What can cause code ER020 appear? And how to solve it? 

1. Phase Failure due to motor cable get loose

Troubleshooting: please get the cables well connected again

2. Encoder Failure due to encoder cable get loose

Troubleshooting: please get the cables well connected again

3. Position Error caused by follow reasons:

3.1 Limit sensor failure

Troubleshooting: please replace a new sensor with cable, or adjust the distance between sensor and steel chip.

3.2 Signal interfere

Troubleshooting: please clear the interfere

3.3 Ground protection failure

Troubleshooting: please do grounding correctly

3.4 Motor cable with open circuit  

Troubleshooting: please repair the open circuit

3.5 The timing belts get loose

Troubleshooting: please fasten the belt properly

3.6 Wrong subdivision

Troubleshooting: please set it correctly

3.7 Wrong pulse direction

Troubleshooting: please set it correctly

4. Tracing error out of tolerance caused by below:

4.1 Wrong wiring on encoder

Troubleshooting: please wire encoder correctly

4.2 Wrong order of motor phase wiring

Troubleshooting: please correct the order of phase wiring

4.3 Encoder broken

Troubleshooting: please replace a new motor

4.4 Driver broken

Troubleshooting: please replace a new driver

Our technical support team is ready to serve you, please feel free to contact us if you need any assistance. 

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