Omron CP1L - Page 754

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Specifications for External Power Supply Expansion Appendix H
• 10-point, 14-point and 20-point AC-power-supply CPU Units (Model CP1L-LDR-A)
The external power supply for 10-point AC-power-supply CPU Units (Model CP1L-LDR-A) as well as
14-point and 20-point power-supply CPU Units manufactured since May 2008 (Model CP1L-LDR-A)
can be used beyond 200mA within the capacity range of the power supply built in the CPU Units.
Please calculate the usable capacity of external power supply according to the following example.
Calculation example of the capacity limit of external power supply
Example 1
Example 2
For 14-point and 20-point AC-power-supply CPU Units manufactured before May 2008, the specifications are
as written in the section 1-2-3 Restrictions on System Configuration.
CPU Units Expansion (I/O) Units Total Limit
1
st
unit 2
nd
unit 3
rd
unit
Model
CP1L-M20DR-A
Model
CP1W-DA041
Disabled Disabled
5V 0.20A 0.08A 0.0A 0.0A 0.28A ≤0.85A
24V 0.05A 0.124A 0.0A 0.0A 0.174A ≤0.35A
Power
consumption
5V×0.28A=1.4W
24V×0.174A=4.176W
To t al
5.576W
≤9.5W
Usable capac-
ity of external
power supply
18.5W (Total of usable power consumption)-5.576W=3.924W
3.924W/24V=0.163A
0.163A ≤0.35A
CPU Units Expansion (I/O) Units Total Limit
1
st
unit 2
nd
unit 3
rd
unit
Model
CP1L-M14DR-A
None Disabled Disabled
5V 0.18A 0.0A 0.0A 0.0A 0.18A ≤0.85A
24V 0.04A 0.0A 0.0A 0.0A 0.04A ≤0.35A
Power
consumption
5V×0.18A=0.9W
24V×0.04A=0.96W
To t al
1.860W
≤9.5W
Usable capac-
ity of external
power supply
18.5W (Total of usable power consumption)-1.860W=7.64W
7.64W/24V=0.318A
0.318A ≤0.35A