Installation manual
Description of the Previdia Ultra system parts
29
[D]
OUT1
Supervised output
[J]
Connector for additional optional thermal
probe
[E]
OUT 2
[K]
CAN bar connector
[F]
RELAY
Relay - voltage free
contact
[L]
Fan connector
IFAMPSU LED
Colour
On solid
Flashing
CAN
Blue
Activity on the CAN communication BUS
OVERLOAD
Green
No overheating or over-
absorption trouble
Slow flashing: overheating
Fast flashing: overvoltage
MAINS
Yellow
Mains failure fault
Fast flashing: system ground fault
BATTERY
Yellow
Battery inefficiency or fault
-
IFAMPSU module - technical specifications
Power supply voltage
230V~ (+10% -15%)
115V~ (+10% -15%)
50/60 Hz
Maximum current draw from mains
5A @230V~
8.5A @115V~
Output voltage
26V
nominal ±10%
Maximum output ripple
200mV pp
Maximum output current of the power group
(Imax b according to EN54-4)
38A @230V~
32A @115V~
Maximum current for external loads
(Imax a according to EN54-4)
35A @230V~
29A @115V~
Imin
100mA
Power factor
0.95 @ 230V ~ at full load
0.99 @ 115V ~ at full load
Overvoltage protection
105 /135% of the declared potential
(constant current limit, automatic reset to the reset
of the overload conditions)
Overvoltage category
CAT II 2500 V
Overload protection
29 / 33 V
Overheating protection
Output voltage suspension, reactivation to reset
temperature
Batteries
Type
2 x 12V 38Ah, NP38-121 or
2 x 12 V 24Ah, NPL24-12I or
2 x 12 V 17 Ah, NP 17 -12-FR or equivalent
with UL94-V1 flame class enclosure or higher
Maximum voltage charge adapted
to temperature
28V
Battery charger
3A
Maximum internal resistance of
battery
(Ri Max)
0,1Ohm
Battery shutdown voltage
19.5V
Operating temperature
from -5°C to +40°C
Isolation class
I
