GEA Grasso Manual page 141

Grasso
Refrigeration Division
!
LED
The cause of the alarm
still exists.
Remove cause of the alarm
Attention! It is not possible to restart the compressor as long as the cause of the alarm still exists!
Display of the cause(s) of the alarms after deleting the display on view (press the
several alarms have occurred simultaneously:
Step Procedure
Call up the 'Alarms' menu by pressing the
1
Select the 'View' menu item for the alarms by pressing the
2
occurred can be viewed here with the date and time at which they occur.
For more detailed explanations for reading the error messages, see Chapter 1.2.2.2.
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After pressing the 'ACK' key,
the alarm is acknowledged at
the PLC.
The alarm message is deleted
in the display.
The main menu appears in the
display.
Possibility 1
(red) ON
Restore operation
mode active before
alarm occured by
pressing
638660E_chapter7.doc
GRASSO SYSTEM CONTROL
Possibility 2
!
LED (red) OFF
Cause of the alarm
has already been removed.
key) or in the case that
key.
key. The errors that have
Kap.7 - 3