Santerno Sinus M, User Manual

Page: 130 / 219

10-30
10.12 Auto restart try
Group Display Parameter Name Setting Range Default Unit
Function
group 2
H26 [Number of Auto Restart try] -
0 ~ 10 0
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 restart automatically after an alarm.

H26: Auto restart will become active after the H27. H26 – [Number of Auto restart try] is reduced to 1
when a trip occurs. If the trip outnumbers exceeds 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 restored.

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}, Inverter Overheat {Oht}, and Hardware Trip {HWt},
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 H26 – [Number of auto restart try] is set to 2.
Run
Command
Constant
Run
Number of Auto
restart try
2 1 2 1 0 2
Freq
Voltage
Reset
30Sec
Speed Search
operation
Trip occurred
H27