Filter
Top Products
175
Errors (Alarms)
3
PROTECTIVE FUNCTIONS
Operation Panel Indication
PS FR-PU04 PS
Name
PU stop
Description
Pr. 75 "reset selection/PU stop selection" had been set and a stop
was made by pressing the of the operation panel or
parameter unit (FR-PU04) during operation in the external
operation mode.
Check point
Check for a stop made by pressing the of the operation
panel during external operation.
Corrective action Refer to page 116.
Operation Panel Indication
UV / F5J
/
Name
Undervoltage
Description
If the power supply voltage of the inverter decreases, the control
circuit will not operate properly and will result in decreased motor
torque or increased heat generation. To prevent this, if the power
supply voltage decreases below about 150VAC (below about
300VAC for the three phase 400V power input series), this function
stops the inverter output.
When undervoltage occurs during inverter operation, and
are displayed on the operation panel alternately.
Check point
• Check for a start of large-capacity motor.
• Check that the power supply capacity is as indicated in the
specifications (Refer to page 196.).
Corrective action
Check the power supply system equipment such as the power
supply.
STOP
RESET
STOP
RESET