Rockwell Automation Publication 2198-UM004A-EN-P - October 2019 181
Tuning Chapter 9
Tuning via Tuning Mode 1
and Tuning Mode 2
Apart from the autotuning function described earlier, there are two other tuning
modes provided to fine-tune the system.
Tuning Mode Process
See Figure 75 for an overview of the tuning mode process.
Table 68 - Faults Related to Autotuning
Fault Code Fault Name Possible Causes Possible Solutions
E 08A Autotuning command error The external source command was not issued. Check the external source command.
Cable connection error. Check the cable connection.
Position 1 and 2 were the same when command was
issued.
Reconfigure position 1 and 2.
E 08B Inertia estimation error Acceleration/deceleration time was too long. Verify that the acceleration/deceleration time for motor to start from
0…3000 rpm is within 1.5 sec.
Speed tis oo slow. The recommended speed setting is 500 rpm. The lowest possible speed
setting is 200 rpm.
Inertia mismatch. Verify that load inertia is not more than 50 times the motor inertia.
Inertia variation is too vigorous. Resize the system requirements.
E 08C Dwell time too short Dwell time too short. Setting the dwell time is required. Increase the dwell time to more than
1 second.
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