M-Series Operator’s Manual 4/9/15 15-7
Number
Message Cause & Effect Action
444 _ axis
overtemperature
detected
Drive overtemp sensor tripped. No
motor power.
The drive is being run at over capacity
or the cooling fan is either not
functioning or its air flow is blocked.
445 _ axis
overcurrent
detected
Overcurrent detected on an axis.
No motor power.
Try to jog the axis. The drive will
reset the current limit and try to move
the motor. If the error comes back,
check for a short in the motor output.
446 _ axis servo
drive data input
failure
Communication Checksum error.
No motor power.
Check fiber optic cables. Verify
continuity between drive chassis,
ground strip and Earth ground.
447 _ axis (#) bad
index pulse
detected
Noise picked up by encoder cable or
misaligned encoder. No motor power.
Remove noise or align the encoder.
449 Manual
movement
detected in
restricted area
Unexpected movement of manual axis
detected when Z axis summing is
active.
Physically lock the Z axis manual
quill.
450 Voltage brake
applied
Overvoltage condition was detected.
Electronic braking was applied by
offloading excess voltage to dropping
resistors.
Usually this error condition is
innocuous even if this message occurs
every once in a while in a job.
However, if this message occurs in a
continuous stream, contact your dealer.
451 Current brake
applied
Overcurrent spike was detected on the
drive.
Usually this error condition is
innocuous even if this message occurs
every once in a while in a job.
However, if this message occurs too
often, it may mean you need a higher
current drive. But, if this message
appears in a continuous stream,
something is seriously wrong, and you
should hit E-Stop to cut power to the
drive and then contact your dealer.
452 PC Receive
Data Error
A fatal communication error occurred
between the MPU and PC. The error
was detected on the PC side.
Restart the software to clear the error.
If this error occurs often there may be
an issue with the network
configuration or the Ethernet cable.
453 CPU Receive
Data Error
A fatal communication error occurred
between the MPU and PC. The error
was detected on the MPU11 side
Restart the software to clear the error.
If this error occurs often there may be
an issue with the network
configuration or the Ethernet cable.
453 Jogging while
probe detected
The probe was in the tripped state while
a jog key was pressed.
454 axis scale
encoder
differential error
An error condition was detected in the
differential signal levels for this axis
scale encoder. May indicate a loose or
severed encoder cable or a bad encoder.
This will stop all motion and cancel the
job.
Reconnect/replace scale encoder or
scale encoder cable.
455 axis encoder
quadrature error
The axis encoder skipped a transition
state on its count-up/count-down
sequence. May indicate a bad encoder
or a loose or severed encoder cable.
This will stop all motion and cancel the
job.
Reconnect/replace encoder or encoder
cable.
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