Mitsubishi Electric Q170MSCPU User Manual page 121

3 DESIGN
(7) Example of average power consumption calculation
(a) System configuration
Q170MS
CPU
(b) 5VDC/24VDC current consumption of each module
Model name
Q170MSCPU
Incremental synchronous
encoder
(Note-1)
QX40
Q173DPX
MR-HDP01
(Note-1)
QY40P
QJ71LP21-25
(Note-1)
Q62DAN
(Note-1)
Q55B
(Note-1): 5VDC internal current consumption of shared equipments with PLC might
be changed. Be sure to refer to the MELSEC-Q series PLC Manuals.
(c) Total power consumption for 5VDC logic circuits of all modules
W = (2.50 + 0.20 + 0.05 + 0.38 + 0.06
5V
= 21.475 [W]
(d) Power consumption of internal power supply
1
W = 21.475 = 5.369 [W]
PW
4
(e) A total of 24VDC average power consumption of the internal output circuit
and output module
W = (0.08 + 1.60)
24V
(f) Average power consumption due to voltage drop in the output section of the
internal output circuit and output module
W = 0.04
OUT
Incremental synchronous encoder
QX40 Q173D QY40P QJ71
PX LP21-25
MR-HDP01
MR-HDP01
2.50 [A]
0.20 [A]
0.05 [A]
0.38 [A]
0.06 [A]
0.065 [A]
(Note-1)
0.55 [A]
0.33 [A]
0.10 [A]
24 1 = 40.32 [W]
2.75 2 1 + 0.1
3 - 14
Q55B
Q62DAN
5VDC
(Internal output circuit)
2 + 0.065 + 0.55 + 0.33 + 0.10)
0.2 16 1 = 0.54 [W]
24VDC
0.08 [A]
—
—
—
—
1.60 [A]
—
0.15 [A]
—
5