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FREQROL-A500
FAQ within [ FREQROL-A500 ]
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Changing main speed at analog signal input
To change the running frequency while the frequency command is input to the terminal 2, adjust the parameters in the following steps:1. Change Pr.77 to "2".2... More Details >>
- No:22025
 - 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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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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"8" display in offline auto tuning means forced stop by the operator. This means that you stopped operation before tuning completes. With this forced stop, ... More Details >>
- No:21527
 - Release Date:2018/08/22 16:28
 - Category: Inverters-FREQROL , FREQROL-A500
 
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The inverter (FR-A520-5.5K) itself generates approximately 310 W of heat. This is the amount generated under the inverter rated current 100% load. Since the ... More Details >>
- No:21523
 - Release Date:2018/08/22 16:28
 - Category: Inverters-FREQROL , FREQROL-A500
 
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Controlling multiple VVVFs via communication from personal computer
To control multiple inverters using arbitrary signals (4 to 20 mA) simultaneously, it is recommended to connect the signals (4 to 20 mA) in series. (This doe... More Details >>
- No:21491
 - Release Date:2018/08/22 16:27
 - Category: Inverters-FREQROL , FREQROL-A500
 
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Use the first contact (relay) for the forward (or reverse) rotation between the terminals STF and SD. Use the second contact (relay) for the high-speed comma... More Details >>
- No:21472
 - Release Date:2018/08/22 16:27
 - Category: Inverters-FREQROL , FREQROL-A500
 
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When you use a long wire between the inverter and motor, pay attention to the following: 1. Since the voltage supplied to the motor terminal is reduced due t... More Details >>
- No:21441
 - Release Date:2018/08/22 16:27
 - Category: Inverters-FREQROL , FREQROL-A500
 
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Countermeasures when input power supply is turned off upon equipment fault
1. When the inverter power supply is turned OFF, the inverter is disconnected from the CC-Link network. However, since the CC-Link master station has the aut... More Details >>
- No:21390
 - Release Date:2018/08/22 16:27
 - Category: Inverters-FREQROL , FREQROL-A500 , FREQROL-E500
 
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Since the brake sequence function requires Advanced magnetic flux vector control and advanced flux control is applied to 0.4 kW or higher motors, you cannot ... More Details >>
- No:22075
 - Release Date:2018/08/22 16:30
 - Category: Inverters-FREQROL , FREQROL-A500
 
 
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