Dewetron DW2-UPS-250-DC, Technical Reference Manual

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450160 • DW2-UPS-250-DC • Technical Reference Manual • Printing version 1.0.2 • March 09, 2020
DW2-UPS-250-DC
System specifications
DW2-UPS-250-DC - external UPS
> DC power supply with 3 hot swappable batteries
> 250 W power for one hour with internal batteries
> Output voltage of 12 V
DC
to 16 V
DC
when running from
batteries or 24 V
DC
when powered from DC
> Charge and discharge state via COM interface
> Including external 115 / 230 V
AC
adaptor
DW2-UPS-250-DC
Input
Rated input voltage
11 to 32 V
DC
(input galvanically isolated and protected against wrong polarity)
Max. input current 34.7 A
Max. input power 270 W
Input connector 2-pin female LEMO connector (EGJ.3B.302)
Output
Output voltage
24 V
DC
(when powered from DC)
12 to 16 V
DC
(when running from internal batteries)
Output power max. 250 W (with 3 batteries installed)
Output current 10.4 A (when powered from DC)
20.8 A (when running from internal batteries @ 12 V
DC
)
Output connector 2-pin female LEMO connector (EGG.2B.302)
Batteries
Type
Li-ion NH2054HD31 (item code: BAT-89-WH)
Nominal voltage 14.4 V
Energy density 89 Wh (267 Wh with 3 batteries installed)
Battery slots 3 battery slots available (3 batteries included with delivery)
Expectable runtime with 3 batteries
DEWE2-A4
TRIONet
depending on configuration: ~2 hours (average config.); ~1.2 hours (max. config.)
depending on configuration: ~8 hours (average config.); 4.5 hours (max. config.)
Environmental
Operating temperature
0 °C to 50 °C when discharging batteries
0 °C to 45 °C when charging batteries
Vibration test
EN 60068-2-6
Shape Sine
Frequency range 10 - 150 Hz
Acceleration 2 g
Sweep rate 1 oct./min.
Duration 20 Cycles
Test in 3 directions
Vibration test
EN 60721-3-2
Class 2M2
Shape Random
Frequency range 10 - 200 Hz
Power spectral density 1 m/s² / Hz from 10 – 200 Hz
Duration 30 Minutes per axis
Shocktests
EN 60068-2-27
Shape Half-sine
Acceleration amplitude 15 g
Duration 11 ms
Test in 3 axis, 3 shocks in each axis and direction
Dimensions (W x D x H) approx. 318 x 253 x 47 mm (12.51 x 9.96 x 1.85 in.)
Weight 2 kg (4.4 lbs) w/o batteries