User`s manual

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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

Q38DB

Q173D

CPU

QY10 QY10Q03UD

CPU

Q61P

MR-HDP01

Q170ENC

QX40 QX40 Q173DPXQ172DLX Q172DEX

• 5VDC current consumption of each module

Q03UDCPU : 0.33 [A] Q170ENC : 0.20 [A]

Q173DCPU : 1.25 [A] Q173DPX : 0.38 [A]

QX40 : 0.05 [A] MR-HDP01 : 0.06 [A]

Q172DLX : 0.06 [A] QY10 : 0.43 [A]

Q172DEX : 0.19 [A] Q38DB : 0.228 [A]

• Power consumption of overall modules

5V = 0.33 + 1.25 + 0.05

2 + 0.06 + 0.19 + 0.20 + 0.38 + 0.06

2 +

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.