Baldor 29M Installation And Operating Manual page 73

Section 1
General Information
INDICATION
PWR Base FLT Excessive current usage.
Excessive noise on resolver lines.
Electrical noise from external DC
coils.
Electrical noise from external AC
coils.
Excessive load.
Excessive power in DB circuit.
Feedback Resolver failure.
Unknown Fault Fault occurred but cleared before its
source could be identified.
User Fault Text Fault detected by custom software.
5-10 Troubleshooting
Table 5-5 Troubleshooting
POSSIBLE CAUSE
Continued
CORRECTIVE ACTION
Disconnect motor leads from control and retry test. If problem persists,
contact your local Baldor office.
Check resolver connections.
Separate resolver leads from power wiring.
Cross resolver wires and power leads at 90 .
Electrically isolate resolver from motor.
Install optional Isolated resolver Feedback expansion board.
Install reverse biased diodes across all external DC relay coils as shown in
the Opto Output circuit examples of this manual. See Electrical Noise
Considerations in Section 5 of this manual.
Install RC snubbers on all external AC coils. See Electrical Noise
Considerations in Section 5 of this manual.
Correct motor load.
Verify proper sizing of control and motor.
Verify proper Ohm and Watt parameters of DC Injection Braking.
Increase decel time.
Add optional DB resistor.
Check resolver to motor coupling (align or replace if needed).
Verify correct wiring.
Check AC line for high frequency noise.
Check input switch connections and switching noise.
Refer to custom software fault list.
MN1230