Automationdirect.com DirectLOGIC DL205 Series User Manual page 169

Power Budget Calculation Example
The following example shows how to calculate the power budget for the DL205 system.
Base #
0
Available Base Power
CPU Slot
Slot 0
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
Slot 7
Other
Handheld Programmer
Total Power Required
Remaining Power Available
1. Use the power budget table to fill in the power requirements for all the system
components. First, enter the amount of power supplied by the base. Next, list the
requirements for the CPU, any I/O modules, and any other devices, such as the Handheld
Programmer, C-more HMI or the DV–1000 operator interface. Remember, even though
the Handheld or the DV–1000 are not installed in the base, they still obtain their power
from the system. Also, make sure you obtain any external power requirements, such as the
24VDC power required by the analog modules.
2. Add the current columns starting with CPU slot and put the total in the row labeled "Total
power required"
3. Subtract the row labeled "Total power required" from the row labeled "Available Base
Power". Place the difference in the row labeled "Remaining Power Available".
4. If "Total Power Required" is greater than the power available from the base, the power
budget will be exceeded. It will be unsafe to use this configuration and you will need to
restructure your I/O configuration.
WARNING: It is extremely important to calculate the power budget. If you exceed the power budget, the
system may operate in an unpredictable manner which may result in a risk of personal injury or
equipment damage.
Module Type
D2–09B–1
D2–260
D2–16ND3–2
D2–16NA
D2–16NA
F2–04AD–1
F2–02DA–1
D2–08TA
D2–08TD1
D2–08TR
D2–HPP
Chapter 4: System Design and Configuration
5 VDC (mA)
2600
+ 330
+ 100
+ 100
+ 100
+ 50
+ 40
+ 250
+ 100
+ 250
+ 200
1520
2600–1520 = 1080
DL205 User Manual, 4th Edition, Rev. B
Auxiliary
Power Source
24 VDC Output (mA)
300
+ 0
+ 0
+ 0
+ 80
+ 60
+ 0
+ 0
+ 0
+ 0
140
300 – 140 = 160
4–9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
C
D