YASKAWA SGD7S Product Manual page 104

4.3 Wiring the Power Supply to the SERVOPACK
4.3.4 Power Supply Wiring Diagrams
• Wiring Example for DC Power Supply Input: SGD7S-330A, -470A, -550A, -590A, and
-780A
4-20
R S T
1QF
3SA
1FLT
2KM
1KM
1Ry
Servo power Servo power
ON
1KM
1KM 1Ry
1QF: Molded-case circuit breaker
1FLT: Noise Filter
1KM: Magnetic Contactor
(for control power supply)
2KM: Magnetic Contactor
(for main circuit power supply,
auxiliary contact)
1FU: Fuse, positive side
2FU: Fuse, negative side
1Ry: Relay
2Ry: Relay (for inrush current
suppression resistor switch)
1TRy: Timer relay
1PL: Indicator lamp
SERVOPACK
1FU
B1/
1R
AC/DC
2FU
1TRy
2Ry
4SA
L1C
AC/DC
L2C
L1
(For servo alarm
L2
display)
L3
1PL
B2
OFF
1KM
+24 V
1SA
2KM
2SA
1SA: Surge Absorber
2SA: Surge Absorber
3SA: Surge Absorber
4SA: Surge Absorber
5SA: Surge Absorber
1D: Flywheel diode
1R: External inrush current
suppression resistor
+
2
+24 V
CN1
1Ry
3
ALM +
4 −
1D 0 V
ALM
1
2Ry
1TRy 0 V
5SA