H04
Auto-reset (Times) H81 Auto Reset (Mode selection 1)
H82 Auto Reset (Mode selection 2)
H05
Auto-reset (Reset interval)
H04 and H05 specify the allowed times and reset interval of Auto-reset function. Trip will be
auto-reset when Run command is set to OFF if certain conditions are fulfilled.
On below table, alarms that can be auto-reset are listed. Auto-reset function is enabled/disabled by
function codes H81 and H82.
Alarm status
Alarm code
Alarm status
Alarm code
Instantaneous
overcurrent
OC1
,
OC2
,
OC3
Motor protection
OH4
Overvoltage
OV1
,
OV2
,
OV3
Overload of motor 1
OL1
Heat sink overheat
OH1
Inverter overload
OLU
Inverter overheat
OH3
Undervoltage
LV
Speed missmatching
ErE
Operation protection
Er6
Charging resistor
overheat
OH6
EN1, EN2
terminals
chattering
Eo
Number of auto-reset times
(H04)
H04 specifies the number of auto-reset times for automatically releasing the tripped state. If the
protective function is activated more than the specified auto-reset times, the inverter issues an alarm
(for any faults) and does not attempt to release the tripped state.
- Data setting range: 0 (disable)
1 to 10 (times)
Reset interval (H05)
H05 specifies the interval time to attempt performing auto-reset the tripped state. Refer to the timing
scheme diagram below.
- Data setting range: 0.5 to 20.0 (s)
Operation timing scheme
The auto-reset operates by satisfying all of the following conditions.
- The time of reset interval (H05) passed after the alarm is generated.
- The run command is OFF.
- The auto-reset times are the set value in Number of auto-reset times (H04) or less.
- The specific bit on H81 or H82 is set to 1.
The auto-reset times is reset by satisfying either of the following conditions.
- The alarm was reset by manual operation.
- The alarm was not generated within 24 hours.
Run command
ALM
TRY
Auto-reset Times
ON
ON
ON
ON
ON
ON
H04
Reference
Speed
ON
ON
H04
≤
reset times
Auto-resetting
operation is not done.
RST
ON
ON
H05
H05
2-90
Содержание Frenic lift
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