Puls UB10.241 UPS Guia De Especificação
UB10.241
U–Series
24V, 10A, DC-UPS
7. O
UTPUT IN
B
UFFER
M
ODE
If the input voltage falls below a certain value (transfer threshold level), the DC-UPS starts buffering without any
interruption or voltage dips. Buffering is possible even if the battery is not fully charged.
interruption or voltage dips. Buffering is possible even if the battery is not fully charged.
nom.
DC 24V
Output voltage is stabilized and independent from
battery voltage
battery voltage
Output voltage in buffer mode
22.45V
±1%, at no load,
22.25V
±1%, at 10A output current
typ.
80mV higher than the output voltage in buffer mode
Transfer threshold for buffering
Ripple and noise voltage
max.
20mVpp
20Hz to 20MHz, 50Ohm
Output
current
nom. 10A
Continuously
allowed
15A
< 5s with full output voltage *)
Short-circuit
current
min.
17.9A
Load impedance 100mOhm **)
max.
21A
Load impedance 100mOhm **)
*)
If the output current is in the range between 10A and 15A for longer than 5s, a hardware controlled reduction of the
maximal output current to 10A occurs. If the 10A are not sufficient to maintain the 24V, buffering stops after another 5s. The
buffering is possible again as soon as the input voltage recovers.
maximal output current to 10A occurs. If the 10A are not sufficient to maintain the 24V, buffering stops after another 5s. The
buffering is possible again as soon as the input voltage recovers.
**)
If the nominal output voltage cannot be maintained in buffer mode, the DC-UPS switches off after 5s to save battery
capacity.
capacity.
Fig. 7-1 Buffering transition, definitions
Fig. 7-2 Transfer behavior, typ.
5/23
Buffer mode
Output
voltage
voltage
24V
28V
Input
voltage
voltage
t
t
Transfer
threshold
500ms/DIV
0V
Output
Voltage
Voltage
Input Voltage
24V
22.25V at 10A
24V
Fig. 7-4 Output voltage vs. output current in
buffer mode, typ.
Fig. 7-3 Available output current in buffer
mode
Output Voltage
A
B
C
B
C
Continuously available
Available for 5s then auto switching to curve
Available for 5s then auto switching to curve
Buffering will stop after 5s
D
0
0
5
10
15
20
5
10
15
25V
20
25A
Output
Current
A
B
C
D
D
Buffering will stop after 5s
Output
Current
Current
0
0
5 Sec.
15A
10A
Time
5A
BonusPower
®
June. 2010 / Rev. 1.3 DS-UB10.241-EN
All parameters are specified at an input voltage of 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time
unless otherwise noted. It is assumed that the input power source can deliver a sufficient output current.
All parameters are specified at an input voltage of 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time
unless otherwise noted. It is assumed that the input power source can deliver a sufficient output current.
www.pulspower.com Phone +49 89 9278 0 Germany