5-117
H04, H05
Auto Reset (Times and Reset interval)
H04 and H05 specify the auto-reset function that makes the inverter automatically attempt to reset the tripped state and
restart without issuing an alarm output (for any alarm) even if any protective function subject to reset is activated and the
inverter enters the forced-to-stop state (tripped state).
If the protective function is activated in excess of the times specified by H04, the inverter will issue an alarm output (for any
alarm) and not attempt to auto-reset the tripped state.
Listed below are the protective functions subject to auto-reset.
Protective function
LED monitor displays:
Protective function
LED monitor displays:
Overcurrent protection
0c1
,
0c2
or
0c3
Motor overheat
0h4
Overvoltage protection
0u1
,
0u2
or
0u3
Braking resistor overheat
dbh
Heat sink overheat
0h1
Motor overload
0l1
to
0l4
Inverter internal overheat
0h3
Inverter overload
0lu
Number of reset times (H04)
Data setting range: 0 (Disable), 1 to 10 (times)
H04 specifies the number of reset times for the inverter to automatically attempt to escape the tripped state.
If the "auto-reset" 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)
Data setting range: 0.5 to 20.0 (s)
H05 specifies the reset interval time between the time when the inverter enters the tripped state and the time when it issues
the reset command to attempt to auto-reset the state. Refer to the timing scheme diagrams below.
<Operation timing scheme>
• In the figure below, normal operation restarts in the 4th retry.
Summary of Contents for FRENIC-MEGA
Page 36: ...2 6 Unit inch mm Refer to Section 2 3 3 9...
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