Справочник Пользователя для Mitsubishi Electronics QD75MH2

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15 - 2 
MELSEC-Q
 
15   TROUBLESHOOTING 
 
15.1 Error and warning details 
[1]   Errors  
 
 Types of errors 
 
Errors detected by the QD75MH include parameter setting range errors, errors at 
the operation start or during operation and errors detected by servo amplifier. 
 
(1)  Errors detected by the QD75MH include parameter setting range errors 
The parameters are checked when the power is turned ON and at the rising 
edge (OFF   ON) of the PLC READY signal [Y0]. An error will occur if there is 
a mistake in the parameter setting details at that time.  
When this kind of error occurs, the QD75 READY signal does not turn ON.  
To cancel this kind of error, set the correct value in the parameter for which 
the error occurred, and then turn ON the PLC READY signal [Y0]. 
 
POINT 
 
Execute the re-setup of the parameter after you execute the initialization (refer to 
the Section 13.2) of the parameter when the error (error code: 900 to 998) occurs in 
many and QD75MH doesn't start. 
 
(2)  Errors at the operation start or during operation (QD75MH detection errors) 
These are errors that occur at the operation start or during operation when the 
positioning control, JOG operation, or inching operation is used. If an axis 
error occurs during interpolation operation, the error No. will be stored in both 
the reference axis and the interpolation axis. 
Note that, in the following cases (a) and (b), the axis error No. will be stored 
only in the reference axis during analysis of the positioning data set in each 
point of the positioning start data table. 
   (a) When the interpolation axis is BUSY. 
   (b) When the error occurred in positioning data or parameters unrelated to 
interpolation control. 
 
If the error occurred at the simultaneous start of a positioning operation, the 
axis error storage details will differ depending on whether the error occurred 
before or after the simultaneous start. 
 If the error occurred before the simultaneous start (illegal axis No., other axis 
BUSY, etc.), an "error before simultaneous start" will occur. 
 If the error occurred after the simultaneous start (positioning data error, 
software stroke limit error, etc.), an error code corresponding to the axis in 
which the error occurred will be stored.  Because a simultaneous start cannot 
be carried out due to this, a "simultaneous start not possible error" error code 
will be stored in all axes in which an error has not occurred. 
The axis operation status will be displayed as "error occurring" for axes in 
which an error occurred.  
If an error occurs during operation, any moving axes will deceleration stop, 
and their operation status will be displayed as "error occurring". 
All axes will decelerate to a stop during interpolation operations, even if the 
error occurs in only one axis. 
 
(3)  Servo amplifier detection errors 
These are errors that occur at the hardware error such as servo amplifier and 
servomotor or the servo parameter error. 
Servo is turned off at the error occurrence, and axis stop.  If you remove an 
error factor, reset the servo amplifier.