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Inverters-FREQROL
FAQ within [ Inverters-FREQROL ]
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The inverter overcurrent shut-off fault indication E.OC1, E.OC2, or E.OC3 is not only displayed when the inverter output current reaches approximately 200% o... More Details >>
- No:21519
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , FREQROL-A200
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Measure the megger values on the inverter's output side.If there is no problem:If the motor capacity is extremely smaller than the inverter capacity (as a gu... More Details >>
- No:21933
- Release Date:2018/08/22 16:30
- Category: Inverters-FREQROL , FREQROL-A500 , FREQROL-E500
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Energy saving effect of inverter operation
Energy saving operation of the inverter is represented by comparison with commercial power supply operation. For example, to control air volume of an air co... More Details >>
- No:21622
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , FREQROL-B , FREQROL-A024 , FREQROL-V200 , FREQROL-A200 , FREQROL-A100 , FREQROL-U100 , FREQROL-Z100 , FREQROL-Z200 , SC-A , FREQROL-Z123 , FREQROL-Z300 , FREQROL-Z020 , FREQROL-F400 , FREQROL-Z024
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"PS" is displayed when the inverter is stopped with the "STOP/RESET" button from PU. The PU stop (PS) release method is as follows. (1) Release method using ... More Details >>
- No:21264
- Release Date:2018/08/22 16:26
- Category: Inverters-FREQROL , FREQROL-E700 , FREQROL-D700 , FREQROL-A700 , FREQROL-F700 , FREQROL-F700P , FREQROL-F700PJ
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Inverter drive of 400 V class motor
When the wiring between the inverter and motor is long, surge voltage occurs at the terminal of the motor.This surge voltage deteriorates insulation of the m... More Details >>
- No:21926
- Release Date:2018/08/22 16:30
- Category: Inverters-FREQROL , FREQROL-B , FREQROL-A500 , FREQROL-F500 , FREQROL-A024 , FREQROL-E500 , FREQROL-V200 , FREQROL-A200 , FREQROL-S500 , FREQROL-A100
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Rapid blinking of the RUN LED suggests that the frequency is not set correctly.When the operation mode setting of Pr.79 is changed, the entrance point of the... More Details >>
- No:21757
- Release Date:2018/08/22 16:29
- Category: Inverters-FREQROL , FREQROL-E700 , FREQROL-D700 , FREQROL-A700 , FREQROL-F700 , FREQROL-F700P , FREQROL-F700PJ
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Deceleration overvoltage (E.OV3)
While the FREQROL-Z200 series and A500 series have a brake resistor built in the capacity up to 7.5K, the FREQROL-E500 series does not have a built-in brake ... More Details >>
- No:21993
- Release Date:2018/08/22 16:30
- Category: Inverters-FREQROL , FREQROL-E500
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Error "E.UVT" (undervoltage protection)
The possible causes of the error UVT are as follows.- Low power supply voltage - Insufficient power supply capacity - Damage or failure Check the power suppl... More Details >>
- No:21295
- Release Date:2018/08/22 16:26
- Category: Inverters-FREQROL , FREQROL-E700 , FREQROL-D700 , FREQROL-A700 , FREQROL-F700 , FREQROL-F700P , FREQROL-F700PJ
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Surge voltage of 400 V inverter
No. Although the carrier frequency increases or decreases the switching count, the switching speed is the OFF-to-ON speed of the IGBT element of the inverter... More Details >>
- No:21401
- Release Date:2018/08/22 16:27
- Category: Inverters-FREQROL , FREQROL-A500 , FREQROL-F500 , FREQROL-A024 , FREQROL-E500 , FREQROL-V200 , FREQROL-A200 , FREQROL-S500 , FREQROL-A100
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What happens if reset occurs during operation?
This is because when the inverter restarts while the motor is coasting, an overcurrent trip can occur during the restart process. However, the recent types o... More Details >>
- No:21477
- Release Date:2018/08/22 16:27
- Category: Inverters-FREQROL , FREQROL-A024 , FREQROL-E500 , FREQROL-V200 , FREQROL-A200 , FREQROL-A100 , FREQROL-U100 , Common
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