Rockwell Automation 1747-ACNR15 ControlNet Adapter Module User Manual User Manual
Page 96
Publication 1747-UM003A-EN-P
B-4 Understanding Your SLC 500/1746 Control System
Example - Worksheet for Selecting a 1746 Power Supply
0.190
1.755
______________
______________
______________
______________
______________
______________
______________
______________
______________
slot _______
slot _______
slot _______
slot _______
slot _______
slot _______
slot _______
slot _______
Peripheral
Device
_________
_________
_________
_________
_________
_________
_________
_________
_________
______________
______________
______________
______________
______________
______________
______________
______________
______________
0
1
2
3
4
5
6
IA16
IA16
OB32
OB32
OB32
IO12
0.900
0.085
0.085
0.452
0.452
0.452
0.090
L524
SCNR
OB8
OA16
AIC
0.105
NA
NA
NA
0.190
0.350
0.900
0.135
0.370
NA
Procedure
Required Power Supply for this Chassis:
1746-
P1
1. For each slot of the chassis that contains a module, list the slot number, the catalog number of the module, and its 5V and 24V
maximum currents.
Chassis Number: _______
Chassis Number: _______
Catalog
Number
Maximum Currents
5V 24V
2. Add the power supply loading currents of
all the system devices ( at 5V and 24V).
___________
3. Compare the Total Current required for the chassis with the Internal Current Capacity of the power supplies.
To select the proper power supply for your chassis, make sure that the power supply loading current for the chassis is
less than the
internal current capacity for the power supply, for both 5V and 24V loads.
Internal Current Capacity
5V
24V
Catalog Number 1746-P1
2.0A
|
0.46A
Catalog Number 1746-P2
5.0A
|
0.96A
Catalog Number 1746-P3
3.6A
|
0.87A
Catalog Number 1746-P4
10.0A
5.0A
5.0A
2.0A
(12V dc input)
3.6A
(24V dc input)
|
2.88A
0.96A
0.96A
0.46A (12V dc input)
0.87A (24V dc input)
(70W maximum)
Required Power Supply for this Chassis:
1746-
P2
slot _______
slot _______
slot _______
slot _______
slot _______
slot _______
slot _______
slot _______
Peripheral
Device
Catalog
Number
Maximum Currents
5V 24V
_________
_________
_________
_________
_________
_________
_________
_________
0
1
2
3
Total Power
Total Current:
When using the 1746-P4 power supply, use the formula below to calculate
total power consumption of all the system devices (at 5V and 24V). Note that
the 1746-P4 total power supply loading currents cannot exceed 70 Watts. If
you are not using a 1746-P4 power supply, proceed to step 3.
Total Current:
Total current
@ 5V
Total current
@ 24V
Total Power
Total current
@ 5V
Total current
@ 24V
User Current
@ 24V
The user current @ 24V listed below is for example only. The current
required depends on the application.
User Current
@ 24V
24V) = W
+
24V)
x
5V)
x
x 5V) +
x24V)
+ (
+
x
x 24V) = W
NA
NA
NA
NA
NA
NA
0.070
0.070
2.516
___________
_ACNR15_
Catalog Number 1746-P5
Catalog Number 1746-P6
Catalog Number 1746-P7
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