Fig. 18 Using the timer for switching on and off
1 «Timer» key
2
Timer
LED
1. Attach an easily seen notice warning of time-controlled operation:
Time control: Risk of injury caused by unexpected starting!
➤ Make sure that the power supply disconnecting device is switched off before commencing any
work on the machine.
Tab. 54 Machine identification
2. Press «Timer».
The
time control
LED lights. The timer switches the machine on and off.
8.5 Interpreting operation messages
The controller will automatically display operation messages informing you about the current opera‐
tional state of the machine.
Operating messages are identified with the letter O.
Further information Detailed information can be found in the SIGMA CONTROL 2 operating manual.
8.6 Acknowledging alarm and warning messages
Messages are displayed on the "new value" principle:
■ Message coming: LED flashes
■ Message acknowledged: LED illuminates
■ Message going: LED off
or
■ Message coming: LED flashes
■ Message going: LED flashes
■ Message acknowledged: LED off
8 Operation
8.5 Interpreting operation messages
901824 12 E
Operating Manual Screw Compressor
ASK
55
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