DEWETRON DEWE-DCDC-24-300-ISO Technical Reference Manual

DEWE-DCDC-24-300-ISO
External DC/DC power supply
DC/DC power supply
Input:
Input voltage:
Max. input current:
Input connector:
10 to 36 VDC (the input is protected against wrong polarity
36 A @ 10 VDC input voltage (15 A @ 24 VDC)
2-pin LEMO connector male, type: EGJ.2B.302
Output:
Output voltages:
Output power:
Output current:
Output connector:
24 V
300 W
12.5 A
2-pin LEMO connector female, type: EGG.2B.302
Operating temperature:
Derating above 45 °C:
-20 °C to 60 °C
8 Watt/°C
Isolation voltage:
DEWE-DCDC-24-300-ISO
500 VDC
Status LED:
Dimensions: (W x D x H):
Weight:
Green LED indicates an output voltage > 21 VDC
approx. 219 x 122 x 50 mm (8.6 x 4.8 x 2 in.)
1.3 kg (2.9 lbs)
Power on sequence:
First: Connect the system and the DEWE-DCDC-24-300 followed by the power supply connection.
As an option the DEWE-xxx is shipped with the DEWE-DCDC-24-300-ISO. This power supply serves
galvanic isolated voltage with a wide input range from 10 to 36 VDC. The output voltage is fixed with 24 VDC
with a maximum output power of 300 W.
Depending on the configuration, the DEWE-xxx takes usually not more than 150 W. The typical power
consumption is just around 70 W. However, if the batteries are empty the input current can go up to 12
Ampere which is an equivalent power consumption of 280 Watt! If the unit is supplied from a typical board
supply of 12 V it needs an input current of 28 A!
If this high power is not available in the board supply please operate the DEWE-xxx without or with charged
batteries.
Dimensions*
219
* Dimensions in mm
(1 inch = 25.4 mm)
Input connector
2-
Lemo EGJ.2B.302
122
2
49,8
Output connector
Pin assignment
1: 10 .. 36 VDC input
2: GND
1+
146
136
20,3
15,7
5
16 0
Pin assignment
1: 24 VDC output
2: GND
1+
2-
Lemo EGG.2B.302
Optional cables: C8502 LEMO 2B jack to banana plugs, 2 m.
1
DEWE-DCDC-24-300-ISO
Notes
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