Troubleshooting 8-7MN792

Test Points The following test points are located on the control board and can be accessed through the Technology Option
housing. When used with a meter, they will provide valuable information in the event of a fault. Contact Baldor
for more information.
Technology Box
Option
IF
IA
0V
VA
PEEK
Table 8-5
Test
Point Description
IF Field current feedback 0.0V = 0% 4.0V =100% (mean voltage),
value of FIELD I FBK diagnostic, Tag No. 300
IA Armature current feedback ± 1.1V ≡ ±100% (mean current),
value of CURRENT FEEDBACK diagnostic, Tag No. 298
VA Armature volts feedback ±10V ≡ ±100% calculated VA (mean voltage),
value of TERMINAL VOLTS diagnostic, Tag No. 57
0V 0V
PEEK PEEK software (factory use only)
Maintenance The Baldor control requires very little maintenance, if any, and should provide years of trouble free operation
when installed and applied correctly. Occasional visual inspection and cleaning should be considered to ensure
tight wiring connections and to remove dust, dirt, or foreign debris which can reduce heat dissipation.
Before attempting to service this equipment, all input power must be removed from the control to avoid the
possibility of electrical shock. The servicing of this equipment should be handled by a qualified electrical service
technician experienced in the area of high power electronics. Electrical shock hazards are present inside this
control.
Repair Only qualified personnel should attempt to repair or replace parts. Isolate the control from all sources of
electrical power before service is perfomed.
Save Your Data
The Control retains saved settings during power–down. You can download and upload these settings to a new
or replacement control, if necessary. Data should be copied when the parameters were changed. You may
attempt the back–up of your application data now, refer to “Copying an Application” in Section 7. If successful,
the data can be restored to the new control. This information will be helpful when you contact Baldor for help.
Control Model number,
Voltage rating and
hp rating. These can be obtained from the motor nameplate.