4-122
07- Start/Stop Function group
07- 00
Momentary stop and restart selection
Range
【0】:
Restart selection of momentary stop is invalid
【1】:
Restart selection of momentary stop is valid
07- 01
Restart time of automatic reset
Range
【
0~7200】 Sec
07- 02
Restart times of automatic reset
Range
【
0~10】
Setting 07-00 to 1, enven though the power is momentarily cut off, the inverter can
automatically resume the operation of the motor after the power is re-supplied.
07-00 = 0: When momentary power loss is more than 8 ms, "UV" failure (main
circuit undervoltage) will be detected.
07-00 = 1: within the power restored time, the inverter will restart.
Automatic restart function will restart the inverter when the failure occurs in operation.
This function should only be used in the applications without harm in safety or
without damage on device. It will be closed by setting 07-00 (Momentary stop and
restart selection) set to 0. The automatic restart function can be used in the
following failure occurrences. If the failure is not listed in the following table, the
protection function will be enabled while the automatic restart function is not
available.
OC (over current) OL1 (motor overload)
GF (ground failure) OL2 (Inverter overload)
FU (DC fuse is opened) OT (Over-torque detection)
OV (overvoltage) UT (Under torque detection)
UV (under voltage) OPL (Output phase loss)
IPL (input phase loss)
OH (overheat warning)
(1) Auto-restart operation
When enabling or clearing the automatic restart function based on the following
situations, the auto-restart times will automatically increase:
a. No error occurs in 10 minutes or longer after the automatic restart.
b. When receiving the input of failure clearance, the protection function will be
enabled and failure will be confirmed. (e.g: by pressing reset/left key or
enabling failure clearance terminal).
c. Switching power is being turned on or off.
. To output an automatic reset signal to one of multi-function digital output R1A-R1C,
R2A-R2C, please set parameter 03-11 to 03-12.
. Automatic restart operation:
a. When a failure is detected, the inverter will stop output by setting the
minimum base block through (07-18), and will display on the digital operator
b. After the minimum base block time (07-18), the failure is cleared
automatically and the speed search operation will be performed when the
automatic restart function is enabled.
c. When the total number of failures exceeds the number of automatic restart,
by (07-02) setting, the automatic restart function can not be execute and the
inverter will stop output. At this moment, the failure contact will act.
. Please refer to Figure 4.3.55 for the auto-restart operation.
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