YASKAWA SGD7S Product Manual page 115

• Wiring Example for DC Power Supply Input: SGD7S-330A, -470A, -550A, -590A, and
-780A
R S T
1QF
3SA
1FLT
Servo power
ON
1KM
1KM
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
1FU
2KM
AC/DC 1R
2FU
1TRy
2Ry
4SA
1KM
AC/DC
(For servo alarm
display)
1Ry
1PL
Servo power
OFF
1KM
1SA
2KM
1Ry
2SA
4.3 Wiring the Power Supply to the SERVOPACK
4.3.4 Power Supply Wiring Diagrams
SERVOPACK
+
B1/
2
L1C
L2C
+24 V
CN1
1Ry
3
ALM +
L1
L2
L3
4 −
1D 0 V
ALM
B2
1
+24 V
2Ry
1TRy 0 V
5SA
1SA: Surge Absorber
2SA: Surge Absorber
3SA: Surge Absorber
4SA: Surge Absorber
5SA: Surge Absorber
1D: Flywheel diode
1R: External inrush current
suppression resistor
4
4-19