12.1 Molded-Case Circuit Breakers and Fuses
12.1.2 Using a DC Power Supply
12
SERVOPACK Peripheral Devices
12-5
*3. If you use a DC power supply input with any of the following SERVOPACKs, externally connect an inrush current
limiting circuit and use the power ON and OFF sequences recommended by Yaskawa: SGD7S-330A, -470A, -
550A, -590A, or -780A.
There is a risk of equipment damage.
For information on the power ON and OFF sequences, refer to the product manual for the type of references
used by your SERVOPACK.
Σ-7W SERVOPACKs
*1. This is the net value at the rated load.
*2. These Fuses are manufactured by MERSEN Japan.
Note: If you connect more than one SERVOPACK to the same DC power supply, connect Fuses for each SERVO-
PACK.
Main
Circuit
Power
Supply
SERVOPACK
Model:
SGD7W-
Power Supply
Capacity per
SERVOPACK
[kVA]
*1
Current Capacity Inrush Current External Fuse
Main
Circuit
[Arms]
*1
Control
Power
Supply
[Arms]
Main
Circuit
[A0-p]
Control
Power
Supply
[A0-p]
Order Number
*2
Current
Rating
[A]
Voltage
Rating
[Vdc]
270
VDC
1R6A 1 3.0
0.25 34 34
3,5URGJ17/40UL 40
400
2R8A 1.9 5.8
5R5A 3.2 9.7
3,5URGJ17/63UL 63
7R6A 4.5 14
Fuse
DC power supply
(converter)
Fuse
M
M
+
B1/
2
+
−
U
V
W
U
V
W
SERVOPACK
SERVOPACK
B1/
2
+
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