Owner manual

RMS Technologies Page 15 Version 1.04
IMDP23/IMDEP23 Manual 8/4/2010
If the desired voltage level is not listed above, below is how to calculate the resistor and
wattage:
Amps
R
VVoltage
010.0
470
25.1



or










 470
010.0
25.1
Amps
VVoltage
R
2
Re AmpssistorPower 
or
AmpssistorWattage 0001.0Re 
Equation 1: Resistance Equations
Equation 2: Wattage equations
Figure 18: Internal Schematic
For easier connection, simply connect pin 6 to pin 7. This will take the IMDP23’s internal
5VDC and supply the opto reference, and you therefore wouldn’t need a separate supply.
V
f
= 1.25V
V
f
= 1.25V
V
f
= 1.25V
470Ω
470Ω
470Ω