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Inverters-FREQROL
FAQ within [ Inverters-FREQROL ]
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What applications are suitable?
Variable speed control of small-capacity motor and other applications for which small size and low cost are required. (Examples: Replacement for gears and pu... More Details >>
- No:21609
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , FREQROL-U100
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Do noise and leakage current increase?
During non-low-noise operation (initial setting) with the carrier frequency of 1 kHz, both noise and leakage current levels are almost same as the Z024 serie... More Details >>
- No:21606
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , FREQROL-A024
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Countermeasure against noise and leakage current during low-noise operation
The following two major countermeasures against noise are available: - Keep the noise source and partner device apart from each other.- Install a noise filte... More Details >>
- No:21605
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , FREQROL-A024
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Can I connect it to high power factor converter?
It can be connected to an inverter that supports the high power factor converter FR-HC. (It cannot be connected to conventional inverters.) How to identify i... More Details >>
- No:21602
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , FREQROL-A024
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Noise and leakage current (tone modulation control) of low-noise series
When the carrier frequency increases, noise and leakage current increase accordingly. To prevent the noise and leakage current from increasing while keeping ... More Details >>
- No:21599
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , FREQROL-U100
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What parameters (settings) are available?
The following three functions can be set: - Acceleration/deceleration time- Electronic thermal O/L relay- Maximum frequencyThe parameter unit is not used but... More Details >>
- No:21584
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , SC-A
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Difference from general-purpose inverter
In general, both are inverters using the same control method, however, the inverter speed controller limits functions compared with the general-purpose inver... More Details >>
- No:21582
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , SC-A
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Fault output signal when inverter trips
Only the unit type SC-A□□U has fault output signals. (Terminals Y1 and SD open collector output permissible load 24 VDC 0.1 A)The box type SC-A□□B indicates ... More Details >>
- No:21580
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , SC-A
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Faults history upon power failure
When an instantaneous power failure of 100 msec or longer occurs, the inverter is reset* and it is not recognized as a fault. Since it is not recognized as a... More Details >>
- No:21551
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , FREQROL-A500
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Sensitivity current of earth leakage circuit breaker
The rated sensitivity current of the earth leakage circuit breaker can be calculated using the following equation. If the result is 30 mA or less, the NV-FA ... More Details >>
- No:21547
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , Peripheral devices
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