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6.4 Power supply - mains voltage connection
When supplied from the factory, the power supply's internal cabling is already
connected.
Power supplies available
● Standard: DC 24 V / 2.5 A, power 70 W, max. battery capacity which can be
connected 17 Ah (in the FC721, no more than 7 Ah due to a lack of space)
● Option: DC 24 V / 5 A, power 150 W, max. battery capacity which can be
connected 45 Ah (only in additional empty housing)
Figure 18: Mains connection
1
EMC-critical zone (no high-voltage power
permitted)
4 Cable strain relief for mains supply line
2
Mains connection from below (not permitted when
batteries are fitted)
5 Mains connection from above (recommended)
3 Disconnect terminal blocks 6 EMC boundary
● The network cables must be inserted from above.
● The mains lead must be placed along the left side of the housing (observe
EMC zone boundary).
● Signal and control lines must only be fed into the housing on the right from
above or from the rear.
● Batteries must be installed in the correct positions.
● No cable openings should be made in the base of the housing, unless an
additional empty housing is mounted below the FC721 to accommodate the
batteries.
● The line voltage required (AC 230 V / AC 115 V) is stated on the type plate of
the FC721.
X3
X1
5
6
2
4
3
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