When The Inverter Cannot Be Reset Immediately After The Trip - Toshiba TOSVERT VF-AS3 Instruction Manual

Important

■ When the inverter cannot be reset immediately after the trip

1) For overload (inverter) "OL1", overload (motor) "OL2" and overload (braking
resistor) "OLr", virtual cooling time is provided. During this time, the inverter
4
cannot be reset by external signal or from the operation panel.
The reference virtual cooling time is as follows.
4
• "OL1": approximately 30 seconds after the occurrence of a trip
• "OL2": approximately 120 seconds after the occurrence of a trip
• "OLr": approximately 20 seconds after the occurrence of a trip
For overload (IGBT) "OL3", there is no virtual cooling time.
2) In case of overheat "OH", the inverter checks the temperature within. Wait until
the temperature in the inverter falls sufficiently before resetting the inverter.
8
3) In case of overvoltage "OP1", "OP2" and "OP3", wait until the power circuit volt-
9
age decrease under the setting value of <F626: Overvoltage limit operation
level>.
4) The inverter cannot be reset while the emergency off signal is being input to the
input terminal.
5) The inverter cannot be reset while a pre-alarm occurs.
13
13. Trip information and measures
To retain the contents of the monitor at the time of the trip, set <F602: Trip record retention> to
"1: Retain at power off." Even after the inverter is reset with power off, the stored contents of
the trip are displayed.
For details, refer to [6. 30. 3].
• The inverter can be reset with power off, however, note that the equipment and the motor are
damaged if the power is turned off frequently.
13-14
E6582062