AKD Fault Card | 2 Fault and Warning Messages
Fault
(“F”)
Warning
(“n”)
Message/Warning Cause Remedy Drive
Respons-
e to Fault
F308 Voltage exceeds motors
rating.
Drive bus voltage
exceeds the motor’s
defined voltage rating.
Make sure that the motor
fits the driving rating.
Disable
power
stage
F309 Motor I2t load over fault
threshold.
Motor I2t load (IL.MI2T)
has exceeded the fault
threshold
IL.MI2TFTHRESH.
This fault can only be
generated in the case
that the motor protection
mode IL.MIMODE has
been set to 1.
Reduce the load of the
drive e.g. by adjusting
acceleration / deceleration
ramps.
Disable
power
stage
n309 Motor I2t load. reduce
load
Motor I2t load (IL.MI2T)
has exceeded the warn-
ing threshold
IL.MI2TWTHRESH.Th-
is warning can only be
generated in the case
that the motor protection
mode IL.MIMODEhas
been set to 1.
Reduce the load of the
drive by adjusting lower
acceleration / deceleration
ramps.
None
F312 Brake released when it
should be applied.
Brake disengaged unex-
pectedly.
Check cabling and general
functionality.
Controlled
stop
F314 Motor phase loss detec-
ted.
One or multiple motor
lines are not properly
connected.
Check the motor con-
nector/wiring on the AKD.
Disable
power
stage
F401 Failed to set feedback
type.
Feedback is not con-
nected or wrong feed-
back type selected
Check primary feedback
(X10 connection).
Dynamic
braking
F402 Analog signal amplitude
fault.
Analog signal amplitude
is too low or too high.
Applicable to all feed-
back types with sin/cos
lines (including
Resolver, Endat 2.1,
pure Sin/Cos ect.).
Check primary feedback
(X10 connection), resolver
and sine/cos encoder only.
Dynamic
braking
F403 EnDat communication
fault.
General communication
problem with feedback.
Check primary feedback
(X10 connection), EnDat
only. If feedback is linear,
check calibration.
Dynamic
braking
15 Kollmorgen | kdn.kollmorgen.com | November 2019
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