Specifications

ManualsBrandsRockwell Automation ManualsConsumer electronicsSLC 500

2–14

Selecting Your Hardware Components

Publication

1747-6.2

Example

— W

orksheet for Selecting a 1746 Power Supply

If you have a multiple chassis system, make copies of the Power Supply Worksheet

found on page E-1. For a detailed list

of device load currents, refer to the

SLC 500 Modular Chassis and Power Supplies,

Publication Number 1746-2.

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. Also include the power consumption of any peripheral devices that may be connected to the processor

other than a DTAM, HHT, or PIC — the power consumption of these devices is accounted for in the power consumption of the

processor.

Chassis

Number: _______ Chassis Number: _______

slot _______

Catalog

Number

Maximum Currents

5V 24V

Peripheral

Device:

_________

______________

_________ ______________

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 | 2.88A

(70 W

atts maximum)

Required Power Supply for this Chassis: 1746- P4

slot _______

Catalog

Number

Maximum Currents

5V 24V

Peripheral

Device:

_________

______________

_________ ______________

______________

AIC

L511

IV8

OB8

OA16

0.350

0.050

0.135

0.370

0.105

–

– 0.085

0.1900.905

AIC

L514

OW16

NO4I

IO12

0.350

0.170

0.055

0.090

0.105

0.180

0.195

0.070

– 0.085

1.2200.830

    

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

Chassis total power supply loading currents cannot exceed 70 W

atts. If you are not

using a 1746-P4 power supply, proceed to step 3.

Total

Current:

Total current

at 5V

Total current

at 24V

    

Total Power

Total current

at 5V

Total current

at 24V

  



User Current

at 24V

The user current at 24V listed below is for example only. The current required

depends on the application.

  







User Current

at 24V

Consider

future

system expansion when selecting a power supply