Справочник Пользователя для Mitsubishi Electronics QD75MH2

 
 

 

15 - 34 

MELSEC-Q

 

15   TROUBLESHOOTING 

 

 
 

Classification 

of errors 

Error 
code 

Error name 

Error 

Operation status at error occurrence 

 

995 

Home position return 
(OPR) torque limit 
value error 

• The set range of the home position 

return (OPR) detailed parameter " 
Home position return (OPR) torque 
limit value" is outside the setting 
range. 

• The home position return (OPR) 

detailed parameter "Home position 
return (OPR) torque limit value" has 
exceeded the detailed parameter 1 
"Torque limit setting value". 

 
 
 
 
 
 
 

997 

Speed designation 
during home position 
(OP) shift error 

The set range of the home position 
return (OPR) detailed parameter 
"Speed designation during home 
position (OP) shift" is outside the 
setting range. 

 
 
 
 

Parameter 

setting range 

errors 

998 

Operation setting for 
incompletion of OPR 
setting error 

The set range of the home position 
return (OPR) detailed parameter 
"Operation setting for incompletion of 
OPR setting" is outside the setting 
range. 

The QD75 READY signal (X0) is not 
turned ON. 

 

1201 

Home position return 
(OPR) data incorrect 

The backup data for absolute position 
restoration is illegal. 

 
 

1203  Encoder error 1 

The change amount of the encoder 
current value during operation is 
shown below. 
"Change amount of the encoder 
current value/ 1.7 [ms] > Motor 180° " 
Check any time (both servo ON/OFF) 
after the servo amplifier is turned ON. 

 
 
 
 
 
 
 

Encoder 

errors 

1204  Encoder error 2 

The following equation is established 
during operation. 
“Encoder current value (encoder raw 
data) [PLS]   Feedback current value 
(data inside servo amplifier) [PLS] 
(number of encoder significant bits)” 
Check any time (both servo ON/OFF) 
after the servo amplifier is turned ON. 

Continue the operation.