Hapter, Step 9 - check the installation – Rockwell Automation VSM500 Integrated Drive/Motor User Manual

Page 57

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Step 9 - Check the Installation

9-1

C

HAPTER

9

Step 9 - Check the Installation

To ensure safe operation, check the installation with the power off before operating the
unit. When power is first applied, the direction of rotation, operator speed reference,
and operation under load should be tested.

9.1

Checking the Installation with the Power Off

Perform the following checks of the unit installation with the power off:

Step 1. Turn off, lockout, and tag AC input power to the unit.

Step 2. If an input disconnect is installed, make sure it is in the OFF position.

Step 3. Wait five minutes after disconnecting power and verify that the DC bus has

discharged to zero volts. See figure 5.2 for the test points used to measure
DC bus voltage.

Step 4. Check that any interlocks installed around the driven machine are

operational.

Step 5. Check that there is adequate clearance around the unit. Refer to figure 2.2.

Step 6. Check that the wiring to the control signal terminal strip and to the power

terminals is correct (figures 5.2 and 7.1 through 7.14).

Step 7. Check the setup slide switch and the rotary switches are set correctly.

Step 8. Check that user-supplied branch circuit protection is properly installed and

correctly rated.

Step 9. Check that incoming AC power is correctly rated.

Step 10. Check that the rating of the transformer (if used) matches the unit

requirements and that the transformer is connected for the proper voltage.

Step 11. Check that a properly sized ground wire is installed and that a suitable earth

ground is used. Verify that all ground leads are run unbroken.

!

ATTENTION: Only qualified electrical personnel, familiar with the
construction and operation of this equipment and the hazards involved,
should install, adjust, operate, and/or service this equipment. Read and
understand this manual in its entirety before proceeding. Failure to
observe these precautions could result in severe bodily injury or loss of
life.

!

ATTENTION: After disconnecting input power wait five minutes and
check with a voltmeter to insure that DC bus capacitors are discharged.
The voltmeter should read zero volts. Failure to observe these
precautions could result in severe bodily injury or loss of life.

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