7
5.3 Synoptic panel
A synoptic panel is located on the front of the energy station. This is used to visualize the various alarms, the state of functioning
and the measurements. It provides immediate signals, either illuminated or acoustic, which illustrate the general condition of the
machine and more detailed information, including various measurements, which the operator can consult by using the keyboard
and the display.
5.4 Acoustic signal
The acoustic alarm activates in case there is an electricity shortage and/or any other operation irregularity should occur. Any key
pressed silent the buzzer.
5.5 Monitor Display
The energy station indicates its state of functioning through various illuminated signals. In reference to figure F1, the signals
illuminated by led diodes are indicated in Chart :
LED
MESSAGE
MEANING
GREEN LED
“PLANT FEED”
On with Plant is powered.
Off with Plant isn’t powered.
RED LED
“BATTERY MODE”
On with line shortage.
Off with line present.
RED LED
“ALARM”
Usually off.
On for signaling generic alarm.
5.6 Alarm contact
The functioning alarm signals are isolated through relay free contacts available with the indications shown on chart :
RELAY FREE CONTACTS
OPEN
CLOSE
“CN1”
Plant feed
1-3 1-2
“CN2”
Battery mode
4-6 4-5
“CN3”
Battery Low
7-9 7-8
“CN4”
Alarm
10-12 10-11
When running and in normal functioning condition, contacts “CN1” – “CN3” – “CN4” are OPEN
5.7 PROTECTION ELEMENTS
The energy station, SCS2ENMD48, is provided with the following protection:
Output fuses breaker towards the loads are positioned on the front panel of the SCS2ENMD48. If one of this
opens in case of over-current absorption an alarm is generated. This alarm is displayed and set the
corresponding alarm relè.
The AC input fuses are positioned on the front panel of the system together the breaker of the loads and the
battery;
Output low battery voltage to save battery life (43Vdc ± 2%);
Output current limitation.
Output over voltage protection (Vout > 57 Vdc);
Overheating
protection;
Thanks to the presence of this protections, it is not necessary to install other types of line protection on the
telecommunication plants which are supplied by the energy station SCS2ENMD48.
