CPS20.241-60
C-Series
24V,
400W,
DC/DC
C
ONVERTER
Sep. 2019 / Rev. 1.1 DS-CPS20.241-60-EN
All parameters are specified at 24.5V, 16.3A, 110Vdc, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
7/22
7.
H
OLD
-
UP
T
IME
The internal capacitor, which supplies the energy for the hold-up time is isolated by a diode to the input voltage. A
short on the input line does not discharge the internal hold-up capacitor.
Hold-up Time
typ.
80ms
at 8.2A, see Fig. 7-1
min.
64ms
at 8.2A, see Fig. 7-1
typ.
35ms
at 16.3A, see Fig. 7-1
min.
28ms
at 16.3A, see Fig. 7-1
Fig. 7-1
Hold-up time vs. input voltage
Fig. 7-2
Shut-down behavior, definitions
0
20
40
60
100ms
70
90
110
130
150Vdc
Input Voltage
80
Hold-up Time
at 16.3A, typ.
at 8.2A, min.
at 8.2A, typ.
at 16.3A, min.
- 5%
Hold-up Time
Output
Voltage
Input
Voltage
8.
DC-OK
R
ELAY
C
ONTACT
This feature monitors the output voltage, which is produced by the DC/DC converter itself. It is independent of a back-
fed voltage from a unit connected in parallel to the DC/DC converter output.
Contact closes
As soon as the output voltage reaches 22V.
Contact opens
As soon as the output voltage falls below 22V.
Short dips will be extended to a signal length of 100ms. Dips shorter than 1ms will be ignored.
Contact ratings
max.
60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A
resistive load
min.
1mA at 5Vdc
min. permissible load
Isolation voltage
See dielectric strength table in section 18.
Fig. 8-1
DC-ok relay contact behavior
100ms
22V
<
1ms
open
open
closed
closed
>
1ms
