Hardware manual PCD1.M2220-C15 │ Document 27-640 – Version ENG03 │ 2020-03-25
Saia-Burgess Controls AG
Introduction
Guidance
2-3
2
2.2.2
Planning an application
When planning PCD1.M2220-C15 applications, the following aspect must be con-
sidered:
The internal load current taken by the I/O modules from the +5V and +V supply
must not exceed the nominal supply current specified for the CPU.
When planning an application, we recommend the following procedure:
1. Select all the I/O modules according to the requirements.
2. Check the max. supply current for the CPU!
3. Estimate an intake of the 24V supply. Use the estimated values. The estimated
values can be taken from the section on the current requirement of the PCD1
I/O modules or defined using the PG5 device configurator.
For most applications, it must be noted that the outputs represent the largest
load on the 24V power supply. For 16 outputs with a load output of 0.5A each, the
load is still 8A if all the outputs are switched on.
