Yaskawa Sigma-5 User Manual: Design and Maintenance - Rotary Motors - Manual (Page 61)

3.1 Main Circuit Wiring
3-17
Wiring and Connection
3.1.5 Using More Than One SERVOPACK
This section shows an example of the wiring when more than one SERVOPACK is used and the precautions.
(1) Wiring Example
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.
(2) Precautions
Multiple servos can share a single molded-case circuit breaker (1QF) and a noise filter. Always select a 1QF
and a noise filter that has enough capacity for the total power capacity (load conditions) of those servos.
1KM
R S T
1QF
2KM
1Ry
+24 V
L1
L2
L3
L1C
CN1
CN1
CN1
3 ALM+
4 ALM -
0 V
L2C
1FLT
M
L1
L2
L3
3 ALM+
4 ALM -
L1
L2
L3
L1C
ID
3 ALM+
4 ALM -
L2C
M
M
L1C
L2C
3SA
1KM
1Ry
1PL
1KM
2KM
1SA
1Ry 1KM
2SA
SERVOPACK
Servomotor
Servomotor
Servomotor
Relay
terminal
Relay
terminal
Relay
terminal
1QF:
1FLT:
1KM: Magnetic contactor
(for control power supply)
2KM:
(for main power supply)
1Ry:
1PL:
1SA:
2SA:
3SA:
1D: Molded-case circuit breaker
Noise filter
Relay
Magnetic contactor
Indicator lamp
Surge absorber
SERVOPACK
SERVOPACK
Surge absorber
Surge absorber
Flywheel diode
supply ON
Power supply
Relay
terminal
(For servo alarm
display)
Servo power
supply OFF
Servo power