Yaskawa Sigma Mini - Manual (Page 117)

2.8Special Wiring
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2.8.3 Using More Than One Servo Drive
The following diagram shows an example of wiring more than one Servo Drive.
M
M
M
CN1-8
ALM
CN1-3
SG-COM
CN1-8
ALM
CN1-3
SG-COM
CN1-8
ALM
CN1-3
SG-COM
1RY
1MC
QF
1MC 1RY
1MC
SUP
0 V
Power supply
Servopack
Servomotor 24 VDC
0V (24V)
Servopack
24 VDC
0V (24V)
Servomotor
Servopack
24 VDC
0V (24V)
Servomotor
Noise filter
Power
OFF Power
ON
AC/DC
power
supply
+24 V
Connect the alarm output (ALM) terminals for the three Servopacks in series to enable alarm
detection relay 1RY to operate. This is because ALM is a logical complement output signal,
so the output transistor is turned OFF when the system enters an alarm state.
2