Omron CP1L CPU UNIT - 03-2009, Operation Manual

Page: 799 / 810

765
Appendix H
Specifications for External Power Supply
Expansion
When using the external power supply for AC-power-supply CPU Units, the following limitations apply:
• 30-point, 40-point and 60-point AC-power-supply CPU Units (Model CP1L-M DR-A)
The external power supply for the 30-point, 40-point and 60-point AC-power-supply CPU Units (Model
CP1L-M
DR-A) can be used beyond 300mA 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
CPU Units Expansion (I/O) Units Total Limit
1
st
unit 2
nd
unit 3
rd
unit
Model
CP1L-M40DR-A Model
CP1W-DA041 Model
CP1W-DA041 Model
CP1W-DA041
5V 0.22A 0.08A 0.08A 0.08A 0.46A
≤
1.2A
24V 0.08A 0.124A 0.124A 0.124A 0.452A
≤
0.7A
Power
consumption 5V×0.46A=2.3W
24V×0.452A=10.848W Total
13.148W
≤
18.5W
Usable capac-
ity of external
power supply 18.5W (Total of usable power consumption)-13.148W=5.352W
5.352W/24V=0.223A 0.223A
≤
0.7A
CPU Units Expansion (I/O) Units Total Limit
1
st
unit 2
nd
unit 3
rd
unit
Model
CP1L-M40DR-A Model
CP1W-20EDT None None
5V 0.22A 0.130A 0.0A 0.0A 0.35A
≤
1.2A
24V 0.08A 0.0A 0.0A 0.0A 0.08A
≤
0.7A
Power
consumption 5V×0.35A=1.75W
24V×0.08A=1.92W
Total
3.67W
≤
18.5W
Usable capac-
ity of external
power supply 18.5W (Total of usable power consumption)-3.67W=14.83W
14.83W/24V=0.618A 0.618A
≤
0.7A