Instruction manual

6. Programming Features

 Continuing Operation Using Automatic Retry Attempts (n082)

When the fault retry function is selected, stand clear of

the Inverter or the load. The Inverter may restart sud-

denly after stopping.

(Construct the system to ensure safety, even if the

Inverter should restart.) Failure to observe this warn-

ing may result in injury.

The Inverter can be set to restart and reset fault detection after a fault

occurs. The number of self-diagnosis and retry attempts can be set to up

to 10 in n082. The Inverter will automatically restart after the following

faults occur:

OC (overcurrent)

OV (overvoltage)

The number of retry attempts is cleared to 0 in the following cases:

1. If no other fault occurs within 10 minutes after retry

2. When the FAULT RESET signal is ON after the fault is detected

3. When the power supply is turned OFF

 Operating a Coasting Motor without Tripping

To operate a coasting motor without tripping, use the SPEED SEARCH

command or DC Injection Braking at Startup.

SPEED SEARCH Command

Restarts a coasting motor without stopping it. This function enables

smooth switching between motor commercial power supply operation

and Inverter operation.

Set a Multi-function Input Selection (n050 to n056) to 14 (SEARCH

command from maximum output frequency) or 15 (SEARCH command

from set frequency).

Build a sequence so that a FWD (REV) RUN command is input at the

same time as the SEARCH command or after the SEARCH command.

If the RUN command is input before the SEARCH command, the

SEARCH command will be disabled.

WARNING