DL06 Micro PLC User Manual; 3rd Edition Rev. E
4–5
Chapter 4: System Design and Configuration
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Power Budgeting
The DL06 has four option card slots. To determine whether the combination of cards you
select will have sufficient power, you will need to perform a power budget calculation.
Power supplied
Power is supplied from two sources, the internal base unit power supply and, if required, an
external supply (customer furnished). The D0-06xx (AC powered) PLCs supply a limited
amount of 24VDC power. The 24VDC output can be used to power external devices.
For power budgeting, start by considering the power supplied by the base unit. All DL06 PLCs
supply the same amount of 5VDC power. Only the AC units offer 24VDC auxiliary power. Be
aware of the trade-off between 5VDC power and 24VDC power. The amount of 5VDC power
available depends on the amount of 24VDC power being used, and the amount of 24VDC
power available depends on the amount of 5VDC power consumed. Determine the amount of
internally supplied power from the table on the following page.
Power required by base unit
Because of the different I/O configurations available in the DL06 family, the power consumed
by the base unit itself varies from model to model. Subtract the amount of power required by
the base unit from the amount of power supplied by the base unit. Be sure to subtract 5VDC
and 24VDC amounts.
Power required by option cards
Next, subtract the amount of power required by the option cards you are planning to use.
Again, remember to subtract both 5VDC and 24VDC. If your power budget analysis shows
surplus power available, you should have a workable configuration.
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