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3. Press «Enter» .
The setting is saved.
4. Press «esc» .
The display changes to show the operating mode.
This setting is only temporary and is lost when the controller is switched off.
Setting the engine IDLE speed.
1. Use the «UP» and/or «DOWN» keys to select IDLE speed setting
U4
.
2. Press «RIGHT» and/or «LEFT» keys to select the required speed.
3. Press «Enter» .
The setting is saved.
4. Press «esc» .
The display changes to show the operating mode.
This setting is only temporary and is lost when the controller is switched off.
7.7 Option ob
Changing the parameters of the start/stop/automatic option
The following parameters can be changed:
■ Run-on period under LOAD.
■ Run-on period in IDLE.
■ Manual or automatic operation (Service password level 3).
The length of the warm-up period, between starting and switching to LOAD, cannot be changed.
The controller switches the machine to LOAD as soon as the airend discharge temperature
reaches 40 °C.
Precondition Controller switched on
<Main menu => settings => options => start-stop-automatic > selected.
7
Initial Start-up
7.7
Changing the parameters of the start/stop/automatic option
70
Service Manual Screw Compressor
M170 SIGMA CONTROL MOBIL
No.: 9_9425 01 E