Compressor control modes on compressors with Elektronikon® Graphic controller
.
The following control modes can be selected:
•
Local control:
The compressor will react to commands entered by means of the buttons on the
control panel. Compressor start/stop commands via Clock function are active, if programmed.
•
Remote control:
The compressor will react to commands from external switches. Emergency stop
remains active. Compressor start/stop commands via Clock function are still possible.
Options:
• Remote starting and stopping (switch S1')
• Remote loading/unloading (Switch S4')
• Remote pressure sensing (switch S' combined with pressure switch S4')
Have the modifications checked by Atlas Copco.
Stop the compressor and switch off the voltage before connecting external equipment.
Only potential-free contacts are allowed.
•
LAN control:
The compressor is controlled via a local network. Consult Atlas Copco.
Compressor status indication on compressors equipped with an Elektronikon® controller
The Elektronikon controller is provided with an auxiliary relay (K05) for remote indication of a shutdown.
This NO contact (NO = normally open) will be closed if all conditions are normal and will open in case of
power failure or shutdown.
Maximum contact load: 10 A / 250 V AC.
Stop the compressor and switch off the voltage before connecting external equipment. Consult Atlas
Copco.
Compressor status indication on compressors equipped with an Elektronikon® Graphic
controller
The Elektronikon controller is provided with potential free auxiliary NO contacts (NO = normally open)
(K05, K07 and K08) for remote indication of:
• Automatic operation (K07)
• Warning condition (K08)
• Shut-down condition (K05)
Example: K05 is a NO (NO = normally open) contact. It will be closed if all conditions are normal and will
open in case of power failure or shutdown.
Maximum contact load: 10 A / 250 V AC.
Stop the compressor and switch off the voltage before connecting external equipment. Consult Atlas
Copco.
Instruction book
124
2920 7140 90
Summary of Contents for GA15
Page 1: ...Atlas Copco Oil injected rotary screw compressors GA 15 GA 18 GA 22 GA 26 Instruction book ...
Page 2: ......
Page 168: ......
Page 169: ......