5-64
H04
H05
Auto-resetting (Times)
Auto-resetting (Reset interval)
While the auto-resetting feature is specified, even if the protective function subject to retry is
activated and the inverter enters the forced-to-stop state (tripped state), the inverter will
automatically attempt to reset the tripped state and restart without issuing an alarm (for any
faults). If the protection function works in excess of the times specified by H04, the inverter will
issue an alarm (for any faults) and not attempt to auto-reset the tripped state.
Listed below are the recoverable alarm statuses to be retried.
Alarm status
LED monitor
displays:
Alarm status
LED monitor
displays:
Instantaneous overcurrent
protection
0c1
,
0c2
or
0c3
Motor overheated
0h4
Overvoltage protection
0u1
,
0u2
or
0u3
Motor overloaded
0l1
,
Heat sink overheated
0h1
,
Inverter overloaded
0lu
Inverter overheated
0h3
Number of resetting times (H04)
H04 specifies the number of auto-resetting "retry" times for automatically escaping the tripped
state. If the protective function is activated more than the specified resetting (retry) times, the
inverter issues an alarm (for any faults) and does not attempt to escape the tripped state.
If the "retry" function has been specified, the inverter may automatically restart and run the motor
stopped due to a trip fault, depending on the cause of the tripping.
Design the machinery so that human body and peripheral equipment safety is ensured even when
the auto-resetting succeeds.
Otherwise an accident could occur.
Reset interval (H05)
H05 specifies the interval time to attempt performing auto-resetting the tripped state. Refer to the
timing scheme diagram below.
<Operation timing scheme>
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