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Rockwell Automation 1336VT 5-300 AMP (2.2-160KW) User Manual

Page 85

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Startup

Chapter 9

9-10

!

ATTENTION: The following steps may cause motor rotation in
an unknown direction. To guard against equipment damage, always
disconnect the motor from the load before proceeding.

Initial Operation

- Motor Connected

Step 21

Reapply power to the drive.

Minimize the possibility of incorrect motor rotation by changing the
following parameters.

C1

C2

SW1

If the chassis mounted Local Programming and Display Panel is installed,
check that SW1 is in the C1 position to enable programming.

Press Pr to enter the programming mode and change:

Parameter 16, minimum frequency, to 0

Parameter 43, dwell frequency, to 0.

Simultaneously press ▲ and ▼ to return to the operating mode.

Step 22

Before starting the drive, select the forward direction of rotation and turn
the Control Panel speed pot fully counterclockwise.

Start

Start the drive and slowly turn the speed pot until the motor begins to turn.
Check the direction of motor rotation, then stop the drive.

If the direction of rotation is correct, go to Step 23.

If the direction of motor rotation is incorrect:

Remove input power, wait until the displays are no longer lit, then
remove the drive cover.

Verify that the bus is fully discharged and that the bus voltage at
terminals +DC and -DC on the power terminal block is zero.

Interchange any two of the three motor leads at TB1 – M1, M2 or M3.

Replace the cover, reapply power to the drive, then repeat Step 22 for
correct motor rotation.