Forums Niryo One Troubleshooting Burst CAN connection problem with motor Reply To: Burst CAN connection problem with motor

FindingNiryo
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Support, thank you for your assistance in trying to resolve this problem.
After receiving the reconditioned arm and upgrading the firmware on stepper 1 to version 2.0 I booted the robot and established wifi connectivity (switched from hotspot mode). I performed an automatic calibration and let the robot sit. Within 1 hour there was one CAN bus error. within seven hours the CAN bus errors triggered a “calibration required” condition.
Here is the log:
[2019-05-16 14:59:21] Writing calibration offsets to file : 3:558 2:987 1:596
[2019-05-16 14:59:21] Resume can hw control
[2019-05-16 14:59:21] CAN : Start hardware control loop
[2019-05-16 15:51:50] CAN connection problem with motor 1, hw fail counter : 0
[2019-05-16 15:51:50] CAN connection problem with motor 1, hw fail counter : 1
[2019-05-16 15:51:50] CAN connection problem with motor 2, hw fail counter : 0
[2019-05-16 15:51:51] CAN connection problem with motor 2, hw fail counter : 1
[2019-05-16 15:51:51] CAN connection problem with motor 2, hw fail counter : 0
[2019-05-16 21:39:11] CAN connection problem with motor 1, hw fail counter : 0
[2019-05-16 21:39:11] CAN connection problem with motor 3, hw fail counter : 0
[2019-05-16 21:39:12] CAN connection problem with motor 3, hw fail counter : 1
[2019-05-16 21:39:12] CAN connection problem with motor 3, hw fail counter : 2
[2019-05-16 21:39:12] CAN connection problem with motor 3, hw fail counter : 3
[2019-05-16 21:39:12] DXL : Start hardware control loop
[2019-05-16 21:39:13] Stop Can hw control
[2019-05-16 21:39:13] CanComm : Stop hardware control loop
[2019-05-16 21:39:13] Set calibration flag
[2019-05-16 21:39:13] CAN : Start hardware control loop
[2019-05-16 21:39:13] DXL : Start hardware control loop