Just finished building a Routakit and fit a Pokeys57cnc to it. Tonight I tried to connect the Huanyang VFD to the board. The relay turns it on and I finally got speed control but not full RPM and it is VERY non-linear. First, symptoms.
S24000 only gets me 20200 RPM, voltage reads 8.1v. S12000 produces 13200 with 4.0v. S6000 is 11000RPM and 2v. So far linear voltages but not VFD response (I'll look into the VFD after I solve the voltage). Then it gets screwy. S3000=9000RPM and 1.4v. S1000=13000RPM with voltage back UP to 4v. If I close Mach4 and use the Pokeys utility and move the PWM slider, same voltage profile is output 0% is 4v, 25% is 2v, 50% is 4v and 100% is 8.1v. In Mach4 diagnostics of the Pokeys plugin, the monitor box tracks correctly from 0% to 100%, but shows it on pin 18 for some reason. All spindle settings are set to pin 17 as spindle control. Board power is from a 24v 5A "laptop" type supply and the jumper is set to EXT for power. I have measured the voltage at both the VFD and Pokeys end and even disconnected the 10v wire and measured output. Ground wire is connected to GNDi and I tried both terminal 1 and 4 for GNDi. Mach spindle settings have been varied with no change in results (i.e. range 6000-24000, 0-24000, PWM frequency varied from 800 to 20000. HELP
Jason