Mazak Alarms

Mazak Alarms and Error Codes

Mazak Alarm 399 MAINTE./ADJUST PARAM. ON

Mazak Alarm 399 MAINTE./ADJUST PARAM. ON Description The maintenance/adjustment parameters are validated. Check and remedy After turning NC power off, turn off the main circuit breaker and then turn it…

Mazak Alarm 398 MAGAZINE COVER OPEN

Mazak Alarm 398 MAGAZINE COVER OPEN Description The magazine cover is open. The machine of the CE specifications has its magazine setup switch remaining set to ON. Check and remedy…

Mazak Alarm 395 CHECK SENSOR MALF. (SEE D199)

Mazak Alarm 395 CHECK SENSOR MALF. (SEE D199) Description The operational check sensors at both ends of the stroke have turned on. After the command has been issued, no sensors did…

Mazak Alarm 381 CONDITION MISSING (SET UP SWITCH)

Mazak Alarm 381 CONDITION MISSING (SET UP SWITCH) Description The cycle start button has been pressed in automatic operation mode with the front door open and the setup key switch…

Mazak Alarm 376 MAIN POWER TURNING OFF MALFUNCTION

Mazak Alarm 376 MAIN POWER TURNING OFF MALFUNCTION Description When the front door of a CE specifications machine was opened with the setup key switch set to “O”, the electromagnetic…

Mazak Alarm 375 MOTOR & SERVO TURNING OFF ERR.

Mazak Alarm 375 MOTOR & SERVO TURNING OFF ERR. Description Since the electromagnetic switch OFF command for the motor and servo system has been issued by activation of the emergency…

Mazak Alarm 366 SHIFTER CONTROLER MALFUNCTION

Mazak Alarm 366 SHIFTER CONTROLER MALFUNCTION Description An alarm signal has been sent from the shifter-use amplifier to the NC unit. Check and remedy After turning NC power off, turn…

Mazak Alarm 365 CARRIER CONTROLER MALFUNCTION

Mazak Alarm 365 CARRIER CONTROLER MALFUNCTION Description An alarm signal has been sent from the carrier-use amplifier to the NC unit. Check and remedy After turning NC power off, turn…

Mazak Alarm 361 TAIL ALARM

Mazak Alarm 361 TAIL ALARM Description The tailstock amplifier has detected an overload or too great an error. The tailstock has moved during spindle rotation. Check and remedy If the…

Mazak Alarm 340 CONDITION No.1 MISSING

Mazak Alarm 340 CONDITION No.1 MISSING Description In a machine having a warming-up option – the warming-up program number is not registered. Check and remedy Register the warming-up program number…

Mazak Alarm 329 CHUCKING SELECTION PROHIBITED

Mazak Alarm 329 CHUCKING SELECTION PROHIBITED Description The inside/outside chucking selection is performed with the chuck not opened. Check and remedy Open the chuck (and remove the workpiece.) Description The…

Mazak Alarm 327 NOT IN ATC START POSITION

Mazak Alarm 327 NOT IN ATC START POSITION Description The condition to perform ATC is not appropriate. The details are described at the left. See D200/D201. Check and remedy 90…

Mazak Alarm 326 T/S QUILL EXT. IMP.

Mazak Alarm 326 T/S QUILL EXT. IMP. Description The tail spindle has advanced with the TOOL EYE arm extended. Check and remedy Retract the TOOL EYE arm. Description The tail…

Mazak Alarm 286 FRONT DOOR EXCEED TIME

Mazak Alarm 286 FRONT DOOR EXCEED TIME Description For machines with an optional automatic door, although a door open/close command is given, the confirmation signal does not turn on within…

Mazak Alarm 282 CHUCK CLAMP EXCEED TIME

Mazak Alarm 282 CHUCK CLAMP EXCEED TIME Description Although a chuck open/close command is given, the confirmation signal does not turn on within a predetermined time. Check and remedy Adjust…

Mazak Alarm 276 ATC CYCLE EXCEED TIME

Mazak Alarm 276 ATC CYCLE EXCEED TIME Description Although 120 seconds have passed since the issuance of the ATC command, the operation complete signal does not turn on. Check and…

Mazak Alarm 267 BALL SCREW X44C LUBRICATION ALARM

Mazak Alarm 267 BALL SCREW X44C LUBRICATION ALARM Description The pressure switch (SP7) for ball screw and C-axis gear lubrication does not turn on or off within a fixed time….

