ASDA-B2  Chapter 5  Trial Operation and Tuning 
Revision May, 2018     5-5 
(4)  When the screen displays: 
 
Warning of negative limit error: 
Please check if any of the digital input DI1 ~ DI9 is set to negative limit (NL) and 
that DI is ON. 
Corrective actions: 
   If not desire to set negative limit (NL) as one of the digital input, make sure no  
digital input is set to negative limit (NL) among DI1 ~ DI9. (That is to say none 
of the parameters, P2-10 ~ P2-17 and P2-36 is set to 22.) 
  If the function of negative limit (NL) is needed and this DI is set as normally 
close (function code: 0x0022), please make sure this DI is always normally 
close. If not, please set this DI as normally open (function code: 0x0122). 
(5)  When the screen displays: 
 
Warning of positive limit error: 
Please check if any of the digital input DI1~DI9 is set positive limit (PL) and that DI 
is ON. 
Corrective actions: 
  If not desire to set positive limit (PL) as one of the digital input, make sure no 
digital input is set to positive limit (PL) among DI1 ~ DI9. (That is to say none 
of the parameters, P2-10 ~ P2-17 and P2-36 is set to 23.) 
  If the function of positive limit (PL) is needed and this DI is set as normally 
close (function code: 0x0023), please make sure this DI is always normally 
close. If not, please set this DI as normally open (function code: 0x0123). 
(6)  When the screen displays: 
 
Warning of over current: 
Corrective actions: 
  Check the connection between the motor and servo drive. 
  Check if the conducting wire is short circuited. 
Exclude short circuit and avoid metal conductors being exposed.