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EN54-2A17LCD
RED POWER
8
4.3. Description of components and power supply terminals.
Table 1. Components of the Power supply PCB (Fig. 2).
Component
No.
Description
PANEL
– optical indication connector
BUZZER
– acoustic
indication (section 7.2.2)
V
EXT
jumper
– polarization of the EXTi circuit
(section 6.6)
F
BAT
– fuse in the battery circuit,
F5A / 250V
F
AUX1
– fuse in the AUX1 output circuit,
F3,15A / 250V
F
AUX2
– fuse in the AUX2 output circuit,
F3,15A / 250V
SERIAL
– communication port
Z2 jumper
– temporary lock of the battery test
(section 8.5)
– The EXTo relay switch lock from
the PowerSecurity application-level (section 7.2.3)
OVP
– overvoltage protection optical indication
(section 6.9)
LEDs
– optical indication:
AC
– AC
power
AUX1
– AUX1 output voltage
AUX2
– AUX2 output voltage
OVL
– PSU overload
APS
–
battery failure
PSU
– PSU failure
ALARM
– collective failure
EXTi
– EXTi input status
EXTo
– EXTo relay output status
LB
– battery charging
Terminals:
~AC~
– AC power input
EPS FLT
– technical output of AC power failure indication
open
= AC power failure
close
= AC power - O.K.
PSU FLT
– technical output of PSU failure indication
open
= failure
close
= PSU operation - O.K.
APS FLT
– technical output of battery failure
open
= battery failure
close
= battery status - O.K.
ALARM
– technical output of collective failure of the PSU -
relay type.
CAUTION!
In Fig.2 the set of contacts shows a
potential-free status of the relay, which corresponds to
power supply failure.
EXTo
– controlled relay output
EXTi
– input of collective failure
+BAT-
–
terminals for connecting the battery
+AUX1-
– AUX1 power output
(+AUX1= +U, -AUX=GND)
+AUX2-
– AUX2 power output
(+AUX2= +U, -AUX=GND)
TAMPER
– antisabotage protection microswitch connector (section 6.7)
Connector
– for connecting the EMC filter
Fig. 2.
The view of the PSU’s PCB.
