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PSAC04244
3
1.2. Block diagram.
Fig.1. Block diagram of the PSU.
1.3. Description of PSU components and connectors
Tab.1. Terminals and elements of LB4/24V/27V/AW- fuse strip (module).
Element no.
[Fig. 2]
Description
[1]
L1÷L4 -
LEDs (green) indicating L1=AUX1 output status
[2]
F1÷F4
fuses in AUX circuits, F1=AUX1 etc.
[3]
COM-U1-U2
AC power input
[4]
AUX1÷AUX4 –
outputs, joint terminal
COM
[5]
L
FPS
red LED indicating failure at one of the outputs (fuse activation)
[6]
FPS
output indicating failure at one of the outputs, OC type (L
– normal state, hi-Z -
failure)
[7]
Jumper for fuse selection (glass fuse or polymer fuse)
Fx Fx.x
Fx jumper on, glass fuse selected
Fx Fx.x
Fx.x jumper on, polymer fuse selected
[8]
Selection jumper for AUX output voltage (independently for each output):
U2 U1
U1 jumper on, voltage at the output AUXx= 24V AC
U2 U1
U2 jumper on, voltage at the output AUXx= 27V AC