Fig. 20 Acknowledging messages
10 LED
Warning
(yellow)
11 LED
Alarm
(red)
12 Key«Acknowledge»
Alarm message
An alarm shuts the machine down automatically. The red
alarm
LED flashes.
The system displays the appropriate message.
Precondition The fault has been rectified
➤ Acknowledge the message with the «acknowledge» key.
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 alarm message.
Further information A list of possible alarm messages occurring during operation can be found in the service manual
SIGMA CONTROL 2 .
Warning message
If maintenance work is to be carried out or if the warning is displayed before an alarm, the yel‐
low
warning
LED flashes.
The system displays the appropriate message.
Precondition The danger of an alarm is passed,
maintenance has been carried out.
➤ Acknowledge the message with the «Acknowledge» key.
The
warning
LED extinguishes.
Further information A list of possible alarm messages occurring during operation can be found in the service manual
SIGMA CONTROL 2 .
8 Operation
8.6 Acknowledging alarm and warning messages
52
Service Manual Screw Compressor
ESD 442/14 bar (abs) SFC SIGMA CONTROL 2 ESD_2C_10357405_10–LIN_00 E