Help with Zero encoder/controller errors

[mcf12]

I'm struggling with these errors and can't fight thru. Anything anyone recognizes? Suggestions? Thx!!


My current plan is to check all my sevcon and motor wiring, but I'm wondering if I should get a new encoder?
Do you know how to source? Other thoughts?
ZERO MBB> errorlogdump
*****************************************************************
* Error Log
*****************************************************************
0x00000400-000005FF, Num: 33, WP: 0x000005E2, RP: 0x000005E3
*****************************************************************
Printing 33 of 33 log entries..
Entry Time of Log Event Conditions
+--------+----------------------+--------------------------+----------------------------------
00001 12/27/2023 12:27:20 SEVCON CAN EMCY Frame Error Code: 0x5000, Error Reg: 0x40, Sevcon Error Code: 0x52C1, Data: 00 02 00, Encoder fault
00002 12/27/2023 12:27:20 SEVCON CAN EMCY Frame Error Code: 0x5000, Error Reg: 0x40, Sevcon Error Code: 0x46C3, Data: 1F 10 00, Ride Through Fault
(repeats above til it gives up)

----

****************************************
* Sevcon Data *
****************************************

Received PDOs
- Motor speed : 0 RPM
- Age of motor speed data : 51616 ms

- Throttle Input Voltage : 535 mV
- Age of throttle data : 51617 ms

- Motor Temp : 17 C
- Max Motor Temp This Ride : 17 C
- Age of motor temp data : 51618 ms

- Controller Temp : 22 C
- Max Ctrl Temp This Ride : 22 C
- Age of ctrl temp data : 51620 ms

- Battery Voltage : 39.625 V
- Capacitor Voltage : 104.937 V
- Contactor Coil Voltage : 116.000 V
- Age of voltage data : 51621 ms

- Current Target : 0 Amps
- Motor Torque : 0 ft-lbs ( 0 Nm )
- Motor Power : 0 Watts
- Age of current data : 51625 ms

- Speed Target : 0 units?
- Age of speed target data : 51647 ms

- Digital Inputs 1-8 : 0x00


Transmitted PDOs
--Drive Control--
- Max Batt Chg Current : 0 A
- Max Batt Dishg Current : 0 A
- Time Since DrvCtrl Sent : 241075 ms
- Economy Factor : 0x0000


*************************************************************
* Bike Status *
*************************************************************

*** Bike
- Mode : Stopped
No chargers attached

*** Motor Controller
- On : No
- CAN connected : Yes
- CAN Operational : No
DEBUG: 214516 ..\src\Application\zero_mbb_sevcon_interface.c : line 1628 - Un Successful reading SDO from controller 0x2800 sub 0x00, return code 0xFFFFFFFF
- In Operational Mode : Yes
- Drive Mode : Custom
- Motor Temp : 17C - Normal
- Controller Temp : 22C - Normal
- Enabled : No
- Kill Switch
- Contactor Open
- Number of Faults : 0

*** ABS
- ABS Powered : Yes
- ABS Enabled : Yes

*** Batteries
- Num Modules in System : 0
- Num Registered Modules : 1
- Total SOC : 64 % ( 63 % with 5 % pessimism)
- Total Capacity : 100 AH
- Remaining Capacity : 64 AH
- Total Energy Used :1421 KWH
- Throttle En Wire : Enabled

-------------------------------------------------------------------------------------------------------------------------------------
Num Node MY Ver SOC Cap(AH) Volts SCVolts Bal(mV) Cur(A) HTemp LTemp ChgAtt Low Crit OvTmp UndTmp Cont IsoErr IsoResK IsoCell
+----+----+----+---+----+-------+-------+-------+-------+------+-----+-----+------+---+----+-----+------+----+------+-------+-------+
00 8 2015 38 64% 100 105.367 105.365 18 0 23C 23C - - - - - + - 32766 10

*** Chargers

*** Info Messages
- No Info Messages

*** Warning Messages
- No Warnings

*** Error Messages
- ERROR : Too many Sevcon Errors & we gave up.