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Rockwell Automation Publication 7712-UM001D-EN-P - October 2017
Chapter 3
Start-up Procedure
When the contactor cart is racked to operating position, the MV parts on the
line side, including CPT is default has been chosen, would be connected to the
line side buses of this equipment so that they would be energized by MV. As a
result of energizing CPT, control power would be applied to the LV circuit
connected to it.
The cart must be in the operating position and the earthing switch must be
open.
It is not possible to operate the contactor by the test power supply while the
contactor cart is in operating position. To perform any operation with the
contactor engaged, either MV should be applied on the line side bus of this
equipment so that the MV energized on-cart CPT would power up the control
circuits, or a customer supplied power supply should have been wired to the LV
panel as designed.
Test the Contactor
Contactor must be in the withdrawn/test position
1. Connect the appropriate external power supply (120V or 230V AC) to
the test receptacle in the control panel. Turn the selector switch to the
TEST position.
2. Electrically operate the contactor several times. Inspect the armature
plate to verify that it fully contacts the magnetic cores.
Contactor should close when close command is given. IntelliVAC
module will detect and display fault if a problem exists.
3. Turn the selector switch to the OFF position and disconnect the
external power supply.
Inspect the area around the magnetic cores of the vacuum contactor and
remove any metal filings, if present. This type of debris is attracted to the coil
once it is energized and could prevent the contactor from closing properly.
ATTENTION:
Some control circuit configurations may require control jumpers
to let the contactor close during the test procedure. Do not jumper any
contactor cart position auxiliary contacts. Using jumpers for these contacts
can result in equipment damage or injury to personnel.
Содержание Allen-Bradley 7712
Страница 6: ...6 Rockwell Automation Publication 7712 UM001D EN P October 2017 Table of Contents Notes ...
Страница 10: ...10 Rockwell Automation Publication 7712 UM001D EN P October 2017 Preface Notes ...
Страница 14: ...14 Rockwell Automation Publication 7712 UM001D EN P October 2017 Chapter 1 General Information Notes ...
Страница 24: ...24 Rockwell Automation Publication 7712 UM001D EN P October 2017 Chapter 3 Start up Procedure ...
Страница 25: ...Rockwell Automation Publication 7712 UM001D EN P October 2017 25 Start up Procedure Chapter 3 ...
Страница 26: ...26 Rockwell Automation Publication 7712 UM001D EN P October 2017 Chapter 3 Start up Procedure ...
Страница 36: ...36 Rockwell Automation Publication 7712 UM001D EN P October 2017 Chapter 4 Equipment Operation Notes ...
Страница 58: ...58 Rockwell Automation Publication 7712 UM001D EN P October 2017 Chapter 5 Maintenance Notes ...
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