10. Advanced functions
10.12 Auto restart try
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| Function |
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| H26 |
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| [Number of Auto | Restart |
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| - |
| 0/10 |
| 0 |
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| group 2 |
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| try] |
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| H27 |
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| [Auto Restart time] |
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| 0/60 |
| 1.0 |
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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. The 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 there is no more trip occurring 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
The following pattern is shown when the H26 – [Number of auto restart try] is set to 2.
Constant
Run
Freq
Voltage |
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| Speed Search | |
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Reset |
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Run |
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Command |
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| 30Sec | |
Number of Auto | 2 | 1 | |
restart try | |||
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Trip occurred
H27
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2 | 1 | 0 |
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