6. Function Description
6-48
6.4.10 Restart after fault reset
1) FUN_60 (number of auto restart try)
2) FUN_61 (delay time before auto restart)
This function prevents the permanet stop of the inverter due to the trip. The inverter automatically resets the fault
and restarts and continues to run after the fault occurs if the number of automatic restart is set and the inveter
operation is possible.
Code LCD display Description Setting range Unit Factory setting
FUN_60 Retry Number
Number of auto restart
try
0 ~ 10 0
FUN_61 Retry Delay
Delay time before
Auto restart
0.0 ~ 60.0 sec 1.0
In case the inverter trip occurs, the inverter restarts by ‘The number of automatic restart’ at FUN_60. In case of the
inverter trip, the inverter resets the fault automatically and waits for ‘Delay time before automatic restart’ at
FUN_61 and restarts. The inverter will not restart any more, blocks the IGBT gating signals and issues the trip message
if the inverter trip occurs more than ‘The number of automatic restart’ at FUN_60. For example, if inverter starts
sucessfully by ‘automatic restart’ (and trip doesn’t occur any more), ‘the number of automatic restart’ doesn’t add. If it
fails (trip occurs again) 1 is added based on the previous accumulated number. That is, the number is added
continuously without the initialization.
The conditions for the initialization of ‘the number of automatic restart’.
z
The number automatic restart accumulated so far is initailized by turning the inverter power ON/OFF
z
If the number of automatic restart reaches to the set value at FUN_60, the automatic restart won’t be conducted
any more. Then push the reset key in loader forcefully for clearing trip so that the number of automatic restart will
be initialized again and be increased from the beginnning.
CAUTION
z
Particular attention should be directed to this function as the inverter clears the fault automatically
and motor suddenly restarts when trip occurs.
z
Auto restart function is disabled when the following trips occur.
①
BX (Emergency stop)
②
Low Voltage
③
Arm Short-U (V, W, DB)
④
Fuse Open
⑤
Ext Trip-B (External trip B)
⑥
InvOver Heat (inverter overheated)
⑦
MotOver Heat (Motor overheated)
⑧
Encoder Err (Encoder error)
⑨
Over Load (Overload trip)
⑩
E-Thermal (Electronic thermal protection)
⑪
FAN/MC PWR, FAN PWR (AC FAN and M/C power source fault)
z
If trip does occur in 30 sec after restart, inverter adds the number of restart by one automatically
and this cannot exceed setting value.
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