CPS-EC480(R2) MANUAL
Camtec Power Supplies GmbH - Gewerbestrasse 30 - 76327 Pfinztal - Germany
P.7/12 (02/2017-01-3)
Phone +49(721)46596-0 - Fax +49(721)46596-77 -
www.camtec-gmbh.com
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(Subject to alterations. This product is not designed to be used in applications such as life support systems wherein a failure or malfunction could result in injury or death)
C/V Current Voltage Behaviour
The CPS-EC series provides a perfect current voltage chart. It has no fold
back or other abnormalities. The output voltage can drop down to zero volts
when the power supply is overloaded. The unit delivers a stable and constant
current to the outputs. The device can be used either in the CV or in the CC
mode (automatic switch over). When the output voltage is set to the maximum
demanded value and the current limit reaches its desired margin, the output
voltage drops linear down to zero and the unit delivers constant current.
Similar is when the upper margin of the voltage allows the current to be
dropped by the power reduction behaviour of the CPS-EC series. The C/V
setting must meet the Pmax = 480W!
Model
Value UA1 (V)
Value IA1 (A)
Value UA2 (V)
Value IA2 (A)
Pmax
CPS-EC480.024
30
16,0
24
20,0
480W
CPS-EC480.036
45
10,7
36
13,3
480W
CPS-EC480.048
58
8,3
48
10,0
480W
CPS-EC480.060
75
6,4
60
8,0
480W
CPS-EC480.072
90
5,3
72
6,7
480W
CPS-EC480.110
137,5
3,5
110
4,4
480W
CPS-EC480.150
180
2,7
150
3,2
480W
CPS-EC480.220
264
1,8
220
2,2
480W
CPS-EC480.300
360
1,3
300
1,6
480W
Inrush Current Limiter
The unit is featured with an electronic inrush current limiter (ex. 230Vac = 9,8Arms / 13,8Apeak). The built-in
circuit is a very precise limiter and no simple NTC thermistor solution. The circuit works with an accuracy of
±10%. The accuracy is independent from the ambient temperature and from the number of switch-on
sequences. The quickest recommended MCB is B-type 6A (230Vac) /12A (115Vac). The smallest power relay
or a contactor in front of the CPS-EC480 must cope 13,8A peak current. The inrush duration is 400ms and the
overall power up time of the unit is 500ms. See the below drawings for technical information.
Overtemperature Thermal Shutdown, Over Voltage Protection & Derating
OT Over Temperature
The maximum ambient temperature is +70°C. If the
power Supply exceeds this value (over temperature protection) it completely
shuts down (metering point 50mm from outside device). The device restarts
automatically into operation when the temperature drops to a normal value.
OVP Over Voltage Protection
Exceeding the OVP results in a locked shutdown
mode. Resuming the failure causes automatic restart into normal operation. For
the values, please read the Technical Table on page 2.
