Rockwell-automation 20D PowerFlex 700S and 700H Frame 10...12 Rectifie User Manual download pdf (Page 5)

Publication PFLEX-IN023A-EN-P

Step 1: Remove Power

from the Drive

1. Turn off and lock out input power. Wait five minutes.

2. Verify that there is no voltage at the drive’s input power terminals.

3. Check the DC bus voltage at the Power Terminal Block by measuring

between the +DC and -DC terminals, between the +DC terminal and the

chassis, and between the -DC terminal and the chassis. The voltage must be

zero for all three measurements.

ATTENTION: To avoid an electric shock hazard, verify that the

voltage on the bus capacitors has discharged completely before

servicing. Check the DC bus voltage at the Power Terminal Block by

measuring between the +DC and -DC terminals, between the +DC

terminal and the chassis, and between the -DC terminal and the

chassis. The voltage must be zero for all three measurements.

Remove power before making or breaking cable connections. When

you remove or insert a cable connector with power applied, an

electrical arc may occur. An electrical arc can cause personal injury

or property damage by:

• sending an erroneous signal to your system’s field devices,

causing unintended machine motion

• causing an explosion in a hazardous environment

Electrical arcing causes excessive wear to contacts on both the

module and its mating connector. Worn contacts may create electrical

resistance.

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Rockwell-automation 20D PowerFlex 700S and 700H Frame 10...12 Rectifie User Manual Page 5