ASDA-B2  Chapter 5  Trial Operation and Tuning 
Revision May, 2018     5-11 
 
Tuning Procedure 
Display 
20.  In P4-05, the servo drive cannot display inertia ratio. Please press the MODE Key 
twice to view the value of inertia ratio. If users desire to execute JOG operation again, 
press the MODE Key, and then press the SET Key twice. Observe the panel display 
to see if the load inertia ratio remains at the same value after acceleration and 
deceleration. 
5.5.1 Flowchart of Tuning Procedure 
If the estimation of inertia ratio is 
incorrect, it cannot obtain the best 
performance of tuning.
Resonance can be suppressed 
by P2-23 and P2-24.
New model?
Trial run without load 
is OK.
Exit the control of master.
Use the servo drive to perform trial 
run and estimate the inertia ratio
Manual mode
Semi-auto 
mode
Auto mode
Connect to the master. Pay attention 
to the wiring of CN1. Perform trial run 
by P4-07 and P4-09.
Use the selected gain tuning mode 
to enhance the performance.
OK
Yes
No