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FAQ within [ Drive Products ]
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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
- Category: Inverters-FREQROL , Others
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If the phase A and phase B are connected reversely, encoder feedback control is not performed. Instead, the inverter is operated in normal control (V/F contr... More Details >>
- No:21524
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , FREQROL-A500
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The outline dimensions of the FR-E520-7.5K are 180W×260H×170D. More Details >>
- No:21521
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , FREQROL-E500
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Acquisition of pressure-resistant explosion-proof certification
The test institutes assigned by the Minister of Health, Labour and Welfare (National Institute of Occupational Safety and Health and Technology Institution o... More Details >>
- No:21510
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , Others , FREQROL-B
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Inverter current characteristics
In general, relationship between T (torque), K (constant), V (voltage), I (current), and F (frequency) is expressed as "T = K × (V/F) × I". Since (V/F) is co... More Details >>
- No:21505
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , FREQROL-V200
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Motor heat generation at low-speed operation
When using the FR-A540-3.7K in Advanced magnetic flux vector control, operating the motor continuously under the 100% torque at up to 3 Hz does not cause a h... More Details >>
- No:21496
- Release Date:2018/08/22 16:27
- Category: Inverters-FREQROL , FREQROL-A500
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I use the dedicated motor SF-VR with the same capacity as the inverter. 1. Load fluctuationSpeed fluctuation ratio with the load fluctuation 0 to 100% is:Wit... More Details >>
- No:21490
- Release Date:2018/08/22 16:27
- Category: Inverters-FREQROL , FREQROL-V200
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Connection with pole change motor
Since the inverter allows for changing speed, fix the number of poles when using the pole change motor. It is recommended to fix the number of poles to four ... More Details >>
- No:21486
- Release Date:2018/08/22 16:27
- Category: Inverters-FREQROL , Others
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"Err" is displayed when STF signal turns ON
Possible causes are:1. The reset signal (RES) is ON. 2. The built-in CPU is not working properly due to contact faults of the inverter parts. Check the exte... More Details >>
- No:21484
- Release Date:2018/08/22 16:27
- Category: Inverters-FREQROL , FREQROL-E500
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Current value on input side and output side
1. When slight imbalance (approximately 5%) is present with the inverter power supply voltage, the inverter input current can get imbalanced significantly. I... More Details >>
- No:21476
- Release Date:2018/08/22 16:27
- Category: Inverters-FREQROL , FREQROL-A500 , FREQROL-A200
361-370 of Total 1368