User Instructions
www.pulsar.pl   EN54C    RED POWER plus 
13 
5. Functions 
5.1. Control Panel. 
The PSU is equipped with a LED panel allowing checking the current status of the power supply. 
Fig. 6. Control panel. 
Table 3. The description of the buttons and LEDs of the LCD panel. 
- green LED indicating 230 V voltage 
- green LED AUX indicating power at the AUX1 and AUX2 output of the PSU  
- yellow LED ALARM indicating collective failure 
5.2.  Technical outputs. 
The power supply is fitted with relay indication outputs changing state upon  the occurrence of a specific 
event. 
Fig. 7. Electrical diagram of relay outputs. 
  EPS - output indicating 230 V power loss. 
The output indicates 230 V power loss. Under normal status – with the 230 V supply on, the output 
is closed. In case of power failure, the PSU will switch the output into the open position after a time 10s. 
Fig. 8. EPS technical output. 
CAUTION! In Figure the set of contacts shows a potential-free status of the relay, which corresponds 
to power supply failure. 










