cui.com
date 01/17/2013 │ page 5 of 7CUI Inc │ SERIES: VDRS-240 │ DESCRIPTION: AC-DC DIN RAIL
I
T
I-normal
I-peak
T-peak
T-normal
0
I
T
I-peak
T-peak
0
3 ~ 4 sec
0
2
4
6
8
10
12
14
16
18
20
22
24
10% 20% 30% 40% 50% 60% 70% 80% 90%
T-normal
I-normal
0
2
4
6
8
10
12
14
16
18
20
22
110% 115% 120% 125% 130% 135% 140% 145% 150%
T-peak
I-peak
T-peak presents while the unit is working within 110%~150% raterd output power.
See Curve “B” for the variation in T-Peak between output current and hold-up time.
If T-peak is more than the time setting in Curve “B”, the output current will drop to
the constant limit (I-normal) that is 105% of the rated power. Meanwhile, I-normal
and T-normal will be presenting. See Curve “A” for the timing back to I-Peak of
T-normal and this mode can be used for easy 2-stage battery chargers.
CURVE BCURVE A
T-peak presents while the unit is working within 110%~150% rated output power.
See Curve “B” for the variation of T-peak between output current and hold-up time.
If T-peak is more than the time setting in Curve “B”, the output voltage sill be shut
down for 3~4 seconds and then auto-recover.
PEAK LOADING SW1 ON
(
MODE1
)
DEFAULT SETTING
PEAK LOADING SW1 OFF
(
MODE2
)
For more information, please visit the product page.
