YASKAWA Sigma-V Series User Manual page 65

(2) Multi-axis Application
Connect the alarm output (ALM) terminals for three SERVOPACKs in series to enable alarm detection relay
1RY to operate. When the alarm occurs, the ALM output signal transistor is turned OFF.
The following diagram shows a wiring example for three-phase, 400-VAC SERVOPACK with converter.
Three-phase,
400 VAC
R S T
1QF
3SA
1FLT
2KM
+
DC power
100/200 VAC
supply (24 V)
-
(For servo alarm
display)
1Ry
1PL
Servo power Servo power
1KM
supply ON supply OFF
1SA
1KM
2KM
1Ry
1KM
2SA
a b
1QF: Molded-case circuit breaker
2QF: Molded-case circuit breaker
3QF: Molded-case circuit breaker
4QF: Molded-case circuit breaker
1FIL: Noise filter
1KM: Magnetic contactor
(for control power supply)
Precautions
Multiple SERVOPACKs and converters can share a single molded-case circuit breaker (1QF) or noise filter.
Always select a molded-case circuit breaker or noise filter that has enough capacity for the total power supply
capacity (load conditions) of the SERVOPACKs and converters.
Relay
terminal
Relay
terminal
1KM
Relay
terminal
Relay
terminal
2KM: Magnetic contactor
(for main power supply)
1Ry: Relay
1PL: Indicator lamp
1SA: Surge absorber
2SA: Surge absorber
3SA: Surge absorber
1D: Flywheel diode
2QF
Converter SERVOPACK
L1 P P
U
L2 N N V
L3
W
CN103
CN103
CN1
1Ry
CN901
ALM+
31
Relay
CN901
CN101
terminal
ALM- 1D
32
24 V
0 V
3QF
Converter SERVOPACK
L1 P
P U
L2 N N V
L3
W
CN103 CN103
CN1
ALM+
31
CN901
Relay
CN901
terminal
CN101
ALM-
32
24 V
0 V
4QF
Converter SERVOPACK
L1 P P
U
L2 N N V
L3 W
CN103
CN103
CN1
31 ALM+
CN901
CN901
CN101
0 V
ALM-
32
24 V
0 V
3.1 Main Circuit Wiring
U
V
W
C B A
Fan
Thermostat
1
a
M
1b
+24 V
U
V
W
C B A
Fan
Thermostat
1
M
1b
U
V
W
C B A
Fan
Thermostat
1
M
b
1b
3-17
3