MERAWEX ZDSO400-DR2, User Manual, Page: 5 / 18

ZDSO400-DR2, ZDSO400-DR4 Document N
o
. 0546.00.95-02.2 Page:5/18
Fig. 4. View of the front and back panel of the ZDSO400-DR4 power supply unit
A digital display panel, a USB port and 4 LED indication diodes are installed in the front panel of the
power supply unit:
1. MAINS (green)
2. BATTERY (yellow)
3. CHARGING (green)
4. FAULT (yellow)
The back panel contains:
1. A PC-type socket for connecting the mains cable (
230Vac 50-60Hz).
2. Eight screw connectors for connecting four 24 V battery banks (
BAT1, BAT2, BAT3, BAT4
) and
four neighbouring connectors of a circuit equalizing voltages of battery banks M.
3. A socket for connecting the temperature sensor (
TEMP SENSOR
).
4. Two input sockets for external fault indication (
EXT. FAULT 1 and EXT. FAULT 2
),
5. Three output sockets of relay indication system (
MAINS FAULT
,
BAT FAULT and GEN FAULT
).
6. 12 sockets for connecting VAS 24V amplifiers (from
OUT1
to
OUT12
). They can also be used
for connecting the smoke and heat system devices.
7. Two double sockets for connecting the network controller and other VAS modules designed to
work with 24V power supply (
ADDITIONAL OUTPUT 24V
). They can also be used for
connecting the smoke and heat system devices.
8. Ethernet connector (option).
1.3. Basic electrical parameters
ZDSO400-DR2 ZDSO400-DR4
Nominal mains voltage 230V
+10% -15%
50-60Hz
Power factor 0.98
Efficiency (while charging the battery) 84%
Output voltage stabilisation 0.5%
Leakage current in the protective cable <1.5mA <3mA
Maximum power consumption from the mains 2.7A 5.4A
Nominal voltage of the external battery bank 24V 24V
Nominal voltage of the floating mode operation at 25
°
C 27.1V 27.1V
Nominal voltage of the bulk charging mode operation at 25
°
C
28.3V 28.3V
Temperature compensation factor of the floating mode operation
and bulk charging
- 48mV/ºC - 48mV/ºC
Maximum capacity of supplied battery banks
320Ah
*2) *4) *5)
640Ah
*2) *4) *5)
Maximum number of battery strings 2 4
Maximum charging current 16A 32A
Maximum resistance of battery circuit
*1)
50m Ω 50m Ω
Load capacity of power supply outputs provided for VAS amplifiers 6 x 30A 12 x 30A
Load capacity of power supply output provided for network 1x6A 2x6A