E6581386
M-7
13
13.2 Method of resetting causes of 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.
For recovering inverter from trip status,
(1) By turning off the power (Keep the inverter off until the LED turns off.)
⇒ Refer to Section 6.26.2 (inverter trip retention selection H) for details.
(2) By means of an external signal (shorting RES and CC on control terminal board → release)
(3) By operation panel operation
(4) By means of a communication
⇒ For details, refer to the instruction manual for the communications device used
specified in section 6.36.
reset it in one of the following ways.
To reset the inverter by operation panel operation, follow these steps.
1. Check whether the LED on the control panel indicates that tripping has occurred. If the occurrence of tripping is
not indicated, press the MODE key to display it.
2. Press the STOP key and make sure that ENT is displayed.
3. Pressing the STOP key again will reset the inverter if the cause of the trip has already been eliminated.
If the inverter is tripped because of an overload on the braking resistor (QNT), it cannot be reset for approx. 20
seconds (virtual cooling period).
If the inverter is tripped because of an overload on the inverter (QN) or an overload on the motor (QN), it can
be reset even during the virtual cooling period (approx. 30 seconds for QN, or approx. 20 seconds for QN).
Note that the inverter is apt to be tripped during the cooling period.
If the inverter trips because of overheat (QJ), reset it after a considerably long time enough for cooling it down
completely, because overheat is detected based on its internal temperature.
- Caution -
For quickly recovering inverter from trip status, turn it off once and reset it. However, this measure is taken
frequently, it may cause damage to the motor and other component units.
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