Mitsubishi Electric FR-E560 Series Instruction Manual page 184

Operation Panel Indication
Name
Description
Check point
Corrective action
Operation Panel Indication
Name
Description
Check point
Corrective action
Operation Panel Indication
Description
Corrective action
oL
Stall prevention (overvoltage)
During If the regenerative energy of the motor
deceleration increases too much to exceed the brake
capability, this function stops the decrease in
frequency to prevent overvoltage shut-off. As
soon as the regenerative energy has reduced,
deceleration resumes.
Check for sudden speed reduction.
The deceleration time may change. Increase the deceleration
time using Pr. 8 "deceleration time".
PS
PU stop
A stop made by pressing the
in Pr. 75 "PU stop selection".
Check for a stop made by pressing the
operation panel during external operation.
Refer to page 110.
Err.
This alarm appears if:
• The RES signal is on;
• You attempted to set any parameter value in the external
operation mode;
• You attempted to change the operation mode during
operation;
• You attempted to set any parameter value outside its setting
range.
• You attempted to set any parameter value during operation
(while signal STF or STR is ON).
• You attempted to set any parameter value while parameter
write is being inhibited in Pr. 77 "parameter write disable
selection".
Perform operation correctly.
174
PROTECTIVE FUNCTIONS
FR-PU04 oL
FR-PU04 PS
STOP
key of the PU has been set
RESET
STOP
key of the
RESET