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FREQROL-A500
FAQ within [ FREQROL-A500 ]
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Inverter circuit breaker selection
Since the inverter leakage current is in proportion to the switching voltage of the transistor of the main circuit, the leakage current for the 400 V system ... More Details >>
- No:21429
- Release Date:2018/08/22 16:27
- Category: Inverters-FREQROL , Others , FREQROL-A500
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Since the stall prevention function works during acceleration and the inverter does not reach the commanded speed, set Pr.156 (Stall prevention operation sel... More Details >>
- No:21460
- Release Date:2018/08/22 16:27
- Category: Inverters-FREQROL , FREQROL-A500
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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
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Countermeasure against the fault occurrence
When a CC-Link communication fault occurs, the option error (OP3) occurs on the inverter and the output is shut off, and the motor starts coasting. When usin... More Details >>
- No:21531
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , FREQROL-A500
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Countermeasure against oil mist
1. You cannot use the inverter in an environment where it is exposed to oil mist. You need to enclose the inverter in an enclosure and then install the encl... More Details >>
- No:21538
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , FREQROL-A500
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Torque characteristic at low speed
Torque is not guaranteed for slower than 0.5 Hz. Therefore, no data for this is published. Also, no torque is generated at 0 Hz. More Details >>
- No:21543
- Release Date:2018/08/22 16:28
- Category: Inverters-FREQROL , FREQROL-A500
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Change Pr.18 (High speed maximum frequency) to 400 Hz.If you are using the analog command to set the frequency, calibrate the 400 Hz frequency with Pr.903. More Details >>
- No:21931
- Release Date:2018/08/22 16:30
- Category: Inverters-FREQROL , FREQROL-A500
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Since the FR-A540-0.75K has a brake transistor for resistor regenerative driving inside the inverter, you do not need to use BU. Just remove the jumper from ... More Details >>
- No:21992
- Release Date:2018/08/22 16:30
- Category: Inverters-FREQROL , FREQROL-A500
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Driving two motors with different capacities
It is OK to drive motors by switching the electromagnetic contactor on the inverter's output side.It is also OK if the motor capacity is small. However, if t... More Details >>
- No:22022
- Release Date:2018/08/22 16:30
- Category: Inverters-FREQROL , FREQROL-A500
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1. You can implement stop-on-contact.2. When implementing stop-on-contact, use the inverter to decelerate the motors to reduce the impact upon stop-on-contac... More Details >>
- No:22041
- Release Date:2018/08/22 16:30
- Category: Inverters-FREQROL , FREQROL-A500
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