Mitsubishi FR-E500 Series Instruction Manual page 148

FR-PU04 Indication
Name
Description
Check point
Corrective action
FR-PU04 Indication
Name
Description
Check point
Corrective action
(2) Minor fault
The output is not shut off when the protective function is activated. You can make
parameter setting to output the minor fault signal. (Set "98" in Pr. 192 "A, B, C terminal
(ABC) function selection". Refer to page 120.)
FR-PU04 Indication
Name
Description
Check point
Corrective action
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.)
• Check that the capacity of the used motor is not smaller than the
inverter capacity.
• Wire the cables properly.
Fan Failure
Fan fault
For the inverter which contains a cooling fan, this indication appears
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.
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PROTECTIVE FUNCTIONS
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