Reset and Restart
The inverter can be set to automatically reset faults and restart operations. See caution below.
When Pr.08 is set to 1 (yes) and a run command remains enabled, the inverter will reset the fault
and restart. The number of restarts is set with Pr.09 (# of restarts) and the delay time between each
restart is set with Pr.10 (restart delay time). When a fault occurs, the inverter cuts off the output and
the motor will free-run. Another fault may be triggered if the inverter begins its operation while
motor load is in a free-run state.
Selection of startup on trip
reset
Number of automatic
restarts
• Automatic Reset/Restart and Speed Search: A fault may be triggered if the inverter
starts operation while the load is still rotating. With Automatic reset/restart enabled,
the inverter will begin its operation in a normal V/F pattern and accelerate the motor.
To prevent faults, set speed search CN-71, bit 2 to 1. The inverter will perform a speed
search at the beginning of the operation.
• With automatic reset/restart not enabled, if the inverter has a run command enabled
during a fault reset, it will not start. The digital input (Run command) must first be de-
activated and reapplied to begin operation.
Take caution - With Automatic Reset/Restart enabled and a Run command applied,
the motor will begin rotating as soon as the inverter is reset.