2 checking drive operation – Rockwell Automation SP500  AC Drive Installation and Operation Manual User Manual

Page 62

Advertising
background image

6-2

SP500 AC Drive Installation and Operation Manual Version 3.1

Step 9. Check that the wire sizes are within terminal specifications and that the

terminals are tightened to the appropriate torque specifications. Refer to
tables 3.2 through 3.6.

Step 10. Check that the user-supplied branch circuit protection is installed and

correctly rated.

Step 11. Check that the incoming AC power is rated correctly.

Step 12. Check the motor installation and length of motor leads.

Step 13. Disconnect any power correction capacitors connected between the drive

and the motor.

Step 14. Check that any motor thermal switch and the drive’s electronic thermal

overload are enabled (parameter F-15 = ON).

Step 15. Check that the rating of the transformer (if used) matches the drive

requirements and is connected for the proper voltage.

Step 16. Verify that a properly-sized ground wire is installed and that a suitable earth

ground is used. Check for and eliminate any grounds between the motor
frame and the motor power leads. Verify that all ground leads are unbroken.

Step 17. Uncouple the motor from any driven machinery to initially start the drive.

6.2

Checking Drive Operation

Use the following procedure to check the operation of the drive:

Step 1. Turn off, lock out, and tag power to the drive. Wait five minutes.

Step 2. Remove the cover and check the DC bus potential with a voltmeter as

described in section 9.1. Verify that the DC bus capacitors are discharged.
Replace the cover.

Step 3. Uncouple the driven equipment from the motor, if possible.

Step 4. Apply power to the drive. SELF should be displayed for approximately 1 to 2

seconds to indicate internal diagnostics are being performed. After 1 to 2
seconds, 0 should be displayed and the LEDs should indicate drive status. If
any fault codes are displayed, refer to chapter 9, Troubleshooting Reference.

Step 5. Check all parameter settings and verify that they are set correctly based on

the application. In most cases, the factory default values are adequate for
this no-load start-up test. Parameters are described in chapter 8.

Step 6. Press the START key. The drive should ramp at the acceleration rate (F-01)

until it reaches the preset minimum speed (F-03).

!

ATTENTION: DC bus capacitors retain hazardous voltages after input
power has been disconnected. After disconnecting input power, wait five
(5) minutes for the DC bus capacitors to discharge and then check the
voltage with a voltmeter to ensure the DC bus capacitors are discharged
before touching any internal components

Advertising