YASKAWA SGD7W - 12.9 Inrush Current Suppression Devices

12.9 Inrush Current Suppression Devices
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SERVOPACK Peripheral Devices
12.9 Inrush Current Suppression Devices
Inrush current suppression devices prevent equipment from being damaged by inrush current.
They are used only when using a SERVOPACK of 5 kW or higher (SGD7S-330A, -470A, -550A,
-590A, or -780A) with a DC power supply input.
Selection Table
 External Inrush Current Suppression Resistors
 Inrush Current Suppression Resistor Short Relays
*1. Connect two Relays in parallel. Also, maintain the same resistance between the DC power supply and SERVO-
PACK for the wiring for each Relay.
*2. This Relay is applicable only when the temperature of the Relay installation environment is 50°C or less.
Main
Circuit
Power
Supply
SERVOPACK
Model:
SGD7S-
External Inrush Current
Suppression Resistor
Manufacturer Inquiries
Order Number
Resistance
[
Ω ]
Rated
Power
[W]
270 VDC
330A
RH120-5ΩJ5
70
Iwaki Musen
Kenkyusho
Co., Ltd.
Yaskawa
Controls
Co., Ltd.
470A
550A
590A
RH120-3
ΩJ3
780A
Main
Circuit
Power
Supply
SERVOPACK
Model:
SGD7S-
Main Circuit
DC Current
[Arms]
Contact
Specification
Recommended Inrush Current
Suppression Resistor Short Relay
Manufacturer
Model
Voltage
Rating
[Vdc]
Current
Rating [A]
270 VDC
330A 34
NO
G9EA-1-B
400
60
OMRON
Corporation
470A 36
550A 48 G9EA-1-B-CA 100
590A 68
G9EA-1-B-CA
*1
G9EC-1-B
*2
200
780A 92