Baldor 29M Installation And Operating Manual page 72

Section 1
General Information
INDICATION
New Base ID Software parameters are not
initialized on newly installed
control board.
Over Current FLT Current Limit parameter set too low. Increase PK Current Limit parameter in the Level 2
ACCEL/DECEL time too short.
Excessive noise on resolver lines.
Electrical noise from external DC
coils.
Electrical noise from external AC
coils.
Excessive load.
Overload Peak output current exceeded 2.5
second rating.
Over Speed Motor exceeded 110% of MAX
Speed parameter value.
MN1230
Table 5-5 Troubleshooting
POSSIBLE CAUSE
Continued
CORRECTIVE ACTION
Press "RESET" key on keypad to clear the fault condition. Reset
parameter values to factory settings. Re-enter the Parameter Block Values
you recorded in the User Settings at the end of this manual. Autotune the
control.
Output Limits block.
Increase ACCEL/DEC parameters in the Level 1
ACCEL/DECEL Rate block.
Check encoder connections.
Separate encoder leads from power wiring.
Cross encoder wires and power leads at 90 .
Electrically isolate encoder from motor.
Install optional Isolated Encoder 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.
Reduce the motor load.
Verify proper sizing of control and motor.
Check PK Current Limit parameter in the Level 2 Output Limits block.
Change Overload parameter In the Level 2 Protection block
from Trip to Foldback.
Check motor for overloading.
Increase ACCEL time.
Reduce motor load.
Verify proper sizing of control and motor.
Check Max Output Speed in the Level 2 Output Limits block.
Increase Speed PROP Gain in the Level 1 Brushless Control block.
Troubleshooting 5-9