Yaskawa SGDS Sigma III Servo Amplifier - Manual (Page 125)

5 Wiring
5.6.3 Using More Than One SERVOPACK
5-22
5.6.3 Using More Than One SERVOPACK
The following diagram is an example of the wiring when more than one SERVOPACK is used.
Connect the alarm output (ALM) terminals for the three SERVOPACKs in series to enable alarm detection relay
1RY to operate.
When the alarm occurs, the ALM output signal transistor is turned OFF.
Multiple servos can share a single molded-case circuit braker (QF) or noise filter. Always select a QF or noise
filter that has enough specifications for the total power capacity (load conditions) of those servos. For details,
refer to 2.5.2 Molded-case Circuit Breaker and Fuse Capacity.
• Wire the system to comply to National Electrical Code.
R S T
QF
1KM
1KM 1RY
PRT
1KM
1RY
+24V
L1
L2
L3
L1C
CN1
31 ALM+
32 ALM-
0V
M
L2C
M
M
Power supply
Noise
filter
Power
ON
Power
OFF
SERVOPACK
Servomotor
Servomotor
Servomotor
L1
L2
L3
L1C
CN1
31 ALM+
32 ALM -
L2C
SERVOPACK
L1
L2
L3
L1C
CN1
31 ALM+
32 ALM -
L2C
SERVOPACK