Rockwell Automation 8510 AC Spindle Drive System User Manual - Manual (Page 115)

11 Chapter
11-111
Diagnostics/Troubleshooting
Chapter Objectives The purpose of this chapter is to assist you in determining the cause of a
drive fault or improper drive operation and to define possible corrective
actions. Possible corrective actions include:
n Correcting programming or wiring errors
n Replacing blown fuses
n Replacing subassembly modules that have malfunctioned
n Replacing the complete drive
Introduction The drive performs a number of diagnostic tests at different times during
system operation. The different classes of tests include the following:
n Power On Tests - when AC power is applied, all logic level functionality
is checked and the data tables are tested to verify data integrity.
n Drive Enable Tests - when the Drive Enable input is applied, the DC bus
is energized and the power section is checked for correct operation.
n Normal Operation Tests - various data integrity, control system
functionality, and power section tests are performed on a continuous or
periodic basis during normal drive operation.
!
ATTENTION: Power must be applied to the system to perform
many of the checks specified in this chapter. Some voltages
present are at incoming line potential. To avoid injury to person-
nel and/or damage to equipment, only qualified service person-
nel should perform the troubleshooting procedures provided.
Thoroughly read and understand any procedure before begin-
ning.
The drive provides two discrete digital outputs to indicate fault conditions;
Soft Fault and Hard Fault.
The Soft Fault output will be turned Off as a result of motor/drive overtem-
perature, or improper command sequences that can not be acted upon by
the drive. During a soft fault condition, the drive will continue to operate
normally. Refer to Chapter 7 for further fault output information.
The Hard Fault output will be turned Off whenever a drive fault condition
occurs that will prevent the drive from properly controlling the motor.
Refer to Chapter 7 for further fault output information.
In either case, the 8510 display will show a short text message that
describes the fault. In addition, the drive can display the last eight faults
that have occurred.