG

○

‑ZORG

○

14
3
4
23

+

24V PS

29
30

Controller side- 28 -‑

Power supply for coupler

C-VX875

Instructions Manual
4‑4. Connection of AL‑Ⅱ communication system
Operation not anticipated may cause damage of the machine and the product.

 QAUTION

To prevent the malfunction by the noise, the AL‑Ⅱ I/O communications cable
recommends recommended cable.

(1) Core connection of AL‑Ⅱ I/O communications cable
Please install the core in the master side. And, the personal computer system including the AL‑Ⅱ
I/O communication is made to operated with stability.
The core is prepared by our company.

The core is fixed with INSULOK .

Please refer to the "connection/other" manual.

C-VX875 side
(Personal computer side )Core: ZCAT2032 - 0930

Installs it within 40 mm .

(2)Connection of terminator
C‑VX875 mounts the terminator of the AL‑Ⅱ I/O communication, is connected, and the setting is
unnecessary. It is necessary to install C‑VX875 to the AL‑Ⅱ I/O communication network edge.
Connect terminator (CB‑54/R) with the slave I/O unit arranged on the AL‑Ⅱ I/O communication
network edge. Do not connect the terminator with other equipment.
AL‑Ⅱ communication networkCore

Terminator
CB‑54/R

C‑VX875

2CB‑01v1/

2CB‑01v1/

2CB‑02v1/(Master)

3232‑MIL etc.

3232‑MIL etc.

1616‑MIL etc.

Terminator

Terminator

Terminator

Terminator

Always on(Inside)

Unconnection

Unconnection

Connection(3) Wiring distance of AL‑Ⅱ communication
The total wiring distance of the AL‑Ⅱ I/O communications cable is the following range including
the multidrop wiring.
・The wiring distance of Extend I/O doesn't relate to AL‑Ⅱ I/O communication baud rate (RATE).
・The wiring distance of Extend I/O from each slave is within 1 m.
L1 / RATE(Multi drop)

Terminator

Terminator(Build‑in)Address

Address=0=1

Address(Slave unit)=2

Address

Address

=3

=4

L2

(C‑VX875)(Extend I/O)

(Extend I/O)

(Extend I/O)

(Extend I/O)

●AL‑Ⅱ communication baud rate and wiring distance
RATE
Wiring distance
10 Mbps
20 Mbps
L1 (AL‑Ⅱ I/O communication)
50 m or less
30 m or less
L2 (Extend I/O communication)
1 m or less
●The number of slaves that can be connected directly with the AL‑Ⅱ I/O communication
are 4 units or less. Extend I/O that can be extended directly from the slave unit is notincluded in the number of slaves.

(4) Power supply and slave power supply for communication
The AL‑Ⅱ I/O communication power supply of each slave I/O unit is supplied from C‑VX875 throughthe communications cable so that the entire AL‑Ⅱ I/O communication network should not become
unstable when the power supply on each slave unit side is intercepted.
The reconnection of communications can be done by executing Environment‑Function to the master when
the power supply of the main unit on the slave I/O unit side is obstructed.

- 29 -

C-VX875

Instructions Manual
５．Maintenance
Incorrect handling may lead to an electric shock.

 CAUTION

Inspection and maintenance need to be conducted by an expert engineer only.
Before inspecting and maintaining this product, turn off the power.

An electric shock, injuries, and fire may be caused.

 CAUTION

Do not make repair and modification such as product disassembly and parts
replacement.

5‑1. Maintenance and Inspection(1) Cleaning method
To use the product in a favorable condition, conduct cycleic cleaning as follows.
・During the cleaning of the terminal plating part, wipe it with a dry, soft cloth.
・If stain is not removed by the dry wiping, soak a cloth in a solution in which neutral
detergent is diluted, wring it out, and wipe off the stain with it.
・Do not use a high‑volatile solvent such as benzene and thinner, and a wipe. This may
deteriorate gold plating by transformation and oxidation.
(2) Inspection method
To use the product in a favorable condition, conduct periodic inspection.
Usually conduct the inspection every six months or every year.
To use the product in an extremely hot and humid or dusty environment, shorten the inspection
interval.
Inspection item
Inspection details
Environment
Check whether ambient and intra‑device temperatures
state

0〜+ 45℃

Inspection method
Thermometerare appropriate.
Check whether ambient and intra‑device humidifies
are appropriate.
Check whether dust is deposited.

Installation
state

Criteria

Check whether the product is firmly secured.
Check whether connectors are completely inserted.
Check whether cables are to be removed.
Check whether connecting cables are to be broken.

10％〜80％RH(without dew
condensation)
No dustNot loose(6kg･cm)
Not loose and removed
Not loose and removed
Appearance is normal.

Hygrometer
Visual check
Torque wrench
Visual check
Visual check
Visual check(3) Replacement method
If the product becomes faulty, repair it immediately because the entire device system may beaffected.
To make the repair smoothly, a spare product should be prepared.
・To prevent an accident such as an electric shock during replacement, stop the device and turnoff the power.
・If poor contacting is assumed, wipe contacts with a clean cotton cloth that is wet withindustrial alcohol.
・Take a record of switch settings during replacement and return them to their state before thereplacement.
・After the replacement, confirm that the new product is normal.
・For the faulty product replaced, have it repaired by returning it to the company with areport indicating as much details on the failure as possible.
5‑2. Saving and Disposal(1) Saving method
Save the product in the following environment.
・Indoor (place in which the product is not in the path of direct sunlight)
・Place at ambient temperature and humidity within the specifications
・Place free of corrosive and inflammable gases
・Place free of dust, dirt, salt, and iron powder・Place free of direct vibration and shock to the product body・Place free of water, oil, and chemicals droplets
・Place where a person cannot ride or put objects on the product(2) Disposal method
Handle the product as industrial waste.

- 30 -

C-VX875

Instructions Manual

The main parts which revised by this manual
Parts

Content

None- 31 -

Technical Service
TEL.(042)664‑5382 FAX.(042)666‑5664
E‑mail s‑support@melec‑inc.com

Sales and Service
TEL.(042)664‑5384 FAX.(042)666‑2031
URL:http://www.melec‑inc.com
Melec Inc. Control equipment marketing department
516‑10,Higashiasakawa‑cho,Hachioji‑shi,Tokyo 193‑0834,Japan
This Operating Manual is subject to change without prior noticefor the purpose of product improvement.

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