SSI encoder testing failed

Dear Colleagues,

We have one 3rd-party motor with SSI encoder. we have tested it with our HCS01, it'OK. when move to ctrlX Drive with XG21 EC interface,it always reports "C1108 error during encoder intitalization". please see the picture below, but I don't know how to upload the par. file.

Could you help to provide any suggestions? thank you!

Best Regards,

Henry

Best reply by Drives_Uwe

Hello Jordi,
lateron it showed that the SSI encoder was not behaving like all the other SSI encoders and was even not exactly like the manufacturer specified by himself. In the beginning of the data transmission the state should be "1" but it is shortly "0". Therefor we detect this as an encoder where some of the wiring has broken and show an error message. As in before with IndraDrive Cs this wire break detection was done hardware FPGA based the error didn´t show up whereas now at ctrlX DRIVE we do it just digitally. We will create in one of the next firmware versions an additional parameter where you may switch off this monitoring via a configuration bit. Then the particular SSI encoder will be able to be evaluated.

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