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4.2.5
Function of the Integrated ASPS Changeover Assembly (Option)
If a mains voltage >85 VAC is available and the PSU has reached its output voltage (30 ± 0.75 VDC), the load
is switched 2-pole (+ and -) from the battery to the PSU output.
If the PSU is off or the input or output voltage of the PSU drops below the operating limits, the load is
supplied by the battery (X2).
If a mains voltage >85 VAC is present, this is additionally indicated by an internal LED
AC ok
that lights up
green on the upper side of the PSU.
4.2.6
Connection to On-Site Power Supply
Danger of serious injury from electric shock!
•
Make sure that the power supply lines are de-energized while you are working on the system and that
accidental reconnection to the supply system is reliably prevented throughout!
The on-site power supply (separate supply lines for each power module) is connected to the terminals
N
,
L
and
PE
of the respective power module in case of standard grids.
For IT networks, the on-site power supply is connected to the terminals
L
,
L2
at
N fused
and
PE
of the
respective power module.
The on-site PE must be routed to the central equipotential bonding terminal at MP6.
If the power module is supplied with mains voltage, the LED
AC ok
(1) that is visible from top through the
recesses in the housing is lit.
