4-2 Function Mode Power Recovery Restart Prevention Function For safety reasons, this function causes a USP trip (E13) while the RUN command (FW/RV) from the control terminal (terminal) is turned on, in either of the following conditions: • When the power is turned on • After an undervoltage trip is reset 4 Functions •You can reset a USP trip by tuning off the RUN command (example 1) or resetting the Inverter. The Inverter starts running immediately after a trip reset if the RUN command is still turned on. (Example 2) •To return from a USP trip to normal operation, shut off the power, turn off the RUN command, turn on the power again, and then turn on the RUN command.
(Example 3) •Allocate 13 (USP) to the desired multi-function input. •The following shows how this function works. (Example 1) Power supply (Example 2) Power supply (Example 3) Power supply USP FW USP FW USP FW RS RS RS Alarm Alarm Alarm Output frequency Output frequency Output frequency Soft Lock Function Use this function to prohibit rewriting of each parameter. This helps prevent data rewriting due to erroneous operation. •Allocate 15 (SFT) to the desired multi-function input. 4-55 Data Symbol Function name Status Description 13 USP USP function ON Does not start the Inverter with the power turned on while the RUN command is input.
OFF Starts the Inverter with the power turned on while the RUN command is input. Related functions C001 to C005 Data Symbol Function name Status Description 15 SFT Soft lock ON Rewriting is unacceptable except for specified parameters. OFF Depends on the b031 setting. Related functions C001 to C005 Required settings b031 (soft lock excluded)