￭
Control relay [K4]
Select a relay that has a maximum coil current of less than 200 mA.
￭
Contactor [K7]
Select an applicable type of contactor that agrees with the network voltage and frequency.
For a supply voltage of 250 … 500 V AC and a frequency of 50 or 60 Hz, you can use, for
example, ABB AF09-30-10-14.
￭
Other components
For more information about component selection, contact ABB.
Wiring requirements
• Obey the wiring instructions in the drive hardware manual.
• Keep a minimum of 0.5 m (20 in) space between the unit, the power cables, and the
drive module. If you cannot keep this much distance between them, keep as much
distance as possible.
• Use shielded twisted-pair cables between the transformers and the synchronizing unit.
Ground the shields at the cable clamps, with as short pigtails as possible. Cut and insulate
all unused conductors at both ends of the cables.
• Use shielded twisted-pair cables between the synchronizing unit and the drive. Ground
the shields at the drive module end according to the instructions given in the drive
hardware manual.
• Use shielded twisted-pair cables between the synchronizing unit and the contactor control
circuitry. Ground the shields at the cable clamps, with as short pigtails as possible.
• Dimension the cable in between the main circuit and the synchronizing transformers
according to the main circuit voltage. If necessary, protect the cable with fuses.
18 Electrical installation
