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Saia-Burgess Controls AG
Hardware manual for PCD3 series │ Document 26-789 ENG19│ 2018-06-29
Planning an application
Guidance
2-6
2
The easiest way to compile this is with the Device Configurator of the PG5 Saia Project
Manager (SPM).
Calculate the load current at the in 5 V supply with the table in the
27-600 I / O Modules for PCD1 / PCD2 manual under chapter Power con-
sumption of the modules.
Comment: Use the worst or highest values.
Verify if the max. supply current of the CPU, RIO or PCD3.C200 is suffi
-
cient. To supply one module segment separately, use PCD3.C200 instead
of PCD3.C1xx. Verify whether the load current of all segments does not
exceed the max. supply current of the CPU / RIO / PCD3.C200. The max.
supply currents can be found in chapter 3.9.2 Internal power supply
Calculate current consumption at 24 V supply. The current consumption of
the PCD3 configuration can be determined in
(use the worst or highest values)
Determine the corresponding connection cables for the module carriers
Calculate the number of required connector blocks for the I/O modules and
order them separately. Screw terminals or spring terminals can be ordered
as required. Not all modules require the same type of connectors.
Please note that in most applications, the load currents of the outputs are the heavi-
est burden on the 24 V supply. With 16 outputs with a load current of 0.5 A each, this is
already 8 A, if all outputs are switched on.