Rockwell Automation ControlLogix 1756-PA72 Series C Installation Instructions Manual Download Page 1

Installation Instructions

ControlLogix Power Supplies

Catalog Numbers 1756-PA72 Series C, 1756-PB72 
Series C, 1756-PA75 Series B, 1756-PB75 Series B, 
1756-PH75 Series B, 1756-PC75 Series B

About the Power Supplies

ControlLogix power supplies are used with the 1756 chassis to provide 1.2V, 3.3V, 5V, and 
24V DC power for all modules installed in the chassis. The non-redundant power supplies are 
mounted on the left end of the chassis, where they are plugged directly into the backplane.

Topic

Page

Important User Information

2

Environment and Enclosure

3

Safety-related Programmable Electronic Systems

4

North American Hazardous Location Approval

4

European Hazardous Location Approval

5

Before You Begin

5

Install the Power Supply

6

Ground the Power Supply at Protective Earth Ground

8

Connect the Power

10

Remove the Protective Label

11

Activate the Power Supply

12

Determine the Input Power Requirements/Transformer Sizing

12

Status Indicators

14

Specifications

15

Additional Resources

23

Summary of Contents for ControlLogix 1756-PA72 Series C

Page 1: ...ted on the left end of the chassis where they are plugged directly into the backplane Topic Page Important User Information 2 Environment and Enclosure 3 Safety related Programmable Electronic Systems...

Page 2: ...ation Rockwell Automation Inc cannot assume responsibility or liability for actual use based on the examples and diagrams No patent liability is assumed by Rockwell Automation Inc with respect to use...

Page 3: ...imize the spread of flame complying with a flame spread rating of 5VA V2 V1 V0 or equivalent if non metallic The interior of the enclosure must be accessible only by the use of a tool Subsequent secti...

Page 4: ...reux Lorsque plusieurs produits sont combin s dans un syst me le code de temp rature le plus d favorable code de temp rature le plus faible peut tre utilis pour d terminer le code de temp rature globa...

Page 5: ...potentially explosive atmospheres given in Annex II to this Directive Compliance with the Essential Health and Safety Requirements has been assured by compliance with EN 60079 15 and EN 60079 0 WARNI...

Page 6: ...ower supply 1 Align the power supply circuit board with the card guides on the left side of the chassis 2 Guide the extended tab on the power supply circuit board into the notch of the chassis Chassis...

Page 7: ...ControlLogix Power Supplies 7 Publication 1756 IN613A EN P December 2008 3 Slide the power supply in until it is flush with the back of the chassis 4 Fasten the power supply to the chassis 44144 44145...

Page 8: ...und from the chassis to the system earth ground 3 Tighten the nut on the equipment protective earth ground terminal stud to a torque of 1 4 N m 12 lb in Item Description 1 Wiring terminal block 2 Prot...

Page 9: ...ected to the system We recommend that you use a ground bus to reduce the electrical resistance at the connection For more information on grounding the wiring to the ControlLogix chassis refer to the C...

Page 10: ...WARNING If you connect or disconnect wiring while the field side power is on an electrical arc can occur This could cause an explosion in hazardous location installations Be sure that power is removed...

Page 11: ...of the power supply Power Supply Connections Item Description 1 L1 High side of line power AC Power Supplies 2 L2 N Low side of line power 3 a Protective earth ground terminal 3 b Protective earth gr...

Page 12: ...ower supplies given the power they are providing to the modules in the chassis The vertical axis of each graph shows the backplane power consumed by all of the modules in the chassis the horizontal ax...

Page 13: ...vertical axis 3 Follow that value to the right until it intersects the line on the graph 4 Find the associated input power rating consumed by the power supply on the horizontal axis For example if th...

Page 14: ...line power OFF 3 Loosen the screws holding the power supply to the chassis See page 7 for the location of the screws on the power supply 4 Slide the power supply out so that the rear connector is disc...

Page 15: ...r 100VA Input power max 100VA 100 W Output power max 1 75 W 60 C 140 F Power dissipation 85 3 BTU hr Power consumption 25 W 60 C 140 F Hold up time 2 5 cycles 85V AC 50 60 Hz 6 cycles 120V AC 50 60 Hz...

Page 16: ...ions Attribute 1756 PA72 Series C 1756 PA75 Series B Operating temperature IEC 60068 2 1 Test Ad Operating Cold IEC 60068 2 2 Test Bd Operating Dry Heat IEC 60068 2 14 Test Nb Operating Thermal Shock...

Page 17: ...56 PA72 Series C 1756 PA75 Series B UL UL Listed Industrial Control Equipment See UL File E65584 CSA Certified Process Control Equipment See CSA File LR54689C CSA Certified Process Control Equipment f...

Page 18: ...ut voltage nom 24V DC 48V DC 125V DC Input power max 95 W Output power max 75 W 60 C 140 F 2 Power dissipation 68 2 BTU hr Power consumption 20 W 60 C 140 F Hold up time 35 ms 18V DC 3 40 ms 24V DC 40...

Page 19: ...due to short circuit conditions 6 Use this Conductor Category information for planning conductor routing Refer to Industrial Automation Wiring and Grounding Guidelines publication 1770 4 1 1756 PB72...

Page 20: ...ckaged Nonoperating Damp Heat 5 95 noncondensing Vibration IEC 60068 2 6 Test Fc Operating 2 g 10 500 Hz Operating shock IEC 60068 2 27 Test Ea Unpackaged Shock 30 g Nonoperating shock IEC 60068 2 27...

Page 21: ...variation IEC 61000 4 11 IEC 61000 4 29 60 dips for 100 ms on DC supply ports 100 dips for 50 ms on DC supply ports 20 fluctuations for 15 min on DC supply ports 5 s interruptions on DC supply ports 1...

Page 22: ...56 PC75 Series B 1756 PH75 Series B Certifications 1 Certifications 2 1756 PC75 Series B 1756 PH75 Series B UL UL Listed Industrial Control Equipment See UL File E65584 CSA CSA Certified Process Contr...

Page 23: ...ption 1756 A4 1756 A7 1756 AI0 1756 A13 1756 A17 ControlLogix Chassis Installation Instructions publication 1756 IN080 Provides information about installing a ControlLogix chassis and technical specif...

Page 24: ...ou experience a problem within the first 24 hours of installation please review the information that s contained in this manual You can also contact a special Customer Support number for initial help...

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