Fig. 9 Engine preheating
Display of messages before the machine is ready to start
If there are messages in the event memory from the last machine operation, these will be displayed.
Message type
Function
Alarm
➤ Displayed alarm rectified
➤ Press the «Acknowledge» key.
The message is deleted and the engine can be started.
Warning
➤ Press the «Acknowledge» key.
The message is deleted and the engine can be started.
Maintenance
➤ Press the «Acknowledge» key.
The message is deleted and the engine can be started.
Tab. 44 Display of messages prior to starting
See chapter 4.8.3 for explanation of messages.
Operating mode display
As soon as the machine is started, the display changes to show the operating mode.
The display changes automatically with each change in the machine's operating mode.
The display can be composed of symbols and alpha-numeric characters that together give a clear
and logical meaning.
The display of operating mode is in two parts. The common display in the upper screen always shows
the current airend discharge temperature. The lower half shows the machine's operating mode.
Fig. 10 Display of operating mode (example)
A
Airend discharge temperature (ADT)
B
Operational state
Meaning of the display
Explanation
Airend discharge temperature The airend discharge temperature can be displayed in °C, °F or K as
selected by the user.
4
Design and Function
4.7
SIGMA CONTROL MOBIL function
No.: 9_6975 00 E
Service Manual Screw Compressor
M135 SIGMA CONTROL MOBIL
35
