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14. COMMUNICATION FUNCTIONS
14. COMMUNICATION FUNCTIONS
This servo amplifier has the RS-422 and RS-232C serial communication functions. These functions can be
used to perform servo operation, parameter changing, monitor function, etc.
However, the RS-422 and RS-232C communication functions cannot be used together. Select between RS-
422 and RS-232C with parameter No.16. (Refer to section 14.2.2)
14.1 Configuration
14.1.1 RS-422 configuration
(1) Outline
Up to 32 axes of servo amplifiers from stations 0 to 31 can be operated on the same bus.
CHARGE
MITSUBISHI
CHARGE
MITSUBISHI
CHARGE
MITSUBISHI
RS-422
Controller such as
personal computer
RS-232C/
RS-422
converter
To CN3
Axis 1 (Station 0)
Axis 2 (Station 1)
Axis 32 (Station 31)
Unavailable as option.
To be prepared by customer.
To CN3 To CN3
Servo amplifier Servo amplifier
Servo amplifier
(2) Cable connection diagram
Wire as shown below.
RS-422
output unit
RDP
RDN
SDP
SDN
GND
GND
(Note 3) 30m (98.4ft) or less
(Note 1)
Axis 1 servo amplifier
CN3 connector
5
15
9
19
11
1
10
Plate
RDP
RDN
SDP
SDN
LG
LG
TRE
SD
(Note 1)
Axis 2 servo amplifier
CN3 connector
5
15
9
19
11
1
10
RDP
RDN
SDP
SDN
LG
LG
TRE
SD
Plate
(Note 1)
Axis 32 (last axis)
servo amplifier
CN3 connector
5
15
9
19
11
1
10
RDP
RDN
SDP
SDN
LG
LG
TRE
SDPlate
(Note 2)
Note 1. Connector set MR-J2CN1 (3M)
Connector: 10120-3000PE
Shell kit: 10320-52F0-008
2. In the last axis, connect TRE and RDN.
3. 30m (98.4ft) or less in environment of little noise.