10.4 Fault and Warning Messages
When a fault occurs, the AKD-C fault relay is opened, the output stage of the connected
AKD-N are switched off (motors lose all torque), or the load is dynamically braked. The spe-
cific behavior depends on the type of fault. The LED display shows the number of the fault
that occurred. If a warning is issued prior to the fault, the warning is shown on the LED and
has the same number as the associated fault. Warnings do not trip the power stages of the
connected AKD-N or fault relay output.
AKD fault codes or warning codes are displayed con-
stantly if present. Fault messages are coded with "F",
warnings are coded with "n".
The LED displays the fault or warning number as fol-
lows: F-1-0-1-[break] or n-1-0-1-[break]. The highest pri-
ority fault is displayed. Multiple faults may be present
when a fault condition is occurring. Check the AKD
WorkBench Fault Screen or read the status of
DRV.FAULTS through the controller or HMI for the
entire list of faults.
Eliminate errors and faults in compliance with work safety rules. Troubleshooting only by
qualified and trained staff.
More information about fault messages, causes, remedy and clearing faults can be found in
the WorkBench online help.
Fault
Message/Warning
F0
Reserved.
F101
Firmware type mismatch.
n101
The FPGA is a laboratory FPGA.
F102
Resident firmware failed.
n102
Operational FPGA is not a default FPGA.
F103
Resident FPGA failed.
F104
Operational FPGA failed.
F105
Non-volatile memory stamp invalid.
F106
Non-volatile memory data.
F125, n125
Fieldbus synchronization frames lost.
F136
Firmware and FPGA versions are not compatible .
F201
Internal RAM failed.
F202
External RAM failed.
F203
Code integrity failed.
F204 to F232 EEPROM failure detected.
F234 to F237
n234 to n237
Temperature sensor high.
F240 to F243
n240 to n243
Temperature sensor low.
F501, n501
Bus over voltage.
F503, n503
Bus capacitor overload.
F519
Regen short circuit.
F521, n521
Regen over power.
F523
Bus over voltage FPGA.
F531
Power stage fault.
F536
Standby power supply fault.
AKD-C Installation | 10 Setup
Kollmorgen | kdn.kollmorgen.com | February 2018
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