■ Message going: LED flashes
■ Message acknowledged: LED off
Fig. 38 Acknowledging messages
10
Warning
LED (yellow)
11
Alarm
LED (red)
12 «Acknowledge» key
Alarm message
An alarm shuts the machine down automatically. The
Alarm
LED flashes red.
The system displays the appropriate message.
Precondition The fault has been rectified
➤ Acknowledge the message with the «Acknowledge» key.
The
Alarm
LED extinguishes.
The machine is again ready for operation.
If the machine was switched off with the EMERGENCY STOP button:
➤ Unlatch the EMERGENCY STOP button (turn in direction of the arrow) before acknowl‐
edging the fault message.
Further information Please refer to the 9.2 operating manual for a list of possible fault messages during operation.
Warning message
If maintenance work is to be carried out or if the warning is displayed before an alarm, the
Warning
LED flashes yellow.
The system displays the appropriate message.
Precondition The danger of a fault has been eliminated,
maintenance has been carried out.
➤ Acknowledge the message with the «Acknowledge» key.
The
Warning
LED extinguishes.
Further information Please refer to the 9.5 operating manual for a list of possible warning messages during operation.
8 Operation
8.3 Acknowledging alarm and warning messages
142
Service manual Controller
SIGMA CONTROL 2 SCREW FLUID 1.1.3 9_9450 03USE
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