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Publication 1747-SG001D-EN-P — January 2009
Power Supply
Selection Example
Select a power supply for chassis 1 and chassis 2 in the control system below. For a
detailed list of device load currents, see the next section.
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?
1747-AIC
1747-AIC
1747-UIC
Chassis 1
Chassis 2
Personal
Computer
DH-485 Network
Slot
Numbers
Description
Cat. No.
Backplane Current
at 24V dc
0
Processor Unit
1747-L514
0.105 A
1
Input Module
1747-IV8
0.000 A
2
Transistor Output Module
1746-OB8
0.000 A
3
Triac Output Modules
1746-OA16
0.000 A
Peripheral Device
Isolated Link Coupler
1747-AIC
0.085 A
Total Current
0.190 A
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Chassis 1
Slot 0 1 2 3
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Slot
Chassis 2
0
3
1 2
4 5 6
Power supply 1746-P1 is sufficient for Chassis #1. The internal current capacity for
1746-P1 is 2 A at 5V dc and 0.46 A at 24V dc.
Slot
Numbers
Description
Cat. No.
Backplane Current
at 24V dc
0
Processor Unit
1747-L514
0.105 A
1
Output Module
1747-OW16
0.180 A
2
Combination Module
1746-IO12
0.070 A
3, 4, 5, 6
Analog Output Modules
1746-NO4I
0.780 A (4 x 0.195)
Peripheral Device
Isolated Link Coupler
1747-AIC
0.085 A
Peripheral Device
USB to DH-485 Interface
1747-UIC
N/A
Total Current
1.220 A
Power Supply 1746-P4 is sufficient for Chassis #2. The internal current capacity for
this power supply is 10 A at 5V dc and 2.88 A at 24V dc; not to exceed 70 Watts.
If you have a multiple chassis system, make copies of the blank Power Supply
Worksheet provided at the end of this guide. The next page provides an example
worksheet for the system above.
www.aotewell.com
www.fa-market.com
AoteWell International.inc
Tel: +852-6563-2160