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Rockwell Automation Publication 1512A-UM101B-EN-P - December 2021
Appendix D Integrated Protective Maintenance Grounding Device
Figure 86 - Close the IPMG Device from an Open Position (1512A Cabinet with 800 A IPMG)
Opening the IPMG Device from a Closed Position
1. Insert the operating handle and hex shaft, through the hole in the front
of the structure. Place the handle to accommodate at least 180° of
clockwise motion. The hexagon-shaped shaft must mate with the
connection of the IPMG operating shaft.
2. Rotate the operating handle, in one motion, approximately 180°
clockwise until the switch flips into an OPEN position (there is a
significant sound as the IPMG device disengages).
3. Remove the handle.
4. Verify the OPEN position of the IPMG device by viewing the blades
position through the standard viewing window.
5. Verify the position of the indication arrow (
) and adjust if
necessary before operating the isolations switch handle.