C71 Startup check error

C71A0 Hardware is size0, wrong firmware at the joint

Update firmware

C71A1 Hardware is size1, wrong firmware at the joint

Update firmware

C71A2 Hardware is size2, wrong firmware at the joint

Update firmware

C71A3 Hardware is size3, wrong firmware at the joint

Update firmware

C71A4 Hardware is size4, wrong firmware at the joint

Update firmware

C71A5 Invalid hardware revision

C71A6 ADC calibration failed

C71A7 Unknown error result

The motor wires are damaged, bad connection in screw terminals or defect PCB

Try the following actions to see which resolves the issue: (A) Check joint for damaged or loose connections, (B) Replace the joint

C71A8 Motor short circuit to ground or H-bridge problems

The motor wires are damaged, bad connection in screw terminals or defect PCB

Try the following actions to see which resolves the issue: (A) Check joint for damaged or loose connections, (B) Replace the joint

C71A9 Motor indication signal does not work

The motor wires are damaged, bad connection in screw terminals or defect PCB

Try the following actions to see which resolves the issue: (A) Check joint for damaged or loose connections, (B) Replace the joint

C71A10 Phase 1 is unconnected or not working

The motor wires are damaged, bad connection in screw terminals or defect PCB

Try the following actions to see which resolves the issue: (A) Check joint for damaged or loose connections, (B) Replace the joint

C71A11 Phase 2 is unconnected or not working

The motor wires are damaged, bad connection in screw terminals or defect PCB

Try the following actions to see which resolves the issue: (A) Check joint for damaged or loose connections, (B) Replace the joint

C71A12 Phase 3 or multiple phases is unconnected or not working

The wire is (1) damaged or (2) has been disconnected from the PCB (not likely) or (3) defect PCB

Try the following actions to see which resolves the issue: (A) Check joint for damaged or loose connections, (B) Replace the joint

C71A50 Current sensor test failed

Sensor reported wrong current when probed

Try the following actions to see which resolves the issue: (A) Check joint for damaged or loose connections, (B) Replace the joint

C71A51 Current sensor test failed

Sensor reported wrong current when probed

Try the following actions to see which resolves the issue: (A) Check joint for damaged or loose connections, (B) Replace the joint

C71A52 Current sensor test failed

Sensors reported different currents when probed

Try the following actions to see which resolves the issue: (A) Check joint for damaged or loose connections, (B) Replace the joint

C71A101 Wrong firmware on RLS encoder

If you unable to resolve the issue, login to http://myUR.universal-robots.com and create a new case.