22B-D4P0N104 | PowerFlex 40 AC Drive

Disconnecting MOVsTo prevent drive damage, the MOVs connected to ground shall bedisconnected if the drive is installed on an ungrounded distributionsystem where the line-to-ground voltages on any phase could exceed125% of the nominal line-to-line voltage. To disconnect these devices,remove the jumper shown in the Figures 1.1 and 1.2.1. Turn the screw counterclockwise to loosen.2. Pull the jumper completely out of the drive chassis.3. Tighten the screw to keep it in placeThe drive Safety Ground – (PE) must be connected to systemground. Ground impedance must conform to the requirements ofnational and local industrial safety regulations and/or electrical codes.The integrity of all ground connections should be periodically checked.