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FAQ within [ FREQROL-A700 ]
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Automatic restart after instantaneous power failure
The inverter restart operation is disabled at turn-OFF of the CS signal while a value other than "9999" (with restart) is set in Pr.57. The terminals CS and ... More Details >>
- No:21255
- Release Date:2018/08/22 16:26
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Real sensorless vector control
For tuning of a single motor with no load, set Pr.96 to "101". When a load is connected, set Pr.96 to "1" (without motor rotation). Since Real sensorless vec... More Details >>
- No:21325
- Release Date:2018/08/22 16:27
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Output frequency monitor value
When running the inverter after auto tuning, the frequency setting value is increased by the amount of the motor slippage, resulting in a higher monitor valu... More Details >>
- No:21781
- Release Date:2018/08/22 16:29
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No. Check the parameter setting of the A700, and then adjust the parameter setting of the A800 to those of the A700. For the details, refer to the replacemen... More Details >>
- No:21107
- Release Date:2018/08/22 16:25
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Advanced magnetic flux vector control
Check the parameters necessary for tuning again.Check if Pr.9 (Electronic thermal O/L relay) and Pr.81 (Number of motor poles) are set correctly. More Details >>
- No:21754
- Release Date:2018/08/22 16:29
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Turn OFF the BOF signal when switching the operation from forward rotation to reverse rotation. More Details >>
- No:21184
- Release Date:2018/08/22 16:26
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The stop-on-contact control does not function in the combined operation mode. Perform the control in the External operation mode. More Details >>
- No:21354
- Release Date:2018/08/22 16:27
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Since the Advanced magnetic flux vector control method uses slip compensation to compensate the frequency, the value is not shown as exactly 60 Hz.For V/F co... More Details >>
- No:21807
- Release Date:2018/08/22 16:29
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It is protected not by observing the temperature directly, but by estimating it from the current value, output frequency, and carrier frequency. More Details >>
- No:20871
- Release Date:2018/08/22 16:24
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The value of Pr.20 (Acceleration/deceleration standard frequency) is corresponding to 1 s. (Initial value: 60 Hz) More Details >>
- No:21185
- Release Date:2018/08/22 16:26
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