Easy Tuning; Single Parameter Tuning - Leadshine EL8-EC Series User Manual

Common issues
Error Cause
Loose load connection
Inertia ratio Measuring distance is too short
identification
failure Belt load

6.3 Easy Tuning

6.3.1 Single Parameter Tuning

Set a mechanical stiffness level and the driver will automatically tune the parameters
accordingly, including inertia measuring and vibration suppression to fulfill responsiveness and
stability needs. At same time, more advanced functions can be applied, for example:
Command pulse filter, low frequency vibration suppression, etc.
Recommended for applications where inertia changes is minute. Single parameter tuning is
more complicated to set up compared to one-click tuning. Use single parameter tuning when
one-click tuning doesn't fulfill the needs.
Control Suitable in position mode or EtherCAT mode (Not applicable in other modes)
mode
 Servo ON (SRV-ON) status
Others
 Set suitable position/torque limit so that motor can run normally
 Use trial run or any external controller to make sure no clash of axes
 External load smaller or 30 times larger than rotor inertia
 Inertia measuring might fail upon changes in load inertia
Load inertia
 Load torque changes drastically
 Mechanical stiffness is too low
 Existence of gear backlash or any other non-linear factors
Load
 Complicated mechanical load structure
 Low speed, no more than 300[r/min].
 Acceleration/deceleration time too long, more than = 600ms
Motion
 Speed > 300r/min, acceleration/deceleration time < 600ms but travelling
time duration < 50ms.
Solution
Check for mechanical failure
Increase measuring distance
Please pre-set an inertia ratio when
using a belt to prevent jolt due to low
inertia.
Recommended application scenarios
Factors affecting single parameter tuning
User manual of EL8-EC***F AC Servo
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