39
Eastman
Over a Century of Cutting Expertise
®
Form E-564
Fault
Message/Warning
Cause
Remedy
F303
Runaway
Motor did not follow command val-
ues.
Current command to the motor is
too high for too long. Reduce servo
gains, or reduce command trajectory
aggressiveness.
F304
n304
Motor foldback.
Maximum motor power has been ex-
ceeded; the power has been limited
to protect the motor.
Motion is requiring too much power.
Change move profile to reduce load
onmotor. Check for load jamming
or sticking. Check that current limits
are set.
F305
Brake open circuit.
Motor brake open circuit. Fault
threshold is 200mA.
Check cabling and general function-
ality.
F306
Brake Short circuit.
Motor brake short circuit.
Check cabling and general function-
ality.
F307
Brake closed during
enable.
Motor brake closed unexpectedly.
Check cabling and general function-
ality.
F308
Voltage exceeds motor
rating.
Drive bus voltage exceeds the mo
-
tor’s defined voltage rating.
Make sure that the motor fits the
driving rating.
F309
Motor l2t load.
Motor I2t load (IL.MI2T) has ex-
ceeded the warning threshold
IL.MI2TWTHRESH. Can only be
generated if IL.MIMODE has been
set to 1.
Reduce the load of the drive by
adjusting lower acceleration / decel-
eration ramps.
F312
Brake released when it
should be applied.
Brake disengaged unexpectedly.
Check cabling and general function-
ality.
F401
Failed to set feedback.
Feedback is not connected or wrong
feedback type selected.
Check primary feedback (X10).
F402
Analog signal amplitude
fault.
Analog signal amplitude is too low.
Analog fault (resolver signal ampli-
tude or sin/cos amplitude)
Check primary feedback (X10), re
-
solver and sine/cos encoder only.
F403
EnDat communication.
General communication problem with
feedback.
Check primary feedback (X10),
EnDat only
F404
Hall error.
Hall sensor returns invalid Hall state
(111, 000); either all Hall sensors are
on or off. Can be caused by a broken
connection in any one of the Hall
signals.
Check the feedback wiring; check all
feedback connectors to ensure all
pins are positioned correctly.
F405
BiSS watchdog fault.
Bad communication with the feed-
back device.
Check primary feedback (X10) BiSS
only
F406
BiSS multi-cycle fault.
Bad communication with the feed-
back device.
Check primary feedback (X10) BiSS
only
F407
BiSS sensor fault.
Bad communication with the feed-
back device.
Check primary feedback (X10) BiSS
only
F408 to F416
SFD feedback fault.
Bad communication with the SFD
device.
Check primary feedback (X10).
If fault persists, internal feedback
failure. Return to manufacturer for
refund.