1. Use the «UP» and/or «DOWN» keys to navigate to the menu option containing the param‐
eter to be set.
2. Use the «RIGHT» and/or «LEFT» key to set the required parameter value.
3. Confirm and save the setting with «Enter» .
Every action can be cancelled with the «escape» key.
8.4 Acknowledging alarm, warning and maintenance messages
Information from the controller is interpreted as displayed messages.
The message is stored in the event memory at the same time.
See chapter 4.8.3 for further information on the event memory.
8.4.1 Acknowledge alarm message.
An alarm message is displayed and:
■ the machine is shut down and cannot be restarted.
■ The «Information key » and the «Stop key» are illuminated.
■ The «Acknowledge» key flashes.
Precondition Alarm rectified
➤ Confirm the message with the «Acknowledge key» .
The «Information» , «Stop» , and «Acknowledge» keys extinguish.
8.4.2 Acknowledging warning and maintenance messages
A fault warning message or notification of maintenance due is displayed, and:
■ The «Information key » lights up,
■ The «Acknowledge» key flashes.
Precondition The cause of the warning is rectified
Maintenance is carried out
➤ Confirm the message with the «Acknowledge key» .
The «Acknowledge key » is extinguished but the «Information key» is still illuminated.
The «Information key» continues to be illuminated when the machine is restarted until the
fault is rectified or maintenance has been carried out.
Upon maintenance, the maintenance interval counter must be reset.
8.5 Resetting maintenance interval counters
Each maintenance interval counter must be separately reset. Only the counter currently displayed
can be reset.
8
Operation
8.4
Acknowledging alarm, warning and maintenance messages
No.: 9_9425 01 E
Service Manual Screw Compressor
M170 SIGMA CONTROL MOBIL
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