Description of Fault Codes
‑86‑
MCU and ESC communication times out.
Cause
Troubleshooting
Solution
MCU and ESC
communication timeout
The fault persists after the
servo drive is powered off
and on repeatedly.
Replace the servo drive.
● EE18.0: PN device name missing
Description:
The device name is missing.
Cause
Troubleshooting
Solution
The communication is
faulty, leading to device
name loss.
Check whether the device
name is present through the
software tool network.
Re‑assign a device name.
● EE20.0: Continuous position reference not supported in relative positioning of
telegram 111
Description:
Continuous position reference is set for telegram 111 relative positioning.
Cause
Troubleshooting
Solution
Continuous position
reference enabled in relative
positioning of telegram 111.
Check whether bit12 of
POS_STW1 is 1.
Set bit12 of POS‑STW1 to 0.
4.2 Internal Faults
When any one of the following fault occurs, contact Inovance for technical support.
● E602.0: Angle auto‑tuning failure
● E220.0: Phase sequence incorrect
● EA40.0: Parameter auto‑tuning failure
● E111.0: Internal parameter error
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