User manual

2920 1207 05
13
User manual
temperature
- A shut-down (<<Shd>>) level is programmed, i.e. <<110>>
degrees celsius maximum (<<Max>>)
- The actual temperature is <<85>> degrees celsius
- The key <<Warn>> can be used to look at the warning level,
see step 7.
5. On Full-feature compressors only, the scroll keys can be
used to show the dewpoint. See Fig. 8.3.
Dewpoint ↑
C4
Warn Max 15 ↓
Menu
F1 F2 F3
Fig. 8.3. Example of a measured data display
The display indicates that:
- The reading shown is the <<dewpoint>> temperature
- A warning (<<Warn>>) level is programmed, i.e. <<15>>
degrees celsius maximum (<<Max>>)
- The actual temperature is << 4>> degrees celsius
Note: on GA5 up to GA45, only the status of the dewpoint
(normal or not normal) is shown unless the dewpoint display
mode in the <<Configuration>> submenu, see section 14,
is set to value.
6. The vertical arrow at the right-hand side indicates that the
display can be scrolled downwards to show other measured
data, e.g. the motor overload condition; see Fig. 8.4.
Overload motor ↑
Normal
Shd PeSt NC
Menu
F1 F2 F3
Fig. 8.4. Example of a measured data display
The display indicates that:
- The contacts of the motor overload relay are normally closed
(<<NC>>)
- The condition of the relay is <<Normal>> (i.e. contacts
closed)
- Opening of the contacts of the relay will shut down
(<<Shd>>) the compressor
- PeSt (permissive start function): the compressor will not
start in case of a motor overload
7. After pressing the key <<Warn>> on the screen shown in
Fig. 8.2, a screen similar as in Fig. 8.5 is shown:
Element outlet
C85
Shdw Max 100
Rtrn
F1 F2 F3
Fig. 8.5. Example of a measured data display
The display indicates that a shut-down warning (<<Shdw>>)
level is programmed, i.e. 100 degrees celsius maximum
(<<Max.>>). Press the key <<Rtrn>> to return to the screen of
Fig. 8.2.
9 HOURS SUBMENU: Calling up
running hours, loading hours,
regulator hours and motor starts
9.1 Function
To call up the running hours and loading hours of the compressor,
the hours the regulator has been in operation as well as the
number of motor starts.
9.2 Procedure
1. Activate the main menu by pressing the key <<Menu>> (5-
Fig. 2.1).
2. Scroll through the available options by using the scroll keys
(6-Fig. 2.1) until the option <<Hours>> is shown on the
second line of the display.
3. Press the key <<Slct>> (select) (5-Fig. 2.1).
The display will show the running hours. By using the scroll
keys (6-Fig. 2.1), other options can be selected to call up the
data of the other timers, i.e. loading hours, motor starts and
regulator hours.
Typical example (Fig. 9.1)
In this example the option <<Loading hours>> is selected:
Loading hours ↑
Hrs 1000
↓
Menu Mod
F1 F2 F3
Fig. 9.1. Example of loading hours display
The display indicates that the compressor has run loaded for
1000 hours.
The bottom line of the screen shows the available function keys,
i.e. <<Menu>> to return to submenu and <<Mod>> to modify
the value of the indicated timer; if this should be required, consult
Atlas Copco.