Modifying Protection Settings; Element Outlet Temperature; Example Of A Modifying Screen (Protection Settings) - Atlas Copco GA55 User Manual

Loading press
bar
Prog Lim
F1 F2
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
Fig. 12.3. Example of a modifying screen (regulation 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
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.
2. Press the key <<Slct>> (select): a screen similar to the one
shown below appears (Fig. 12.5):
16
Element outlet
"7.0" Shd
C
Canc Menu
F3 F1
Fig. 12.5. Example of a modifying screen (protection settings)
The example in Fig. 12.5 indicates:
3. To modify the shut-down level, press the key <<Mod>>
4. Use the key <<Prog>> to program the new value or the key
5. The arrow on the modifying screen (Fig. 12.5) indicates to
F3
Element outlet
Shdw
C
Menu
F1
Fig. 12.6. Example of a modifying screen (protection settings)
↓
6. To modify the shut-down warning level, press the key
F3
7. Use the key <<Prog>> to program the new value or the key
8. The arrow ↓ on the screen (Fig. 12.6) indicates to use the
Element outlet
Delay at signal
sec
Menu
F1
Fig. 12.7. Example of a modifying screen (protection settings)
Max
Mod
F2
- 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>>)
(modify) and then use the scroll keys (6-Fig. 2.1).
<<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).
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.
Max
Mod
F2
<<Mod>> (modify) and then use the scroll keys (6-Fig. 2.1).
<<Canc>> to cancel the modification operation (the original
value will be retained).
scroll key ↓ (6-Fig. 2.1) to show the programmed delay
for the shut-down; see Fig. 12.7.
Mod
F2
User manual
110
↓
85
F3
↑
100
↓
85
F3
↑
0
F3
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