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MC43 Reports Vref error cannot measure
Jon G 4 weeks ago
in Master modules / MC4x
•
updated by Gustav Widén (System support) 3 weeks ago •
1
Good morning. I have and MC43 and MD4 running on a machine that is programmed in 6.08.32. I am getting random MC43 Vref B error codes along with the errors for the switches and transducers connected to that Vref.
When I record a plot graph of the MC43 diagnostic channel attached to the Vref, input voltage, and the input voltages for all the sensors, I am not able to record any change in the voltages that would indicate a Vref issue. Has anyone else ran into this issue?
Customer support service by UserEcho
It could be either under- or overvoltage due to a short, or undervoltage due to an overload.
As long as the VREF is OK, IQANdesign will just show 5V. If it drops out due to an error, you will see VREF error and the value 0.
To see the actual voltage you will need to measure with an oscilloscope.