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Replacing the hall effect current sensor (hecs) – Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) - ForGe Control (PanelView 550) User Manual

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Rockwell Automation Publication 7000-UM151E-EN-P - January 2013

39

Component Definition and Maintenance Chapter 3

Figure 22 - Capacitor in grounding network

Replacing the Hall Effect Current Sensor (HECS)

1. Isolate and lock out all power to the drive.

2. Note the location of all wires and the orientation of the HECS. For quick

reference when checking the orientation of the HECS, look for the white
arrow.

3. Remove the round bus bar. Remove the M10 hardware and slide the bar

out.

4. Remove the output connector. Note the orientation.
5. Remove the four screws on the base of the Hall Effect sensor and remove

the sensor.

Important:
Torque on capacitor terminals
3.4 Nm (30 lb-in)

Loosen screws to release capacitor

ATTENTION: To prevent electrical shock, disconnect the main power
before working on the drive. Verify that all circuits are voltage-free using
a hot stick or appropriate voltage-measuring device. Failure to do so may
result in injury or death.

IMPORTANT The Hall Effect Current Sensor (HECS) and wires must be in the proper

orientation. Note the position before disassembly.