Kollmorgen AKD Fault Card

Fault
(“F”)
Warning
(“n”)
Message/Warning Cause Remedy Drive
Respons-
e to Fault
F404 Illegal Hall state (111,
000).
Hall sensor returns
invalid Hall state (111,
000); either all Hall
sensors are on or off.
Legal Hall states are
001, 011, 010, 110, 100,
and 101. This fault can
be caused by a broken
connection in any one of
the Hall signals.
Check the feedback wiring;
check all feedback con-
nectors to ensure all pins
are positioned correctly.
Dynamic
braking
F405 BiSS watchdog fault. Bad communication
with the feedback
device.
Check primary feedback
(X10 connection), Biss
only.
Dynamic
braking
F406 BiSS multi cycle fault.
F407 BiSS sensor fault.
F408-
F416
SFD feedback fault. Bad communication
with the SFD device.
Check primary feedback
(X10 connection).If fault
persists, internal feedback
failure. Return to man-
ufacturer for repair.
Dynamic
braking
F417 Broken wire in primary
feedback.
In primary feedback, a
broken wire was detec-
ted (incremental
encoder signal amp-
litude).
Check feedback cable con-
tinuity.
Dynamic
braking
F418 Primary feedback power
supply.
Power supply fault for
primary feedback.
Check primary feedback
(X10 connection).
Dynamic
braking
F419 Encoder init procedure
failed.
Phase find procedure
did not complete suc-
cessfully.
Check encoder wiring,
reduce/balance motor load
prior to phase finding.
Disable
power
stage
F420 FB3 Endat com-
munication fault.
A communication error
was detected with the
EnDat 2.2 device con-
nected to the X9 con-
nector.
Check pinout and FB3 con-
figuration and reconnect
feedback. If problems per-
sist, contact customer sup-
port.
Dynamic
braking
F421 SFD resolver sensor
fault.
Sensor or sensor wiring
failure inside motor.
Try resetting the fault. If it
reappears return motor for
repair.
Dynamic
braking
F423 NV Failure – Extended
Multiturn.
The position saved in
memory is corrupted.
Home axis or disable exten-
ded multiturn. If the fault
persists, send the drive for
repair.
Disable
power
stage
AKD Fault Card | 2 Fault and Warning Messages
Kollmorgen | kdn.kollmorgen.com | November 2019 16

Kollmorgen AKD Specifications

General

Control Modes	Torque, Velocity, Position
Communication Interfaces	EtherCAT, CANopen
Feedback Options	Resolver
Safety	STO (Safe Torque Off), SS1 (Safe Stop 1)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature
Operating Temperature Range	0°C to 55°C
Humidity	5% to 95% non-condensing