Mitsubishi Electric FR-E 500 Instruction Manual page 182

Operation Panel Indication
Name
Description
Check point
Corrective action
Note: 2 This function is activated only when the optional brake resistor is connected.
Operation Panel Indication
Name
Description
Check point
Corrective action
Operation Panel Indication
Name
Description
Check point
Corrective action
Note:3 This function is activated only when OH has been set to any of Pr. 180 to
Pr. 183 (input terminal function selection).
Operation Panel Indication
Name
Description
Check point
Corrective action
E. BE
Brake transistor alarm detection (Note 2)
If a brake transistor fault occurs due to excessively large
regenerative energy from the motor, for example, that fault is
detected to stop the inverter output. In this case, the inverter
power must be switched off immediately.
Check for improper braking duty.
Change the inverter.
Please contact your sales representative.
E. GF
Output side ground fault overcurrent protection
This function stops the inverter output if a ground fault
overcurrent flows due to a ground fault which occurred in the
inverter's output (load) side.
Check for a ground fault in the motor and connection cable.
Remedy the ground fault portion.
E. OHT
External thermal relay operation (Note 3)
If the external thermal relay designed for motor overheat
protection or the internally mounted temperature relay in the
motor switches on (contacts open), the inverter output is
stopped. If the relay contacts are reset automatically, the
inverter will not restart unless it is reset.
• Check for motor overheating.
• Check that the value of 7 (OH signal) is set correctly in any
of Pr. 180 to Pr. 183 (input terminal function selection).
Reduce the load and operating duty.
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.
166
PROTECTIVE FUNCTIONS
FR-PU04
Br. Cct. Fault (Note)
FR-PU04 Ground Fault
FR-PU04
OH Fault
FR-PU04 Stll Prev STP
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