IDEC MICROSmart FC6A Series, User Manual

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FC6A S
ERIES
MICROS
MART
U
SER
’
S
M
ANUAL
FC9Y-B1722 3-41
3: I
NSTALLATION AND
W
IRING
■
Example 2 of Calculating the Power Consumed by the Main Power Supply
This example shows how to calculate the power consumed by the main power supply when the expansion modules and cartridge
in the below diagram are connected to the Plus 16-I/O type.
The power consumed by the main power supply will differ if the CPU module is different, even if the system
configuration is the same.
FC6A-C16R1CE : 3.36 [W] when alone
*1
FC6A-PC4 : ≈ 1.04 [W]
FC6A-R081 : ≈ 1.9 [W]
FC6A-PH1 + FC6A-PJ2A : ≈ 1.73 [W]
P
in
≈ 3.36 + 1.04 + 1.9 + 1.73
≈ 8.03 [W]
*1 For the power consumption of each CPU module alone, see "Product Specifications" on page 2-1.
Example:
FC6A-D16R1CEE : 2.88 [W] when alone
*1
FC6A-PJ2A :
FC6A-PK2AV :
FC6A-R161 :
P
in
≈ 2.88 + 0.17 + 0.7 + 2.64
≈ 6.39 [W]
*1 For the power consumption of each CPU module alone, see "Product Specifications" on page 2-1.
P
in
[W]
24V DC
FC6A-R081
FC6A-PJ2A FC6A-PC4
FC6A-PH1 FC6A-C16R1CE
P
in
[W]
24V DC
FC6A-PJ2A
FC6A-PK2AV
FC6A-R161 FC6A-D16R1CEE
0.75
× 5 V
≈ 0.17 [W]
( )
0.9 × 5 V
0.035 A × 3.3 V
=
≈ 0.7 [W]
0.75
+ 0.08 A × 5 V
{ ( ) }
0.9 × 5 V
0.035 A × 3.3 V
0.75
0.05 A × 5 V
+ ( 0.006 A × 16 points × 24 V ) ≈ 2.64 [W]