CPS-EC480(R2) MANUAL
Camtec Power Supplies GmbH - Gewerbestrasse 30 - 76327 Pfinztal - Germany
P.6/12 (02/2017-01-3)
Phone +49(721)46596-0 - Fax +49(721)46596-77 -
www.camtec-gmbh.com
-
info@camtec-gmbh.com
(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)
Shutdown
All CPS-EC units are featured with an external shutdown (open collector).
The power supply operates when the connection is open. When the
connection is closed the power supply goes into a standby mode
(short circuited). The power supply powers up as soon as the shutdown
connections is opened. The signal through the connections is 1Vdc max. . The
shutdown connections have an internal pull-up resistor with 4700
Ω
at the plus
line (max. +12V inserted).
DC-OK (Power Good Relay)
The DC ok relay indicates if the output voltage is low and if the AC voltage is low.
The contact is galvanic insulated to the AC input and the DC output connections.
The isolation is 3000Vac with a forced isolation and covers the overall adjustment
range of the CPS-EC series up to 400Vdc. If the DC voltage is ok the relay is
closed, if the power supply unit is in false operation, in the shutdown or in the inhibit
mode, the relay is open. Considering the lower and the upper margin of the AC
voltage detection it is to say that the CPS-EC series starts at 80Vac/150Vac
depending on the AC input selector. The unit starts with 210Vdc when a DC voltage
applies to the input. Make sure to set the AC input selector to 230Vac (factory
setting) for DC input supply.
The below table of values shows the hysteresis of the lower and upper threshold margins where the DC OK
Relay indicates a low voltage. The nominal voltage of the cell voltage of a typical lead acid battery VRLA &
vented GEL & AGM is listed (OPsZ, OPzS, OPzV, OGi, OGiV, GiV types).
WARNING!
Regarding the DC-output voltage setting range it is important to consider that this data sheet shows
the guaranteed values. In practise the range will be wider and with some models the lower margin of the setting
range will be below the DC ok high margin of the DC-ok relay. Make sure that the output voltage setting will
properly stay above the DC ok high margin to avoid false messages from the relay.
Hysteresis & Threshold Margins
Model
Nominal [V]
DC ok low DC ok
high
No. of Cells
Nominal Cell [V]
Input ok
low
Input ok high
CPS-EC480.024
24V
21,5Vdc
22,8Vdc
12
26,76 – 28,80Vdc
75Vac
140Vac
175Vdc
80Vac
150Vac
210Vdc
(the power supply unit
starts at
80Vac/150Vac/210Vdc)
CPS-EC480.036
36V
32,4Vdc
34,2Vdc
18
40,14 – 43,20Vdc
CPS-EC480.048
48V
43,2Vdc
45,6Vdc
24
53,52 – 57,60Vdc
CPS-EC480.060
60V
54,0Vdc
57,0Vdc
30
66,90 – 72,00Vdc
CPS-EC480.072
72V
64,8Vdc
68,4Vdc
36
80,28 – 86,40Vdc
CPS-EC480.110
110V
99,0Vdc
104,5Vdc
54
120,42 – 129,60Vdc
CPS-EC480.150
150V
118,8Vdc
125,4Vdc
-
-
CPS-EC480.220
220V
198,0Vdc
209,0Vdc
108
240,84 – 259,20Vdc
CPS-EC480.300
300V
237,6Vdc
250,8Vdc
150
334,50 – 360,00Vdc
DC OK Indication
Power Supply Status
Normal
Low [V]
Over Temperature
Shut Down Closed
Inhibit Open
Relay Operation status
Closed
Open
Open
Open
Open
LED Signal Indication
LED
Low [V]
Over [V]
Over Temp.
Inhibit Open
Shut Down
Constant [V]
Constant [C]
CV
OFF
OFF
OFF
OFF
OFF
ON
OFF
CC
OFF
OFF
OFF
OFF
OFF
OFF
ON
OT
OFF
OFF
ON
OFF
OFF
OFF
OFF
SD/INH
OFF
OFF
OFF
ON
ON
OFF
OFF
+12V
