Dewetron EPAD2 Series - Power Supply Considerations

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EPAD2/CPAD2/CPAD3 series modules • Technical Reference Manual • Printing version 1.0.2 • October 04, 2016
Power supply considerations
Power Supply considerations
Depending on the power supply only a certain number of modules can be connected. If longer cables are
used this number is reduced because of the cable resistance.
Typical congurations:
12 V, 200 mA (DSUB-9 from ORION board)
5 m bus length max. 5 xPAD2 modules max. 2 CPAD3 modules
50 m bus length max. 4 xPAD2 modules max. 2 CPAD3 modules
12 V, 1 A (EPAD connector)
10 m bus length max. 20 xPAD2 modules max. 10 CPAD3 modules
50 m bus length max. 12 xPAD2 modules max. 6 CPAD3 modules
100 m bus length max. 6 xPAD2 modules max. 3 CPAD3 modules
24 V, 1.5 A (External power supply)
10 m bus length max. 60 xPAD2 modules max. 30 CPAD3 modules
50 m bus length max. 45 xPAD2 modules max. 22 CPAD3 modules
100 m bus length max. 25 xPAD2 modules max. 12 CPAD3 modules
NOTE: Please
consider that the
CPAD3 modules do
have an increased
power consumption
(1 W each module).
Compared to xPAD2,
the amount of CPAD3
modules is reduced
by half when using
CPAD3 modules only!
!