Safety
The operator must apply all relevant safety precautions, including those mentioned in this book.
Moving/lifting
The compressor can be moved by a lift truck. Take care not to damage any installed connections under the
frame while moving the truck or compressor. For lifting make sure that the forks are long enough to give a
stable support for the compressor.
4.3 Electrical connections
Instructions
Also see section Electrical diagram.
1. Install an isolating switch near the compressor.
2. Check that the motor cables and wires inside the electric cabinet are clamped tight to their terminals.
3. Check the fuses and the setting of the overload relay. See section Cable size and fuses.
4. Connect the power supply cables to their terminals L1, L2, L3.
5. Connect earth conductor bolt (PE).
6. Consult the Airplant/dryer instruction book section on CAN cables. Connect the external CAN cable(s)
to the connector(s) on the side of the cubicle. When the compressor is last in line, the upper CAN connector
must be chosen and the dip switch on the CAN connector inside the cubicle must be switched to ON. In
other cases, the dip switch should be set to OFF.
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.
• LAN control: The compressor is controlled via a local network. 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:
• Manual load/unload or automatic operation (K07)
• Warning condition (K08)
• Shut-down condition (K05)
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
64 2920 7104 10
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