No. Display message Description of display messages Corrective action
20 U-dEF User parameter defaults Displayed when the Up, Down, and Stop buttons are pressed
simultaneously.
• Press the Off button to proceed.
22 FAn-F Cooling fan fault Check and if necessary, replace the internal cooling fan.
23 0–hEAt Ambient temperature too high The measured temperature around the drive is above the operating
limit.
• Ensure that the drive internal cooling fan operates.
• Ensure that the required space around the drive is observed,
and that the cooling airflow path is not restricted.
• Increase the cooling airflow to the drive.
• Reduce the load on the motor or drive.
24 0–tor9 Over-current error Current monitoring function has detected that the current levels are
above the normal operating condition for the application.
• Check that mechanical load has not changed and that the load
is not jammed or stalled.
• For pump applications, check for potential pump blockage.
25 U-tor9 Under-current error Current monitoring function has detected that the current levels are
below the normal operating condition for the application.
• Check for mechanical breakages causing loss of load.
• Check that the motor has not become disconnected from the
drive.
26 Out-F Drive output fault If the fault remains, then contact your sales and service
representative.
40 AtF–01 Autotune failed Measured motor stator resistance varies between phases.
• Ensure that the motor is correctly connected and free from
faults.
• Check the windings for correct resistance and balance.
41 AtF–02 Autotune failed Measured motor stator resistance is too large.
• Ensure that the motor is correctly connected and free from
faults.
• Check that the power rating corresponds to the power rating of
the connected drive.
42 AtF–03 Autotune failed Measured motor inductance is too low.
• Ensure that the motor is correctly connected and free from
faults.
43 AtF–04 Autotune failed Measured motor inductance is too large.
• Ensure that the motor is correctly connected and free from
faults.
• Check that the power rating corresponds to the power rating of
the connected drive.
44 AtF–05 Autotune failed Measured motor parameters are not convergent.
• Ensure that the motor is correctly connected and free from
faults.
• Check that the power rating corresponds to the power rating of
the connected drive.
50 Sc-F01 Modbus communication error
detected
A valid Modbus telegram has not been received within the
watchdog time limit that is set in P5-05:Comms loss timeout.
• Check that the network master or PLC still operates.
• Check the connection cables.
• Increase the value of P5-05:Comms loss timeout to a suitable
level.
Troubleshooting
SRC 311 - SmartRun
™
Installation, Operation, and Maintenance Manual 49
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