3
1.3. Description of PSU components and connectors.
Table 2. Elements and connector of PSU (see Fig. 2)
Element no.
Description
[1]
Main fuse
[2]
L-N
power supply connector 230 V AC,
PE
protection connector
[3]
V
ADJ
, potentiometer,
output voltage adjustment
12
– 15 V DC
[4]
LED (green) indicating presence of voltage at output of the PSU
[5]
Fuse
in AUX circuits
[6]
AUX2
output
[7]
AUX3
output
[8]
AUX4
output
Fig. 2. View of power supply module PSDCSEP-12V4x1A
1.4. Specifications.
- PSU parameters (tab. 3)
- operation safety (tab. 4)
- operating parameters (tab. 5)
Table 3. PSU parameters.
Model
PSDC-12V4x1A
Power supply
~ 100
– 240 V; 1A; 50/60 Hz
Inrush current
40 A
PSU power
48 W max.
Output current
4x 1 A
Efficiency
82%
Output voltage (factory settings)
12 V DC
Adjustment range U
AUX
independent for each output: 12
– 15 V DC
Ripple voltage
50mV p-p max.
Short circuit protection SCP
4x F 1A glass fuse fast blow
Overload protection OLP
105
– 150% PSU power, automatically recovered
Surge protection
varistors
Over voltage protection OVP
>19V (automatic recovery)
Protection in 230 V circuit
glass fuse T5A
LED operation indication
- LEDs on PCB of power supply unit: The green L1...L4 LEDs indicate the power