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1.3 Gain tuning
1.3.1 Procedure
Here are the steps for basic gain tuning.
Refer to the “Driver operation manual” for details and for tuning methods other than shown below.
●
For LECSA (Pulse input / Positioning)
A. One-touch tuning
During motor driving, push “AUTO” button on the front of the driver for three seconds.
When display panel becomes “ ”, push “AUTO” button again.
⇒
The gain (including filter, etc) is adjusted automatically.
When the error occurs, refer to the “Driver operation manual”.
B. Auto tuning (Mode1) 1)
Do this operation, if you are not satisfied with the result of “One-touch tuning”.
Set parameter No.PA08 “001”. Afterwards, do 1 and 2 alternately.
1. Reduce value of parameter No.PA09 to be less than present value.
2. Operate and ascertain the situation.
⇒
The gain is adjusted automatically.
●
For LECSB (Pulse input), LECSC (CC-Link), LECSS(SSCNETIII)
A. Adaptive filter II
Set parameter No.PB01 “0001” and drive the motor.
⇒
The filter is adjusted automatically.
B. Auto tuning (Mode1)
Do this operation, if you are not satisfied with the result of “Adaptive filter II”.
Set parameter No.PA08 “0001”. Afterwards, do 1 and 2 alternately.
1. Reduce value of parameter No.PA09 to be less than present value.
2. Operate and ascertain the situation.
⇒
The gain is adjusted automatically.
●
For
LECSS-T(SSCNET III/H)
A. Auto tuning (Mode1)
Set parameter No.PA08 “0001”. Afterwards, do 1 and 2 alternately.
1. Reduce value of parameter No.PA09 to be less than present value.
2. Operate and ascertain the situation.
⇒
The gain is adjusted automatically.
B. Robust filter
Do this operation, if you are not satisfied with the result of “Auto tuning”.
Set parameter No.PE41 “0001” and drive the motor.
⇒
The filter is adjusted automatically.
Warning
A mechanical resonance may occur depending on the configuration or the mounting orientation of the
transferred object. Please change the appropriate parameter in the initial setting.
Refer to "The recommended the parameter for each driver" for the parameter.
1) The auto tuning mode 1 may not be performed properly if the following conditions are not satisfied.
・
Time to reach 2,000rpm is the acceleration/deceleration time constant of 5[s] or less.
・
Speed is 150rpm or higher.
・
Load to motor inertia is 100 times or less.
・
The acceleration/deceleration is 10% or more of the rated torque.