Note: The 48V PSU can be changed without the need to switch off the controller, assuming
redundant configuration. The redundancy unit will manage the load sharing accordingly.
The 48V PSU should be disconnected at the mains voltage side using the 2-part in-line mains
connector below the PSU. Thereafter the 48V cables can be unscrewed and removed from the PSU
terminals.
The DIN rail latch can be released, by using a flat screwdriver to lever up the small protrusion at
the top of the PSU, and then lifting the PSU upwards.
Figure 63 : 48V PSU DIN Rail Latch Release
The replacement PSU can then be clipped in place and the fitment of cables will be the reverse of
the operation described above.
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