Atlas Copco GA5, User Manual

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User manual
7.2.1 No shut-down warning message or shut-down
message exists
In this case, LED (3-Fig. 2.1) is out and the message on the
display indicates that all conditions are normal (Fig. 7.1):
All conditions
are OK
Menu
F1 F2 F3
Fig. 7.1. Example of a status data screen
7.2.2 A shut-down message exists
LED (3-Fig. 2.1) blinks and the shut-down screen (Fig. 7.2)
automatically appears on the display if the compressor is shut
down.
In case of a shut-down due to too high an element outlet
temperature, a screen similar to that in Fig. 7.2 will appear:
Element outlet
Shd
Max 110
C 112
Menu ** ** Rset
F1 F2 F3
Fig. 7.2. Example of a status data screen
The top line of the display, the actual temperature (112 degrees
celsius) and the indicators (**) are blinking.
It remains possible to scroll through other menus and then return
to the status data menu. In this case, the first option of a submenu
will be shown, i.e. <<shut-downs>>. This option can be selected
by pressing the key <<Slct>> (select) to return to the shut-down
screen (Fig. 7.2). The other options (i.e. <<protections>> and
<<start failures>>) can be selected by scrolling until the desired
option appears and then pressing the key <<Slct>> (select) to
collect other information. If the message <<All conditions are
OK>> appears when selecting <<protections>> and <<start
failures>>, this means that:
-
Besides the existing shut-down condition there are no other
alarms
- There are no start failures
See section 7.3 to reset the shut-down message.
7.2.3 A shut-down warning message exists
1. LED (3-Fig. 2.1) is alight and the main display screen will
change into a screen similar to the one in Fig. 7.3 if a shut-
down warning exists.
Delivery air
bar
7.0
*Shutd Warn*
Menu ** More ** Unld
F1 F2 F3
Fig. 7.3. Example of a shut-down warning screen
Element outlet
Shdw
Max 100
C 106
Menu ** **
F1 F2 F3
Fig. 7.4. Example of a shut-down warning screen
2. The indicators (**) are blinking and the warning message
appears alternately with the messages indicating whether
the compressor runs unloaded or loaded.
3. Press the key <<Menu>>: the main menu appears (Fig. 6.1)
with blinking indicators (**).
4. Press the key <<Slct>> (select), use the scroll key until the
option <<protections>> is shown and select this option. A
screen similar to the one in Fig. 7.4 appears, indicating that
the temperature at the outlet of the compressor element (106
degrees celsius) is too high. Consult the Instruction book
to remedy the trouble.
5. If necessary, stop the compressor by means of button O (9-
Fig. 2.1) and wait until the compressor has stopped.
6. Switch off the voltage and inspect the compressor.
7. The warning message will disappear automatically as soon
as the warning condition disappears.
7.2.4 A warning message exists
1. LED (3-Fig. 2.1) is alight and the main display screen will
change into a screen similar to that shown in Fig. 7.5.
Delivery air
bar
7.0
*Warning *
Menu ** More ** Unld
F1 F2 F3
Fig. 7.5. Example of a warning screen
2. The indicators (**) are blinking and the warning message
appears alternately with the messages indicating whether
the compressor runs unloaded or loaded. This warning
indicates that:
-
On water-cooled GA55/75 compressors, the cooling
water outlet temperature exceeds the programmed
warning level.
- On Full-feature compressors (compressors with
integrated air dryer), the dewpoint temperature exceeds
the warning level.