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  • No : 21484
  • Release Date : 2018/08/22 16:27
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"Err" is displayed when STF signal turns ON

I use the FR-E520.
The inverter had operated normally until yesterday, but it does not today.
The following phenomena are observed:
1. "Err" blinks on the display in 1 or 2 seconds after turning ON the STF signal.
2. Frequency display remains "00".
3. Why is the error number not displayed?
Category : 

Answer

Possible causes are:
1. The reset signal (RES) is ON.
2. The built-in CPU is not working properly due to contact faults of the inverter parts.

Check the external terminal wiring again. If they are connected correctly, you need to have the inverter inspected. Consult the nearest Mitsubishi FA Center.
Product Name
Inverter, magnet motor drive
Product Category
Inverter
Series
FR-E500

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