Mazak Alarm 264 THERMAL TRIP X5 (SINGLE BLOCK)

Mazak Alarm 264 THERMAL TRIP X5 (SINGLE BLOCK) Description Thermal relay F13 for the coolant motor has tripped. Thermal relay F14 for the chip conveyor has tripped. Check and remedy…

Mazak Alarm 256 TURRET ROTATION PROHIBITED

Mazak Alarm 256 TURRET ROTATION PROHIBITED Description This alarm display lights when an attempt has been made to turn the milling head or when the conditions were unstable. 1. When the…

Mazak Alarm 253 OVERLOAD DETECTION

Mazak Alarm 253 OVERLOAD DETECTION Description An overload has been detected in a machine having an overload detection option. Check and remedy Check the overload detection level. Or Reduce the…

Mazak Alarm 252 AXIS MOVE MISOPERATION

Mazak Alarm 252 AXIS MOVE MISOPERATION Description An attempt was made to execute an axis movement under the axis movement interdiction. 1. An attempt was made to execute an axis…

Mazak Alarm 251 MILLING MOTOR ROTATION PROHIB.

Mazak Alarm 251 MILLING MOTOR ROTATION PROHIB. Description 1. A milling spindle rotation command was given even though the chuck was not closed. 2. A milling spindle rotation command was…

Mazak Alarm 250 SPINDLE START MISOPERATION

Mazak Alarm  250 SPINDLE START MISOPERATION Description 1. A spindle rotation command was given during mis-chucking. (Chuck sensor provided.) Check and remedy 1. Close the chuck and start operation with the…

Mazak Alarm 231 TOOL EYE POSITION SENSOR MALF.

Mazak Alarm 231 TOOL EYE POSITION SENSOR MALF. Description The TOOL EYE extension or retraction confirmation sensor (SQ7/SQ8) does not turn on, or both of the sensors are ON simultaneously….

Mazak Alarm 220 TURRET POSITION SENSOR MALF.

Mazak Alarm 220 TURRET POSITION SENSOR MALF. Description The milling head positioning /B-axis sensor (encoder) signal has become invalid. Check and remedy The milling head positioning /B-axis sensor (encoder) is…

Mazak Alarm 215 CHUCK SYSTEM MALFUNCTION

Mazak Alarm 215 CHUCK SYSTEM MALFUNCTION Description An erroneous chucking action was detected during chucking operation. Check and remedy The chuck unit has failed to grip the material. OR The…

Mazak Alarm 259 MODE CHANGE IMPOSSIBLE

Mazak Alarm 259 MODE CHANGE IMPOSSIBLE Description The rapid feed mode or zero point return mode switch on the operating panel has been pressed during tool nose measurement with the…

Mazak Alarm 386 ATC STOP

Mazak Alarm 386 ATC STOP Description When the [ATC STOP] menu key in the machine menu was pressed (that is, when the menu was displayed in reverse mode), the axis…

Mazak Alarm 260 SLIDEWAY LUBRICATION ALARM

Mazak Alarm 260 SLIDEWAY LUBRICATION ALARM Description The pressure switch for slideway lubrication (SP67) does not turn on within a fixed time. Check and remedy Check the lubricating grease amount,…

Mazak Alarm 390 TOOL ON INTERFER ALARM

Mazak Alarm 390 TOOL ON INTERFER ALARM Description An attempt has been made to return the tool to a magazine pocket containing another tool. Check and remedy Check the tool…

Mazak Alarm 279 PARTS CATCHER CYCLE EXCEED TIME

Mazak Alarm 279 PARTS CATCHER CYCLE EXCEED TIME Description For the machine with an optional automatic parts catcher, although a parts catcher advance/retract command is given, the advance end confirmation…

Mazak Alarm 313 C/S ERROR (C/S QUILL COMMAND)

Mazak Alarm 313 C/S ERROR (C/S QUILL COMMAND) Description A tailstock advance/retract command was given with the tail spindle advance/retract switch (SA2) not placed at the neutral position. Check and…

Mazak Alarm 320 TOOL UNCLAMP IMP. (M-SP ROT.)

Mazak Alarm 320 TOOL UNCLAMP IMP. (M-SP ROT.) Description A milling head unclamping command has been given during rotation of the milling spindle motor. Check and remedy After the milling…

Mazak Alarm 321 MODE CHANGE IMPOSSIBLE (DURING ATC CYCLE)

Mazak Alarm 321 MODE CHANGE IMPOSSIBLE (DURING ATC CYCLE) Description Mode changing has been attempted during the ATC cycle. Check and remedy The operation mode cannot be changed during ATC….

Mazak Alarm 258 TNo. MISMATCH

Mazak Alarm 258 TNo. MISMATCH Description Since ATC has been aborted by pressing the emergency stop button in the middle of the ATC process, the number of the tool mounted…