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Rockwell Automation Publication 7712-UM001D-EN-P - October 2017
Appendix D
Mechanical Interlock for 7712 and PowerFlex 7000 Drive
Transfer Block
• Standard Transfer Block located inside drive cabinet.
• All 5 KC Keys need to be placed in the transfer block to release KA and
KB
Connections
Motor Connection from 7791
Limited to one cable per phase.
Motor Connection from 7712
Limited to one cable per phase.
Interlock Operation
Sequence (One Motor)
Initial Condition
• All doors closed
• Bypass, Drive Input, Drive Output contactors in open and the cart
withdrawn.
• Bypass earth switch closed
• KC and KD keys in earth switch
• KA key in the Drive Input cabinet (in transfer block)
• KB key in Drive Output cabinet (in transfer block)
• KC keys (4) in transfer block, one in earth switch in Bypass cabinet
To Run Drive
• Open earth switch, lock open with KC
• Place all KC keys in transfer block
• Take KA and KB keys and place in Drive Input and Drive Output doors
• Turn keys to unlock carts
• Rack-in Drive Input and Drive Output carts.
• Run drive
Summary of Contents for Allen-Bradley 7712
Page 6: ...6 Rockwell Automation Publication 7712 UM001D EN P October 2017 Table of Contents Notes ...
Page 10: ...10 Rockwell Automation Publication 7712 UM001D EN P October 2017 Preface Notes ...
Page 24: ...24 Rockwell Automation Publication 7712 UM001D EN P October 2017 Chapter 3 Start up Procedure ...
Page 25: ...Rockwell Automation Publication 7712 UM001D EN P October 2017 25 Start up Procedure Chapter 3 ...
Page 26: ...26 Rockwell Automation Publication 7712 UM001D EN P October 2017 Chapter 3 Start up Procedure ...
Page 58: ...58 Rockwell Automation Publication 7712 UM001D EN P October 2017 Chapter 5 Maintenance Notes ...
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