GEA Grasso, Manual

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Grasso
Refrigeration Division
GRASSO SYSTEM CONTROL
01.2003/0 638660E_chapter6.doc Kap.6 - 1
6 ALARMS
6.1 General
)
Shut down on alarms are carried out to prevent the refrigeration equipment operating outside of
design limits and do not represent a defect in the controls.
The alarm signals are divided into 2 groups:
Figure 1: : Control cabinet with LED and indicator lights
6.1.1 Alarms
)
These cause the compressor to switch off and prevent it from automatically switching back on.
Alarms are indicated by the indicator light (red) “Alarm“, LED (red)
Ì
!
and text message in the display.
6.1.2 Warnings
)
These do not cause the compressor to switch off, but can block it from being switched on.
Warnings are signalled optically by the indicator light (amber) “Warning“, LED (red)
Ì
!
and text message in the
display.
Note: Warnings are automatically reset after the cause has gone.
6.1.3 View active alarms and warnings
The ‘Status mode‘ is displayed by pressing the key several times. The most important actual values are
shown in the first three rows and in the 4
th
row the status message is shown.
By scrolling with the cursor keys and all active alarms and warnings are displayed.
Alarm
Warning
Ì
!