Mitsubishi FR-E520-0.1KN Instruction Manual page 161

FR-PU04 Indication
Name
Description
Check point
Corrective action
FR-PU04 Indication
Name
Description
Check point
Corrective action
FR-PU04 Indication
Name
Description
Check point
Corrective action
FR-PU04 Indication
Name
Description
Check point
Corrective action
(2) Minor fault
FR-PU04 Indication
Name
Description
Check point
Corrective action
PU Leave Out
Parameter unit disconnection
This function stops the inverter output if communication
between the inverter and PU is suspended, e.g. the PU is
disconnected, when "2", "3", "16" or "17" was set in Pr. 75.
This function stops the inverter output if the number of
successive communication errors is greater than the number
of permissible retries when the Pr. 121 value is "9999" for
RS-485 communication from the PU connector.
• Check for loose fitting of the operation panel or FR-PU04.
• Check the Pr. 75 setting.
Fit the operation panel and FR-PU04 securely.
Retry No Over
Retry count exceeded
If operation cannot be resumed properly within the number of
retries set, this function stops the inverter output.
Find the cause of alarm occurrence.
Eliminate the cause of the error preceding this error
indication.
CPU Fault
CPU error
If the arithmetic operation of the built-in CPU does not end
within a predetermined period, the inverter self-determines it
as an alarm and stops the output.
Please contact your sales representative.
E. LF
Output phase failure protection
This function stops the inverter output if one of the three
phases (U, V, W) on the inverter's output side (load side)
results in open phase.
Check the wiring (Check the motor for a fault.)
Wire the cables properly.
Fan fault
Fan fault
For the inverter which contains a cooling fan, FN appears on
the operation panel when the cooling fan stops due to a fault
or operates differently from the setting of Pr. 244 "cooling fan
operation selection".
Check the cooling fan for a fault.
Change the fan.
145
PROTECTIVE FUNCTIONS
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