Fig. 9 Stepless regulation of volumetric flow (standstill)
3
Inlet valve
4
Airend
5
Oil separator tank
23
Proportional controller (electric)
27
Venting valve
46
Nozzle
52
Control valve
63
Control valve (proportional valve)
4.5 Safety devices
4.5.1 Monitoring functions with shutdown
The SIGMA CONTROL MOBIL monitors the important machine parameters. The machine is auto‐
matically shut down if an alarm occurs.
The SIGMA CONTROL MOBIL saves the alarm message.
Further information Further information on alarm messages can be found in chapter 9.2.1.
4.5.2 Further safety devices
The following safety devices are provided and may not be modified in any way.
■ Emergency stop push button:
The «Emergency stop» push button shuts down the compressor immediately. The engine
comes to a stop. The pressure system is vented.
4
Design and Function
4.5
Safety devices
No.: 9_9570 07 USE
Operator Manual Screw Compressor
M250 SIGMA CONTROL MOBIL
43