Example for selecting a 1746 power supply, Chassis 1 contains: chassis 2 contains – Rockwell Automation 1747-ACNR15 ControlNet Adapter Module User Manual User Manual
Page 95

Publication 1747-UM003A-EN-P
Understanding Your SLC 500/1746 Control System B-3
Example for Selecting a 1746 Power Supply
Select a power supply for chassis 1 and chassis 2 for the control system below.
(The worksheets for this example start on Page B-4.)
Chassis 1 Contains:
Chassis 2 Contains:
?
?
PC
1747-AIC
DH-485 Network
Chassis 1
Chassis 2
Slot Slot
0 1 2
3
0 1 2 3 4 5
6
Table B.1 Chassis 1
Slot
Number
Description
Catalog Number
Power
Supply at 5V
dc (Amps)
Power Supply at
24V dc (Amps)
0
Processor Unit
1747-L524
0.35
0.105
1
ControlNet Scanner
1747-SCNR
0.90
Not Applicable
2
Transistor Output
Module
1746-OB8
0.135
Not Applicable
3
Triac Output Module
1746-OA16
0.37
Not Applicable
Peripheral
device
Isolated Link Coupler
1747-AIC
Not
Applicable
0.085
Total Current:
1.755
0.190
(1)
(1) Power Supply 1746-P1 is sufficient for Chassis #1. The “Internal Current Capacity” for this power supply is 2 Amps at 5V
dc, 0.46 Amps at 24V dc.
Table B.2 Chassis 2
Slot
Number
Description
Catalog Number
Power
Supply at 5V
dc (Amps)
Power Supply at
24V dc (Amps)
0
ControlNet Adapter
1747-ACNR15
0.900
Not Applicable
1
Input Module
1746-IA16
0.085
Not Applicable
2
Input Module
1746-IA16
0.085
Not Applicable
3
Relay Output Modules
1746-OB32
0.452
Not Applicable
4
Relay Output Modules
1746-OB32
0.452
Not Applicable
5
Relay Output Modules
1746-OB32
0.452
Not Applicable
6
Combination Module
1746-IO12
0.09
0.07
Total Current:
2.616
0.07
(1)
(1) Power Supply 1746-P2 is sufficient for Chassis #2. The “Internal Current Capacity” for this power supply is 5 Amps at 5V dc,
0.96 Amps at 24V dc.