Hello
I have a machine using Canopen to control 6 sanyo denki Rs1 servo amps via a fx2n 32 can module
Recently machine stopped and only fault we could find is
1. error light flashing on one of the amps canopen plugs
2. all run lights also flashing
3. no Tx/Rx light on can module
Replaced amp, module and motor no go but now encoder battery fault because it was disconnected
Tried all parts in local distributors machine as a test and worked ok
Can download parameters from PLC cant clear encoder fault
no faults in BFM 29
BFM25 indicates pre operational mode
All drive indication no fault only Can Open not active
manufacturer insists i need to clear encoder fault before Can open will function correctly
Question 1 - Would the A2(battery fault) prevent the communications layer from going operational
Question 2 - is there anything that would physically cause the bus to fail to go operational i.e. if I skipped a drive on distributors machine I would get a similar fault but with extra error light on skipped drive.
Question 3 - what is best place or way to lookup faults in system
