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Instruction book
3 Operating instructions
3.1 Before initial start-up
3.1.1 Safety
The operator must apply all relevant safety precautions,
including those mentioned in this book.
3.1.2 User manual
Read the related "User manual for Elektronikon I and II
regulators" as mentioned on the first page of this book to
familiarize yourself with all regulator functions.
3.1.3 Outdoor/altitude operation
If the compressor is installed outdoors or if the air inlet
temperature can be below 0 degrees Celsius, precautions must
be taken. In this case, and also if operating at high altitude,
consult Atlas Copco.
3.2 External compressor status indication/
remote control (Elektronikon II)
GA Workplace and Workplace FF are provided with the
Elektronikon II regulator (Fig. 1.9). These regulators allow:
- external indication of the compressor status
- remote control of the compressor
Attention
Have the modifications checked by Atlas Copco. Stop the
compressor and switch off the voltage before connecting
external equipment. Only voltage-free contacts are allowed.
3.2.1 External compressor status indication
Auxiliary contacts (K07, K08 and K09) are provided at the
back of the electronic module (Fig. 1.9) for external indication
of:
- manual load/unload or automatic operation (K07)
- warning condition (K08)
- shut-down condition (K09)
Maximum load for these contacts: 1 A / 250 V AC.
3.2.2 Remote control
Consult the User manual for Elektronikon I and II regulators
(Part 2, section 14.1) if it is desired to switch to another control
mode.
Following control modes can be selected:
3.2.2.1 Local control
The compressor will react to commands entered by the buttons
on the control panel. Compressor start/stop commands via
function Clock function are active, if programmed.
3.2.2.2 Remote control
The compressor will react to commands from external switches.
Emergency stop button (S3-Fig. 1.9) remains active.
Compressor start/stop commands via function Clock function
are still possible.
For remote starting and stopping: Connect a start/
programmed stop button between terminals 30 and 33 of
terminal strip (1X6-Fig. 1.10).
Bridge terminals 30 and 34: In this mode, the outlet pressure is
still sensed by pressure transducer (PT20), resulting in loading
and unloading of the compressor at the pressures programmed
in the electronic regulator. If terminals 30 and 34 are not
bridged, the compressor is switched out of automatic load/
unload operation and remains running unloaded.
For remote loading/unloading (via external pressure switch):
Bridge terminals 30 and 35 and connect a load/unload switch
between terminals 30 and 34. This results in loading and
unloading of the compressor at the closing and opening
pressures of the external pressure switch respectively.
3.2.2.3 LAN control
The compressor can be controlled via a LAN (local area
network). Consult Atlas Copco.
3.3 Remote starting/stopping
(Elektronikon I)
GA Pack and Pack FF are provided with the Elektronikon I
regulator (Fig. 1.13). These regulators allow remote starting
and stopping.
Attention
Have the modifications checked by Atlas Copco. Stop the
compressor and switch off the voltage before connecting
external equipment. Only voltage-free contacts are allowed.
Remote starting and stopping: connect a start/
programmed stop button between terminals 30 and 33
of terminal strip (1X6-Fig. 1.15).
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