Mitsubishi FR-E 500 Instruction Manual page 186

Operation Panel Indication
Name
Description
Check point
Corrective action
Operation Panel Indication
Name
Description
Check point
Corrective action
Note: 4 Only when the FR-E5NC is fitted to the three-phase 400V power input model.
Operation Panel Indication
Name
Description
Check point
Corrective action
Operation Panel Indication
Name
Description
Check point
Corrective action
E. OLT
Stall prevention
The running frequency has fallen to 0 by stall prevention
activated. (OL while stall prevention is being activated.)
Check the motor for use under overload.
Reduce the load weight.
E. OPT
Option alarm
Stops the inverter output if the inverter station is
disconnected from the system in the NET mode. (Note 4)
Also stops the inverter output if the dedicated option used in
the inverter results in setting error or connection (connector)
fault.
Check that the plug-in option connector is plugged securely.
Connect the plug-in option securely.
Please contact your sales representative.
E. PE
Parameter storage device alarm
A fault occurred in parameters stored (example: E
fault).
Check for too many number of parameter write times.
Please contact your sales representative.
E. PUE
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 control panel (FR-PA02-
FR-PU04.
• Check the Pr. 75 setting.
Fit the control panel (FR-PA02-
170
PROTECTIVE FUNCTIONS
FR-PU04 Stll Prev STP
FR-PU04 Option Fault
FR-PU04 Corrupt Memory
FR-PU04 PU Leave Out
) and FR-PU04 securely.
02
2
PROM
) or
02