Toshiba VF-S9 manual Restoring the inverter from a trip

Models: VF-S9

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13.2 Restoring the inverter from a trip

E6580757

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) Refer to 6.15.3 (inverter trip retention selection Manual background ) for details.

(2)By means of an external signal (Short-circuiting of control terminals RST and CC)

(3)By operation panel operation

(4)By inputting a trip clear signal from a remote input device (Refer to the remote input device operating manual for details.)

To reset the inverter by operation panel operation, follow these steps.

1.Press the STOP key and make sure that Manual background is displayed.

2.Pressing the STOP key again will reset the inverter if the cause of the trip has already been elimi- nated.

When any overload function [ Manual background : inverter overload, Manual background : motor overload, Manual background : braking re- sistor overload] is active, the inverter cannot be reset by inputting a reset signal from an external de- vice or by operation panel operation before the virtual cooling time has passed.

Virtual cooling time ... Manual background : about 30 seconds after the occurrence of a trip

Manual background : about 120 seconds after the occurrence of a trip

Manual background : about 20 seconds after the occurrence of a trip

In the case of a trip due to overheating (Manual background), the inverter checks the temperature within. Wait until the temperature in the inverter falls sufficiently before resetting the inverter.

Manual background [Caution]

Manual background Turning the inverter off then turning it on again resets the inverter immediately. You can use this mode of re-

Manual background setting if there is a need to reset the inverter immediately. Note, however, that this operation may damage the Manual background system or the motor if it is repeated frequently.

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Page 188
Image 188
Toshiba VF-S9 manual Restoring the inverter from a trip