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Cables and Peripheral Devices<br />

Peripheral Devices<br />

Inrush Current Suppression Devices<br />

Inrush current suppression devices prevent equipment from being damaged by inrush current.<br />

They are used only when using a SERVOPACK of 5 kW or higher (SGD7S-330A, -470A, -550A, -<br />

590A, or -780A) with a DC power supply input.<br />

Selection Table<br />

External Inrush Current Suppression Resistors<br />

Main<br />

Circuit<br />

Power<br />

Supply<br />

270 VDC<br />

SERVO-<br />

PACK<br />

Model:<br />

SGD7S-<br />

330A<br />

470A<br />

550A<br />

590A<br />

780A<br />

External Inrush Current<br />

Suppression Resistor<br />

Order Number<br />

Resistance<br />

[Ω]<br />

RH120-5ΩJ 5<br />

RH120-3ΩJ 3<br />

Rated<br />

Power<br />

[W]<br />

70<br />

Manufacturer<br />

Iwaki Musen<br />

Kenkyusho<br />

Co., Ltd.<br />

Inquiries<br />

Yaskawa<br />

Controls<br />

Co.,Ltd.<br />

Inrush Current Suppression Resistor Short Relays<br />

Main<br />

Circuit<br />

Power<br />

Supply<br />

270 VDC<br />

SERVO-<br />

PACK<br />

Model:<br />

SGD7S-<br />

Main Circuit<br />

DC<br />

Current<br />

[Arms]<br />

Recommended Inrush Current<br />

Suppression Resistor Short Relay<br />

Model<br />

Manufacturer<br />

Voltage<br />

Rating<br />

[Vdc]<br />

Current<br />

Rating<br />

[A]<br />

330A 34<br />

G9EA-1-B<br />

60<br />

470A 36<br />

550A 48 NO G9EA-1-B-CA 400 100<br />

590A 68 G9EA-1-B-CA *1<br />

200<br />

780A 92<br />

G9EC-1-B *2<br />

Contact<br />

Specification<br />

OMRON<br />

Corporation<br />

*1. Connect two Relays in parallel. Also, maintain the same resistance between the DC power supply and SERVO-<br />

PACK for the wiring for each Relay.<br />

*2. This Relay is applicable only when the temperature of the Relay installation environment is 50°C or less.<br />

Peripheral Devices<br />

445

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