■ The controller display shows
back pressure
if the pressure in the oil separator tank is still
> 1 psig
■ When the machine is fully vented, the display changes to
ready to start
.
■ When the OST is fully vented after shut down, the re-start inhibitor is activated and is in‐
dicated by the timer counting down from 20 seconds.
Shutting down the controller:
1.
Memory fault!
Damage to the machine electronics and/or controller is possible.
➤ Shut down the controller only after the engine control unit has saved.
2. Shutting down the controller:
■
0.5 - 3 minutes
■ Switch off the «Controller ON/OFF» key.
Shutting down the machine:
If the machine is not to be used again, the «Battery isolating switch» should be switched off.
1.
Danger of short circuit!
Damage to the machine electrics is possible.
➤ Use the «battery isolating switch» only when the machine is switched off.
➤ Do not use the «battery isolating switch» as a main or emergency switch.
2. Open the left-rear door.
3. Disconnect the machine's voltage supply:
■
20 seconds.
■ Turn off the «battery isolating switch».
Result The battery is disconnected from the machine's electrical system.
➤ Close all «compressed air outlet valves» on the air distributor.
Make sure equipment is protected from venting
Compressed air lines to consumers should not vent when the compressor shuts down.
A typical example would be a user's auxiliary air receiver.
The shut-off valve must remain open for any other applications!
1. Open the right-rear door.
2. Close the shut-off valve.
Further information Close the shut-off valve in the control line, see Fig. 37
➤ Close the operating panel cover and all doors. Lock if necessary.
8.2.7 Shutting down in an emergency
Stop the machine in case of danger by pressing the «Emergency stop» push button.
8
Operation
8.2
Starting and stopping
88
Operator Manual Screw Compressor
M250 SIGMA CONTROL MOBIL
No.: 9_9570 07 USE