Alarms; View Active Alarms And Warnings; No Alarm Signal And The Compressor Will Not Start - GEA Grasso System Control Operating Instructions Manual

Display Meaning
Alarm active
(red)
Help (green) Help text available
Shift (green) Switch over function active
1.4

Alarms

[Chapter 6. in user manual]

1.4.1 View active alarms and warnings

[Chapter 6.1.3. in user manual]
The ´Status mode´ is displayed by pressing the
shown in the first three rows and in the 4th row the status message is shown.
By scrolling with the cursor keys

1.4.2 No alarm signal and the compressor will not start

[Chapter 6.5. in user manual]
Compressor will not start, although there is no active alarm.
"ON" has been pressed and the LED K1 "ON" is flashing.
Key
Cause
No 'start release' signal
'Auto Start dly' active
'Start to start' delay active
actual value < (set point + ½ NZ)
NZ = neutral zone
FOR TWO STAGE CHILLER/ PACKAGES WITH SCREW
Explanation
lights up, if a malfunction has been confirmed, but is still active.
flashes, if a further malfunction has been activated.
lights up, if a help text is available.
lights up, if the SWITCHOVER function is active.
key several times. The most important actual values are
and all active alarms and warnings are displayed.
The input ´start release´ is not
closed.
The time setting 'Auto start dly' in
'control settings menu' has not yet
expired.
The time setting 'Start to start' in
'Timer settings' menu has not yet
expired.
_805011_om_gsc_sp2_gbr_1_.doc
OPERATING INSTRUCTIONS
GRASSO SYSTEM CONTROL
COMPRESSORS
Remedy
Close input or install a link.
Wait until the delay time has
expired.
Wait until the delay time has
expired.
Check set point and neutral zone
settings in ´Control settings´menu.
In case of suction pressure control
the set point value is entered in
degrees Celsius.
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