Rockwell-automation 20D DriveLogix Controller for PowerFlex 700S Phase Manuel d'utilisateur télécharger pdf (Page 3)

DriveLogix Controller for PowerFlex 700S Phase I Drives 3

Step 1: Removing 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. Measure the DC bus voltage at the DC+ & DC- terminals on the Power

Terminal Block. The voltage must be zero.

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

voltage on the bus capacitors has discharged before performing

any work on the drive. Measure the DC bus voltage at the +DC &

–DC terminals of the Power Terminal Block. The voltage must

be zero.

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 DriveLogix Controller for PowerFlex 700S Phase Manuel d'utilisateur Page 3