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Inverters-FREQROL
FAQ within [ Inverters-FREQROL ]
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It is considered to be caused by inverter PWM control. It can be suppressed by raising the PWM carrier frequency (Pr.72), but the entire noise and leakage cu... More Details >>
- No:21428
- Release Date:2018/08/22 16:27
- Category: Inverters-FREQROL , FREQROL-E500
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Proper use of AC reactor and DC reactor
1. ACL has the input power factor of approximately 90% and DCL has the input power factor of approximately 95%. Therefore, DCL has a higher input power facto... More Details >>
- No:21949
- Release Date:2018/08/22 16:30
- Category: Inverters-FREQROL , Options
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Calculation of acceleration/deceleration time
As the inverter, you can basically use the equation below to calculate the acceleration/deceleration time.Note that you should consider a factor of 120% for ... More Details >>
- No:21965
- Release Date:2018/08/22 16:30
- Category: Magnet motor drive
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When Pr.79 is set to "3", the JOG operation is not available by turning ON the terminal JOG.Instead of the JOG function, you can set the low-speed RL of the ... More Details >>
- No:21760
- 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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The following causes are probable for persistent Err. display: 1. The terminals RES and SD are always short-circuited. 2. Operation panel contact or operatio... More Details >>
- No:21412
- Release Date:2018/08/22 16:27
- Category: Inverters-FREQROL , FREQROL-E500
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Automatic restart after instantaneous power failure
1. Yes. The inverter cannot restart if STF and STR are turned OFF.However, on the next startup, the inverter detects coasting and restarts.2. When automatic ... More Details >>
- No:21942
- Release Date:2018/08/22 16:30
- Category: Inverters-FREQROL , FREQROL-V200
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Operation under torque limit in the speed control mode
Under a 50% torque limit, if the commanded speed (50 Hz in your example) cannot be achieved without torque exceeding 50%, since the torque does not exceed th... More Details >>
- No:21483
- Release Date:2018/08/22 16:27
- Category: Inverters-FREQROL , FREQROL-V200
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PWM is an acronym for Pulse Width Modulation and varies the switching pulse width of transistors. This method creates many pulses within a single cycle of th... More Details >>
- No:21530
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , Others
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The FREQROL-A200 has magnetic flux vector control in addition to the conventional V/F control. Magnetic flux vector control controls the motor with higher ac... More Details >>
- No:21637
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , FREQROL-A200
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Set Pr.340 (Communication startup mode selection) to "1" or "2".Also, by setting Pr.79 (Operation mode selection) to "0", "2", or "6", the inverter enters th... More Details >>
- No:21879
- Release Date:2018/08/22 16:29
- Category: Inverters-FREQROL , FREQROL-E700 , FREQROL-A700 , FREQROL-F700 , FREQROL-F700P
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