Causes And Corrective Actions - Mitsubishi FR-F800-E Instruction Manual

Causes and corrective actions

4.4
Causes and corrective actions
Alarm
Operation panel
indication
Name
Description
Check point
Corrective action
Fault
Operation panel
indication
Name
Description
Check point
Corrective action
86
PROTECTIVE FUNCTIONS
FN2
Internal-circulation fan alarm
FN2 appears on the operation panel when the internal air circulation fan stops due to a fault or low rotation
speed.
Check the internal air circulation fan for a failure.
The fan may be faulty. Please contact your sales representative.
Abnormal Intnl Temp
Abnormal internal temperature
The inverter trips when the inverter internal temperature reaches the specified value or higher.
• Check for too high surrounding air temperature.
• Check if the internal air circulation fan or the cooling fan stops due to a fault.
• Install an inverter suitable for the installation environment. (Refer to
• Replace the internal air circulation fan or the cooling fan.
page 21.)