112 
  Related parameter 
P3-18 is the speed configured for closed-loop inching operation, which only takes effect in two inching 
modes, and the rest normal control modes are invalid. 
 
(5) Run the servo system and confirm whether the full closed-loop system operates normally. 
Send instructions through PLC and other upper devices to observe the operation of the servo unit. 
Slowly increase from low speed to target speed and gradually confirm. 
5.9.3 Full closed-loop control parameter 
5.9.3.1 Full closed-loop function switch 
Full closed loop 
control mode switch 
When the parameter is set to 0, the full closed-loop function is closed; when the parameter is set to 
1, the full closed-loop function is opened, and the external encoder position signal is used for control. 
Only when P9-00.0 full closed-loop function is opened, other related functions of P9-00 and P9-01 
can work, otherwise, even the  setting will  be invalid. The  opening of the  full closed-loop function 
requires the servo to be powered on again. 
5.9.3.2 Counting direction and type selection of grating ruler 
Counting 
direction of 
grating ruler 
use the grating ruler 
counting value directly 
Grating ruler counting 
value reversed     
P9-00 shall cooperate with motor rotation direction parameter setting (P0-05) to decide whether to 
change. 
When  the  direction  setting  is  wrong,  when  P9-02  is  not  set  to  0,  the  alarm  E-236  (alarm  of 
excessive deviation between motor and load position) will be output during operation, at  this time, 
shutting  down  the  enable  needs  to  be  powered  on  again;  if  P9-02  is  0,  the  alarm  E-237  (counter 
direction reversed) will be output, and the value will be adjusted by power on again. 
Incremental serial 
communication   
Absolute serial communication 
5.9.3.3 Speed feedback selection and servo pulse output mode in full closed loop control 
Speed feedback selection 
in full closed loop control