BENSHAW RediStart EXEXMVRMX3 Series, User Manual

Page: 166 / 222

Fault Code Table
8.5 Fault Code Table
The following is a list of possible faults that can be generated by the MX starter control.
156
8 - TROUBLESHOOTING & MAINTENANCE
Fault Code Description Detailed Description of Fault / Possible Solutions
F01 UTS Time Limit Expired
Motor did not achieve full speed before the UTS timer (QST 09) expired.
Check motor for jammed or overloaded condition.
Verify that the combined kick time (CFN 12) and acceleration ramp time
(QST 08) is shorter than the UTS timer (QST 09) setting.
Evaluate acceleration ramp settings. The acceleration ramp settings may be too
low to permit the motor to start and achieve full speed. If so, revise acceleration
ramp settings to provide more motor torque during starting.
Evaluate UTS timer setting and, if acceptable, increase UTS timer setting
(QST 09).
F02 Motor OL
Check motor for mechanical failure, jammed, or overloaded condition.
Verify the motor thermal overload parameter settings (QST 03 and PFN 28 to
PFN 35,) and motor service factor setting (QST 02).
Verify that the motor FLA (QST 01) and CT ratio (FUN 03) settings are correct.
If motor OL trip occurs during starting, review acceleration ramp profile settings.
Verify that there is not an input line power quality problem or excessive line
distortion present.
Verify that PF caps, if installed, are ahead of CTs.
Reset overload when content falls below Motor OL Lockout Level (PFN 34).
F03 Slow Speed Timer Increase Slow Speed Timer (CFN 25).
F04 Speed Switch Time Limit Expired
Increase Speed Switch Time (PFN 26).
Accelerate motor faster.
F05 Motor PTC Overtemperature
Verify PTC thermistor specifications.
Allow motor to cool, this will reset motor PTC thermistors.
Check motor cooling fan.
Clean debris off of motor.
Reduce Overload.
Reduce high ambient.
F06 Stator RTD Overtemperature
Verify Stator RTD specifications.
Allow motor to cool.
Check motor cooling fan.
Clean debris off of motor.
Reduce Overload.
Reduce high ambient.
F07 Bearing RTD Overtemperature
Verify Bearing RTD specifications.
Replace bearings.
Reduce load on bearings.
Reduce high ambient.
Reduce high vibrations.
F08 Other RTD Overtemperature
Verify Other RTD specifications
Reduce load.
Reduce high ambient.