Siemens SINAMICS G150 Reference Manual - Page 27

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3.3.3

Reduction of the output current

Fundamentals

The test reveals whether the current limiting controller actively intervenes in the drive control

when an output current reduction is simulated.

Test procedure

1. The auxiliary voltage is present.

2. The drive is switched on and controls the test station motor.

3. The output current is reduced with the current limiting controller.

4. The output current is further reduced until it is no longer sufficient to operate the motor.

Result

The test is passed if the appropriate messages are displayed on the test station computer, and

the drive is shut down.

SINAMICS G150 6SL37102G E11 F72 F76 F79 L45 L50 L57 L68 M54 U11

Reference Manual Rev.201902141443 LV Umrichter

The actual speed is displayed on the test station computer.

The speed decreases. The appropriate alarm is displayed on the test station computer.

The drive is switched off.

The motor coasts down. The appropriate fault is displayed on the test station computer.

3.3 Function test with the test station motor

Tests