Rockwell Automation 1333 Drive, 3/4-5HP, 230-575V Series D - Manual (Page 112)

Preventive Maintenance and
Troubleshooting Common Drive Problems
Appendix B
B-5
Troubleshooting
Eight common problems that may be experienced when operating the
Common Drive Problems
Series D Bulletin 1333 and their solutions are listed in the remaining pages
of this section.
1. The motor will not run.
2. The motor will not run continuously.
3. The motor generates an excessive amount of heat
4. The drive will not reverse in local control.
5. The drive will not ramp-to-stop.
6. The drive will not accelerate to maximum speed.
7. The drive will not decelerate to minimum speed.
8. An input line fuse has blown.
!
ATTENTION: Power must be applied to the drive with the cover
removed to perform certain troubleshooting checks. Voltages on
many components are at incoming line potential or bus voltage. To
avoid electric shock or damage to equipment, do not touch any
drive components with power applied.
!
ATTENTION: Become familiar with the equipment and read
through the wiring, speed selection and adjustment sections before
attempting to perform the startup procedures. Adjustments may be
required to meet specific load characteristics or operator
preference.
Exercise extreme care when performing any task on the drive.
Failure to do so may result in electric shock or equipment damage.
As shown in Figures B-1 and B-2, a DC bus neon light at the top of
the 1333 has been provided to provide visual indication that bus
voltage is present. Bus voltage may be verified by using a
voltmeter and measuring the voltage between +BUS and –BUS on
the Power Terminal Block. Do not attempt to service the drive until
2 minutes after the neon light has extinguished and bus voltage has
discharged to zero volts.