Atlas Copco Stationary Air Compressors User Manual

Instruction book 

2920 1521 00 

13 

 

 

Compressor Outlet 

 

7.0 bar 

 

 

 

Compressor Running 

 

↓ 

Menu 

 

- - - - 

F1 F2 F3 

 
Fig. 1.12 Typical example of a display 
 
Operating condition of a compressor module 
The symbols shown above key F3 indicate the operating condition of each control module, see also section 
8.1.2: 
 

Symbol Indicates 

- 

that the compressor module is available (ready to run), each 
symbol stands for a compressor module (the left symbol stands for 
the lowest mounted module, the right symbol stands for the 
highest module) 

▄ 

that the compressor module is running 

- (blinking) 

that the compressor module is not available (due to minimum stop 
time or too many starts) 

* (blinking) 

that the compressor module is shut-down 

 
 
Scroll keys (3-Fig. 1.11) 
These keys, labelled with vertical arrows, allow to scroll through the display. 
 
As long as a downwards pointing arrow is shown at the utmost right position of the display, the key (3) with 
the same symbol can be used to see the next item. 
 
As long as an upwards pointing arrow is shown at the utmost right position of the display, the key (3) with the 
same symbol can be used to see the previous item. 
 
Tabulator key (4-Fig. 1.11) 
This key, labelled with two horizontal arrows, allows the operator to go to the next field of the display, e.g. 
during modifying of programmable parameters. 
 

The keys are used: 
- 

To call up or program settings 

- 

To reset an active shut-down or service message, or an emergency stop 

- 

To have access to all data collected by the regulator 

 
The function keys allow to make the required selection from a menu of possibilities.  The functions of the keys 
vary depending on the displayed menu.  The actual function is abbreviated and indicated on the bottom line of 
the display just above the relevant key.  Only the active and relevant functions at a moment are shown: 
 
Designation Function 
Back 

To return to a previously shown option or menu 

Cancel 

To cancel a programmed setting when programming parameters 

Delete 

To delete compressor start/stop commands 

Extra 

To find the module configuration of the regulator 

Help 

To find the Atlas Copco internet address 

Limits 

To show limits for a programmable setting 

Mainscreen 

To return from a menu to the main screen