M-Series Operator’s Manual 4/9/15 15-3
Error Message Cause & Effect Action
339 Jogging... An axis jog key is pressed and machine is moving
the corresponding axis
340 Limit (#__) cleared A previously tripped limit switch is now in the
“untripped” position
341 Probing Cycle
Finished
A probing cycle ran to completion
342 Waiting for motion to
stop
PC is waiting for the MPU11 to complete motion
343 Waiting for stop
reason reset
PC is waiting for the MPU11 to reset the stop
reason (as part of the PC/MPU11 communications
handshake).
344 Feedrate modified due
to spindle
The effective feedrate has been lowered because
the spindle is spinning slower than the threshold
percentage of the commanded spindle speed. (The
threshold percent is specified in P149.)
345 Waiting for spindle to
get up to speed
Job progress is paused until the actual spindle
speed reaches the threshold percentage of the
commanded spindle speed. (The threshold
percentage is specified in P149.)
346 Waiting for spindle
direction
Job progress is paused until the spindle turns the
commanded direction.
Abnormal stops (faults)
Abnormal stops are detected in the following order: PLC, servo drive, spindle drive, lube, ESTOP. This means that if
both the servo drive and the spindle drive have faulted, the servo drive fault message would appear.
Number
Message Cause & Effect Action
401 PLC failure
detected
MPU11 stopped with PLC failure bit set.
Job cancelled.
Check PLC fibers and PLC logic power.
404 Spindle drive
fault detected
MPU11 stopped with spindle drive fault
bit set. Job cancelled.
Check inverter for fault or reset spindle
contactor OCR, then cycle
EMERGENCY STOP
405 Lubricant level
low
MPU11 stopped with low lube fault bit
set. Current job will finish but nothing
will work after that.
Add lube or check low lube switch
wiring then cycle EMERGENCY STOP
406 Emergency Stop
detected
MPU11 stopped with no fault bits set.
Job cancelled.
Release Estop
407 limit (#__)
tripped
MPU11 stopped with limit switch
tripped. Job cancelled.
Clear limit switch
408 Programmed
action timer
expired
M103 time expired before M104
encountered. Job cancelled.
Find out why timer expired before
specified action was completed.
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