Mitsubishi Electric Q172DCPU User Manual page 55

2 SYSTEM CONFIGURATION
(3) Selection of the power supply module
The power supply module is selected according to the total of current
consumption of the I/O modules, intelligent function module, and peripheral
devices supplied by its power module. (Select the power supply module in
consideration of the current consumption of the peripheral device connected to
the Q170ENC, MR-HDP01 etc.)
5VDC internal current consumption of shared equipments with PLC might be
changed. Be sure to refer to the PLC Manuals. .
(a) Calculation example of power supply selection
<System configuration (Q173DCPU use)>
Q61P Q03UD
CPU
• 5VDC current consumption of each module
Q03UDCPU
Q173DCPU
QX40
Q172DLX
Q172DEX
• Power consumption of overall modules
I = 0.33 + 1.25 + 0.05
5V
0.43 2 + 0.228 = 3.718[A]
Select of the power supply module (Q61P (100/240VAC) 6A) according to
this internal current consumption 3.718[A].
(Note) : Configure the system in such a way that the total current
consumption at 5VDC of all the modules is less than the
allowable value.
Q173D QX40 QX40 Q172DLX Q172DEX
CPU
: 0.33 [A]
: 1.25 [A]
: 0.05 [A]
: 0.06 [A]
: 0.19 [A]
2 + 0.06 + 0.19 + 0.20 + 0.38 + 0.06
2 - 34
Q173DPX QY10
MR-HDP01
MR-HDP01
Q170ENC
Q170ENC : 0.20 [A]
Q173DPX : 0.38 [A]
MR-HDP01 : 0.06 [A]
QY10 : 0.43 [A]
Q38DB : 0.228 [A]
Q38DB
QY10
2 +