www.pulsar.pl MSRK1024
4
Fig.2. View of the PSU module
1.4 Specifications:
- electrical parameters (tab.3)
- mechanical parameters (tab.4)
- operating parameters (tab.5)
Electrical parameters (tab. 3).
Mains supply
30V
÷32V AC
50VA min. (
e.g.
AWT5172430, AWT049
)
Current up to
2 A max.
Power frequency
50Hz
Power
28 W
Efficiency
89%
Output voltage
22V÷ 27,6V DC – buffer operation
20V÷ 27,6V DC – battery-assisted operation
Output current
1A (without battery)
0,8A + 0,2A battery charge
0,5A + 0,5A battery charge
Voltage adjustment range
24V÷ 29V DC
Ripple
30 mV p-p max.
Current consumption by PSU module systems
20 mA
Battery charging current
0,2A /0,5A - jumper selectable
Short-circuit protection SCP
Electronic - current limitation and/or activation of the F
BAT
melting fuse in the battery circuit (failure requires fuse
replacement). Automatic return.
Overload protection OLP
110% ÷ 150% (@25ºC) of power supply, manual restart (the
fault requires disconnection of the DC output circuit)
Battery circuit SCP and reverse polarity protections
F 2A - current limitation, F
BAT
fuse (in case of a failure, fuse-
element replacement required)
Surge protection
varistors
Excessive discharge protection UVP
U<20V (
± 5%) – disconnect of connection battery,
configuration by the P
BAT
jumper
LED indication:
- AC diode indicating AC power
- AUX diode indicating DC at the PSU output
- LB diode indicating battery charging process
- red, normal status: permanently illuminated, failure: off
- green, normal status: permanently illuminated, failure: off
- yellow, the light intensity depends on battery charging
current
Technical outputs:
- EPS; output indicating AC power failure
- PSU; output indicating DC absence /
PSU
module failure
- OC type: 50mA max.
Normal operation: L state (0V),
failure: hi-Z state,
- delay time 10s/60s (+/-20%)
– jumper selectable
T
AC
- OC type: 50mA max.
Normal operation: L state (0V),
failure: hi-Z state,
