Input Current Limitations
The current for an optoisolated input shall not exceed 11mA. Some applications may require the use of an external
resistor (R) to limit the amount of current for an input. These external resistors can be placed in series between the
inputs and their power supply (Vs). To determine if an additional resistor (R) is required, follow Equation A1 below
for guidance.
Equation A1: Current limitation
requirements for each input.
Appendices ▫ 193 DMC-40x0 User Manual
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