Quote Originally Posted by Shinobiwan View Post
Cheers mate.

Remember its one of those shitty Chinese VFD's so it'd probably blow a capacitor or something if you tried to up the ramp time lol Safer to do it in software.

I have added a line in my post to include an G04 P4 right after the G3 but your way looks better.
What have you currently got the ramp up/down (PD14,PD15) times set to? I don't remember exactly (will check), but I set mine to no more than a couple of seconds and it's fine. If the acceleration is set too high the DC bus voltage in the VFD will get too high, and the inverter will cut out for protection so it's very unlikely to break anything. Try changing it gradually...
On a machine with gearing etc, like a lathe, it's not sensible to set the ramp up time to something very high, since it would just wearing out the gearbox unnecessarily.