User`s manual

17
6. PRECAUTION FOR USING QA6ADP
6.1 Current Consumption of QA6ADP
Since 5VDC is supplied to the QA6ADP from the power supply module
of the main base unit, take the current consumption of the QA6ADP into
consideration when selecting the power supply module for the main
base unit.
*1 The quantity of the QA6ADP includes the QA6ADP when the A6B is used.
The following shows the concept of the current consumption of the
power supply module mounted on the main base unit.
Symbol Description
I Rated current of power supply module on the main base unit
I0 Current consumption of CPU and I/O modules mounted on the main base unit
I1 to I4
Current consumption of I/O mounted on the extension base unit in first to fourth
stages
IA Current consumption of the QA6ADP
*1
n: Quantity of QA6ADP in system
Current consumption
of QA6ADP n
Current consumption
of I/O of A5B
Current consumption
of I/O of Q5B
Current consumption of CPU
and I/O of main base unit
+
+
+
I4
IA
IA
I3
I2
Fourth extension stage
Third extension stage
Second extension stage
First extension stage
Extension base unit (A6B)
Extension base unit (A5B)
Extension base unit (A5B)
Extension base unit (QA6B)
Main base unit
IA
1I
Power
supply
Power
supply
I0
Power
supply