E6581611
M-7
13
13.2 Restoring the inverter from a trip
Do not reset the inverter when tripped because of a failure or error before eliminating the cause. Resetting the
tripped inverter before eliminating the problem causes it to trip again.
The inverter can be restored from a trip by any of the following operations:
(1) By turning off the power (Keep the inverter off until the LED turns off.)
Note) See inverter trip hold selection for details.
(2) By means of an external signal (Short circuit across RES and CC (or P24) on control terminal block →
Open): The reset function must be assigned to the input terminal block. (function number 8, 9)
(3) By panel keypad operation
(4) By inputting a trip clear signal from communication
(Refer to communication manual (E6581913) for details.)
To reset the inverter by panel keypad operation, follow these steps.
1. Press the STOP key and make sure that is displayed.
2. Pressing the STOP key again will reset the inverter if the cause of the trip has already been eliminated.
● When any overload function [: inverter overload, : motor overload, : braking resistor
overload] is active, the inverter cannot be reset by inputting a reset signal from an external device or
by operation panel operation before the virtual cooling time has passed.
Virtual cooling time ... : about 30 seconds after the occurrence of a trip
: about 120 seconds after a occurrence of a trip
: about 20 seconds after a occurrence of a trip
● As to (Main module overload), there is no virtual cooling time.
● In case of a trip due to overheat (), the inverter checks the temperature within. Wait until the
temperature in the inverter falls sufficiently before resetting the inverter.
● The inverter cannot be reset while the emergency stop signal is being input from the terminal.
● The inverter cannot be reset while the pre-alarm is occurred.
[Caution]
Turning the inverter off then turning it on again resets the inverter immediately. You can use this mode of
resetting if there is a need to reset the inverter immediately. Note, however, that this operation may damage the
system or the motor if it is repeated frequently.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.ctiautomation.net - Email: info@ctiautomation.net
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