Atlas Copco GA5, User Manual

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2920 1207 05
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User manual
Loading press
bar
"7.0"
Prog Lim Canc
F1 F2 F3
Fig. 12.2. Example of a modifying screen (regulation settings)
4. Modify the value by means of the scroll keys (6-Fig. 2.1).
Figures 12.1 and 12.2 show the displays when changing the
loading pressure from 6.6 bar into 7.0 bar.
5. Press the key <<Prog>> to program the new value or the
key <<Canc>> to cancel the modification operation (the
original value will be retained).
Notes
The regulator will not accept new values beyond the
limitations. See section 18.
It is possible to check the limitations which are valid for
the parameter to be modified by selecting <<Lim>> (limits).
A typical example is shown in Fig. 12.3.
Prog limits
min
4.0
max 7.4
Rtrn
F1 F2 F3
Fig. 12.3. Example of a modifying screen (regulation settings)
12.4 Modifying protection settings
1. Call up the modify settings submenu and select the option
<<protections>>. See section 12.2. A screen as shown in
Fig. 12.4 appears.
Element outlet
Temperature
↓
Menu Slct
F1 F2 F3
Fig. 12.4. Example of a modifying screen (protection settings)
Note:
On Full-feature compressors with integrated air dryer, a second
option, i.e. dewpoint, can be selected. See section 12.4.2.
On water-cooled GA55/75 compressors, a second option, i.e.
cooling water outlet temperature, can be selected. See section
12.4.3.
12.4.1 Element outlet temperature
2. Press the key <<Slct>> (select): a screen similar to the one
shown below appears (Fig. 12.5):
Element outlet
Shd
Max 110
C 85
↓
Menu Mod
F1 F2 F3
Fig. 12.5. Example of a modifying screen (protection settings)
The example in Fig. 12.5 indicates:
- On line 1, the name of the sensor (Compressor
<<Element outlet>>)
- On line 2, the type of parameter (<<Shd>> or shut-
down), the level type (<<Max>> or maximum level)
and the actual programmed value (<<110>>)
- On line 3, the unit (<<C>>) and the actual measured
value (<<85>>)
3. To modify the shut-down level, press the key <<Mod>>
(modify) and then use the scroll keys (6-Fig. 2.1).
4. Use the key <<Prog>> to program the new value or the key
<<Canc>> to cancel the modification operation (the original
value will be retained).
Notes
The regulator will not accept new values beyond the
limitations. See section 18.
It is possible to check the limitations which are valid for
the parameter to be modified by selecting <<Lim>> (limits).
5. The arrow on the modifying screen (Fig. 12.5) indicates to
use the scroll key
↓
(6-Fig. 2.1) to show the relevant shut-
down warning (<<Shdw>>) value (e.g. <<100>> degrees
celsius); see Fig. 12.6.
Element outlet
↑
Shdw Max 100
C 85
↓
Menu Mod
F1 F2 F3
Fig. 12.6. Example of a modifying screen (protection settings)
6. To modify the shut-down warning level, press the key
<<Mod>> (modify) and then use the scroll keys (6-Fig. 2.1).
7. Use the key <<Prog>> to program the new value or the key
<<Canc>> to cancel the modification operation (the original
value will be retained).
8. The arrow
↓
on the screen (Fig. 12.6) indicates to use the
scroll key
↓
(6-Fig. 2.1) to show the programmed delay
for the shut-down; see Fig. 12.7.
Element outlet
↑
Delay at signal
sec
0
Menu Mod
F1 F2 F3
Fig. 12.7. Example of a modifying screen (protection settings)