Mazak Alarm 395 CHECK SENSOR MALF. (SEE D199)
The operational check sensors at both ends of the stroke have turned on.
After the command has been issued, no sensors did not turn on within the required time.
Check and remedy
The positions of the operational check sensors or watchdogs are not correct or the sensors themselves are malfunctioning.
Confirm the value of D199 on the DIAGNOSIS display and examine the sensor causing the alarm.
|The X470 limit switch at the ATC side of the shifter has not turned on 20 seconds after the Y4F0 command for moving the shifter to the ATC side has been issued.
The X471 limit switch at the magazine side of the shifter has not turned on 20 seconds after the Y4F1 command for moving the shifter to the magazine side has been issued.
|The X472 limit switch at the extending side of the shifter has not turned on 20 seconds after the Y4F2 command for extending the shifter has been issued.
The X473 limit switch at the retracting side of the shifter has not turned on 20 seconds after the Y4F3 command for retracting the shifter has been issued.
|The chuck-clamping pressure switch (X442) and the chuckunclamping pressure switch (X443) are both on.
|The top door open end sensor switch (X14) and closed end sensor switch (X15) of the machine of the GL specifications are both on.