121 
instruction  speed  will  lead  to  inaccurate 
identification of inertia ratio. 
③ torque limit too small(P3-28/29) 
value  error  is  too 
large  when 
calculating  the 
inertia   
① The maximum speed limit is too small (P2-17), 
but it is recommended not to be less than 500 rpm. 
Low  instruction  speed  will  lead  to  inaccurate 
identification of inertia ratio. 
②  The  presumed  inertia  trip  is  too  small.  It  is 
suggested that the minimum for P2-15 should no be 
less than 50 (0.5 cycles). If the trip is too small, the 
identification of inertia ratio will be inaccurate. 
③ mechanism friction too large 
④ overshoot 
The  maximum 
speed limit is too 
small;  the  travel 
is  too  small;  the 
friction  of  the 
mechanism is too 
large; the overrun 
occurs 
Driver  internal 
trip  calculation 
error 
①  The  presumed  inertia  trip  is  too  small.  It  is 
suggested that the minimum for P2-15 should no be 
less than 50 (0.5 cycles). If the trip is too small, the 
identification of inertia ratio will be inaccurate. 
Unrestrained 
Vibration  in  the 
Process  of  Inertia 
Identification 
Unhandled vibration occurs 
Unhandled 
vibration occurs 
Driver  is  not 
currently  in  BB 
state 
① Enable have been opened. P5-20 can be set to 0 
first 
②  When  the  driver  alarms,  it  will  appear.  Press 
ESC key to exit the  auto-tuning interface to  see if 
there is an alarm. 
Will  occur  when 
enable  is  turned 
on  or  driver  has 
alarm   
The driver alarms 
in  the  process  of 
inertia 
identification 
Driver  has  alarm,  press  ESC  key  to  exit  the 
auto-tuning  interface,  check  the  alarm  code,  first 
solve the alarm and then make inertia estimation. 
 
 
 
 
Estimate the inertia through XinJeServo software   
1.  Click auto-tuning on the main interface of XinJeServo