E15 solution for cx5120 controlling Huichuan is620n servo error

In the course of debugging , Connecting Huichuan PLC, Servo error E15. In this paper, CX5120 Control Huichuan IS620N Servo error E15 Solution .

1. Operation process
   1.1. Beckhoff
   1.1.1. Basic software and hardware
   Cx5120 And Beifu related I / O modules 、TwinCAT3、 Huichuan EtherCAT servo IS620N
   

1.1.2. Problem description
After connecting the controller , Display error E15, And EtherCAT Connection is in OP Pattern , And the encoder has feedback , As shown below ：

1.1.3. Problem analysis
First, find the error code explanation according to Huichuan servo manual , As shown below

 According to the error reporting prompt, the analysis is divided into two steps , First of all XML file , The second is EtherCAT Communication timed out .

1.1.4. Xml File analysis
The first is to update XML file , You can download it on the official website of Huichuan , As shown below .

1.1.5. EtherCAT Network analysis
In the update xml After the document , Or an error E15, It is EtherCAT Communication problem . From the configuration, we can see that there are two