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CHARGE
ALARM
FREQROL-A500L
Left LED
Brake unit
cooling fin
overheating
DC fuse
blown
Control
board
ambient
temperature
error
Output
overcurrent
Right LED
Cooling fan
power
supply error
overcurrent
Cooling fin
overheat
Gate power
supply error
* For example, if the display is , the DC fuse blown, overcurrent and gate power supply
errors have occurred.
There are two 7-segment LEDs on the
right of the operation panel as shown
on the right. The following fault details
are indicated by the LED display.