by Mark Kraus » Mon Sep 12, 2022 3:37 pm
I really need to resolve the issue I have with my router running with uccnc. I had it running good using the A as the slave for the gantry. I then tried to install a fourth axis using B or 5 The stepper on the rotary is running a keling 8070d and the step and direction are from the c78 using an ethernet cord and cut on the the 8070d side using the green and orange wires set on 1 and 17 on port 1. when the ethernet cable is plugged in the motor moves by itself wildly. The green light on the c76 goes out when this happens and the other axis stop moving if I am jogging then at the same time. I have servos on the other axis. The other very strange thing is that because I plan on using the 4th axis alot and most programs like fusion 360 specify A as the rotary I switched the A from being the slave to being the Rotary. I then made B or 5 into the slave but it does not work. Here is the strange part. With the software showing that b is selected for the Y slave and the ethernet cable connected to the A port on the C78 it works!!! I am at my wits end. I am using 1.2113 uccnc. I unplugged the vfd and no difference. At one point I tapped on the pulse screw on the driver with 5 volts and the stepper moved. I have an oscilloscope to do testing.