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10. Advanced functions
10.12 Auto restart try
Group LED Display Parameter Name
Set
value
Min/Max
Range
Factory
Defaults
Unit
H26
[Number of Auto Restart
try]
-
0/10 0
Function
group 2
H27
[Auto Restart time]
- 0/60 1.0 Sec
This parameter sets the number of times auto restart is activated in H26.
It is used to prevent the system down caused by internal protection function activated by the
causes such as noise.
H26: Auto restart will become active after the H27. H26 – [Number of Auto restart try] is
reduced by 1 when it is active. If the trip outnumbers the preset restart try, auto restart
function is deactivated. If the setting is reset via the control terminal or the STOP/RST
key on the keypad, the number of auto restart try set by user is automatically entered.
If the trip does not occur for 30 sec after Auto restart operation, the H26 is restored to
the preset value.
When operation is stopped due to Low voltage {Lvt} or Emergency stop {EST}, Auto
restart will be deactivated.
After the H27- [Auto Restart time], the motor starts acceleration automatically via speed
search (H22-25).
The following pattern is shown when the H26 – [Number of auto restart try] is set to 2.
Run
Com mand
C onstant
Run
Num ber of Auto
re s ta rt try
2 1 2 1 0 2
Freq
Volta g e
Reset
30Sec
Speed Search
operation
Trip occurred
H27
94