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Imbalanced input and output side power supplies
1. In general, the input power of the inverter is always larger than the output power because the inverter loss is added to the motor loss. 2. In both of cas... More Details >>
- No:21473
- Release Date:2018/08/22 16:27
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Countermeasure against inverter noise
You can attach the following filters to the inverter input side:- Line noise filter (FR-BLF, FR-BSF01)- Radio noise filter (FR-BIF) While it is a good idea ... More Details >>
- No:21528
- Release Date:2018/08/22 16:28
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The reactor built in the FREQROL-A201 series is intended to stabilize operation of the converter circuit and differs from the FR-BAL. Note that when performi... More Details >>
- No:21421
- Release Date:2018/08/22 16:27
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Yes. More Details >>
- No:21063
- Release Date:2018/08/22 16:25
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Do not carry out a pressure test. As for a megger test, carry out the test with 500 VDC as describes in the Instruction Manual of the inverter. More Details >>
- No:20967
- Release Date:2018/08/22 16:25
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You cannot reuse the parameter unit (FR-PU01) for the FREQROL-Z series, the parameter unit (FR-PU02) for the FREQROL-A200 and A100 series, and the parameter ... More Details >>
- No:21654
- Release Date:2018/08/22 16:28
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Installation dimensions of the heat sink panel through attachment
The heat sink panel through attachment to the FR-A520-5.5K inverter consist of the top installation frame, bottom installation frame, and upper cover. The to... More Details >>
- No:21520
- Release Date:2018/08/22 16:28
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It is not covered. More Details >>
- No:21132
- Release Date:2018/08/22 16:26
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Countermeasure against noise on input side
In general, the line noise filter (FR-BLF) is used against the power supply noise. The AC reactor also works. As other countermeasures:- Use a metal conduit ... More Details >>
- No:21517
- Release Date:2018/08/22 16:28
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Inverter circuit breaker selection
Since the inverter leakage current is in proportion to the switching voltage of the transistor of the main circuit, the leakage current for the 400 V system ... More Details >>
- No:21429
- Release Date:2018/08/22 16:27
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