Method Of Resetting Causes Of Trip - Toshiba VF-PS1 Instruction Manual

[Pre-alarm display]
Error
code





If two or more problems arise simultaneously, one of the following alarms appears and blinks.
, , , , ......, 
The blinking alarms , , , , are displayed in this order from left to right.
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 ) 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
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  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 (), it cannot be reset for approx. 20
seconds (virtual cooling period).
If the inverter is tripped because of an overload on the inverter () or an overload on the motor (), it can be
reset even during the virtual cooling period (approx. 30 seconds for , or approx. 20 seconds for ). Note
that the inverter is apt to be tripped during the cooling period.
13
If the inverter trips because of overheat (), 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.
Description
Overcurrent pre-alarm Same as  (Overcurrent)
Overvoltage pre-alarm Same as  (Overvoltage)
Achieving PBR operation  blink while PBR is operating is not an
level error.
Overload pre-alarm Same as  and  (Overload)
Overheat pre-alarm Same as  (Overheat)
Communication error •Various transmission errors occur
when computer is linked up with
inverter system.
•Various transmission errors occur in
inverter to inverter communication
(slave side). Time-out or trip in master
side.
specified in section 6.36.
Possible causes
Same as  (Overcurrent)
Same as  (Overvoltage)
 blink while PBR is operating is not an
error.
Same as  and  (Overload)
Same as  (Overheat)
•For measures to correct various kinds
•Check the master inverter.
M-6
E6581386
Remedies
of data transmission errors, refer to
the instruction manual for the
communications device used specified
in Section 6.36.