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Output relay failure indication is active for:
•
Low battery (voltage lower than 20,8 Vdc)
•
Overcharged battery (voltage over 28 Vdc)
•
Disconnected battery
•
Battery internal resistance > 1 ohm
•
Faulty fuse
Even if not imperative, the following sequence of connection is suggested:
1.
Connect mains and ground to the concerned terminal AC1. Turn ON the AC power. The load LEDs flash and after about 20
seconds the missed battery LED flashes
2.
Connect the battery. After 20 seconds the LED switches off
3.
Connect the loads: the LEDs, indicating the current supplied, light up
Battery voltage
is monitored continuously, if the voltage drops below V(B)low = 20,8V, the relay "GUASTO" turns on and the Front panel
"Battery Low" lights on.
If the voltage drops below V(B)min = 19,8V, the battery is isolated to avoid the deep discharge. After the battery gets
unplugged, the battery will be connected to the system if the voltage is higher than 16V.
Battery internal resistance is tested every 2,5 hours, at least. If the resistance is higher than 1 Ohm a warning in raised. The Front Panel
LED "Failure" is lighted on, the LED "Overcharged battery" slow flashes and the internal DL1 quick flashes.
Battery Fuse monitoring, in case of fault of the fuse, the LED "Low battery" starts to flash slowly. When the fuse is replaced the signal
disappear.
Fuses monitoring, if a fuse became open the LED lights on, when the cause of fault disappears the LED lights off.
Mains monitoring , when the mains is missed, The Front Panel LED "Mains" is lighted off, and the relay "RETE" is activated. When the
mains return LED "Mains" is lighted on, and the relay "RETE" is restored.
Periodical programmed servicing must be carried out by qualified personnel in order to prevent the possibility of a malfunctioning of the
power supply. It is recommended to carry out servicing every 6 months and to evaluate control panel of the system in order to check
possible alarms during tests.
-
Check the connections of the 230 Vac supplying lines
-
Check the connections of the alarm indication lines and related shields
-
Check the battery connections, they have to be well tightened and there must be no oxidation
-
Check the output Voltage on the charge (see electrical specifications)
Although the power supply is equipped with a self-diagnosis system carrying out a periodical control of the battery and indicating possible
failures, it is suggested to manually check the battery every six months.
-
Disconnect the battery and check if the voltage of the power supply is within the values shown.
-
After re-connecting the battery, disconnect the primary supplying and check if the battery can maintain the Voltage on the higher
23 Vdc charge. On the contrary, replace battery immediately.
-
Check presence of related alarms during tests.
The DL1 LED shows the failures:
In case of contemporary presence of more alarms, the LED indication follows the priority shown in the table 6
Priority
1
Slow flashing (1 Hz)
2
Quick flashing (4 Hz)
3
On fix
4
Off
LEDs DL2, DL3, DL4 and DL5 show the current used by the outputs:
Condition
I < 0,3 A
I < 0,625 A
0,625 A < I < 1,25A
1,25 A < I < 1,875A
1,875 A < I < 2,5A
2,5A < I < 3,125 A
3,125 A < I < 3,75A
3,75A < I < 4,375 A
4,375 A < I < 5A
OVERLOAD I > 5A
Note: SLOW FLASH = 1 Hz ;
S-326.1-ALI50EN-ENG A. 1 05-2015
START UP OF THE SYSTEM
SYSTEM RUNNING
CONTROL BOARD LEDs
DL1
Battery disconnected
Battery resistance > 1 ohm
Fuse F1 (battery) interrupted
None of previous failures
DL2
DL3
OFF
OFF
SLOW FLASH
OFF
ON
OFF
ON
SLOW FLASH
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
SLOW FLASH
SLOW FLASH
SERVICING
ALARM
LED Status
DL4
OFF
OFF
OFF
OFF
OFF
SLOW FLASH
ON
ON
ON
SLOW FLASH
Tab 6
DL5
OFF
OFF
OFF
OFF
OFF
OFF
OFF
SLOW FLASH
ON
Tab 7
SLOW FLASH
Page 6 of 7
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