Blank worksheet – Rockwell Automation 1747-L5xx SLC 500 Modular Hardware Style User Manual User Manual

Page 230

Publication 1747-UM011G-EN-P - June 2008

230

Power Supply Worksheet

Blank Worksheet

Procedure

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. Also

include the power consumption of any peripheral devices that may be connected to the processor other than a 1747-DTAM or 1747-PIC interface-the

power consumption of these devices is accounted for in the power consumption of the processor.

Chassis Number

Maximum Currents

Chassis Number

Maximum Currents

Slot Number

Cat. No.

at 5V dc

at 24V dc

Slot Number

Cat. No.

at 5V dc

at 24V dc

Slot

Peripheral Device

2.Add the loading currents of all the system

devices at 5 and 24V dc to determine the
Total Current

2.Add the loading currents of all the system

devices at 5 and 24V dc to determine the
Total Current

3.For 1746-P4 power supplies, calculate the total power consumption of all system devices. If you are not using a 1746-P4 power supply, go to step 4.

Current

Multiply by = Watts

Current

Multiply
by

= Watts

Total Current at 5V dc

Total Current

at 24V dc

24V

Total Current

at 24V dc

24V

User Current

at 24V dc

24V

User Current

at 24V dc

24V

Add the Watts values to determine Total Power

(cannot exceed 70 Watts)

Add the Watts values to determine Total Power

(cannot exceed 70 Watts)

4.Choose the power supply from the list of catalog numbers shown below. Compare the Total Current required for the chassis with the Internal Current

capacity of the power supplies. Be sure that the Total Current consumption for the chassis is less than the Internal Current Capacity for the power

supply, for both 5V and 24V loads.

Cat. No.

Internal Current
Capacity

Cat. No.

Internal Current
Capacity

at 5V dc

at 24V dc

at 5V dc

at 24V dc

1746-P1

2.0A

0.46A

1746-P1

2.0A

0.46A

1746-P2

5.0A

0.96A

1746-P2

5.0A

0.96A

1746-P3

3.6A

0.87A

1746-P3

3.6A

0.87A

1746-P4 (see step 3)

10.0A

2.88A

1746-P4 (see step 3)

10.0A

2.88A

1746-P5

5.0A

0.96A

1746-P5

5.0A

0.96A

1746-P6

5.0A

0.96A

1746-P6

5.0A

0.96A

1746-P7 (

See

page 37 for current

capacity.)

12V Input

2.0A

0.46A

1746-P7 (

See

page 37 for current

capacity.)

12V Input

2.0A

0.46A

24V Input

3.6A

0.87A

24V Input

3.6A

0.87A

Required Power Supply