3/26/2015 2:55 PM | |
Posts: 2 Rating:
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About Siemens simovert p inverter’s problem.
Recently, I met two simovert p inverter’s problems 1. One inverter, when it operates in low speed(10Hz) and the motor has no load, the motor vibrates, and the R S T three phase current is unbalance. R and S phase current is about 50A, and the T phase current is 70A. When the inverter operates in higher speed(20~60Hz) and with no load, the motor current is balance.
2. Another inverter when it operates in higher speed(45~60HZ) and the motor has full load, the inverter strip, fault message is “12:line fault” or DC BUS Voltage is low or over current. When I measured the DC BUS voltage, it is about 607V, this inverter’s problem only happen when inverter operates in higher speed(45~60HZ) and with full load, when it operates with no load and the speed(0~60HZ), it is ok. |
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