Data Sheet

UC10.241, UC10.242
UC-Series
24V, 15A, CAPACITOR-BASED DC-UPS
23.6. SERIES USE FOR 48V APPLICATIONS
A series connection for 48V applications is allowed when utilizing two individual power supplies and two DC-UPSs.
Fig. 23-4 Wiring example for 48V serial use
+ +
- -
Power
Supply
24V Output
+ +
- -
Power
Supply
24V Output
UC10
DC-UPS
IN OUT
++
-
-
UC10
DC-UPS
IN OUT
++
-
-
24/27
Inhibit
+ -
Ready Buffering PC Mode Inhibit
+ -
Ready Buffering PC Mode
48V
Load
+
-
23.7. USING THE INHIBIT-INPUT
The inhibit-input disables buffering. In normal mode, a static signal is required. In buffer mode, a pulse with a
minimum length of 250ms is required to stop buffering. The inhibit signal is stored and can be reset by cycling the
input voltage.
For service purposes, the inhibit input can also be used to connect a service switch. Therefore, the inhibit signal can be
supplied from the output of the DC-UPS.
Fig. 23-5 Wiring example for inhibit input
24V
Power
Supply
+
-
Buffered
Load
+
-
UC10
DC-UPS
OUTIN
+
-
+
-
Service
Switch
I
n
h
i
b
i
t
+ -
R
e
a
d
y
B
u
f
f
e
r
i
n
g
P
C
M
o
d
e
May 2016 / Rev. 2.2 DS-UC10.241-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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