Baldor 29M Installation And Operating Manual page 71

Section 1
General Information
INDICATION
Motor has wrong Input common mode voltage may
response to be excessive.
Speed Command
Motor Will Not Not enough starting torque.
Start Start
Motor overloaded.
Control not in local mode of
operation.
Incorrect Command Select
parameter.
Incorrect speed command.
Motor Will Not Max Output Speed parameter set
Reach Maximum too low.
Speed Speed
Motor overloaded.
Improper speed command.
Speed potentiometer failure.
Motor Will Not MIN Output Speed parameter value
Stop Rotation set too high.
Improper speed command.
Speed potentiometer failure.
5-8 Troubleshooting
Table 5-5 Troubleshooting
POSSIBLE CAUSE
Continued
CORRECTIVE ACTION
Connect control input source common to control common to minimize
common mode voltage. Maximum common mode voltage at terminals
J1A-4 and J1A-5 is 15VDC referenced to chassis common.
Increase Current Limit setting.
Check for proper motor loading.
Check couplings for binding.
Verify proper sizing of control and motor.
Place control in local mode.
Change Command Select parameter to match wiring at J1A and J1B.
Verify control is receiving proper command signal at J1A and J1B.
Adjust MAX Output Speed parameter value.
Check for mechanical overload. If unloaded motor shaft does not rotate
freely, check motor bearings.
Verify control is receiving proper command signal at input terminals.
Verify control is set to proper operating mode to receive speed command.
Replace potentiometer.
Reduce MIN Output Speed parameter value.
Verify control is receiving proper command signal at input terminals.
Verify control is set to receive speed command.
Replace potentiometer.
MN1230