- Joined
- Dec 21, 2019
- Messages
- 1
So I have a Hy 2.2kW VFD to allow for variable speed on my belt grinder, I just switched to an external pot to control my speed as playing around with those arrows gets old, plus I am moving my VFD to an enclosure away from the dust. I have the pot and an external run/stop switch working; however, when I slow down my speed with the pot I trip the VFD and get the error code E.o.V.d, which is over voltage on deceleration. The manual said to use a braking resistor to remedy this, I picked the 70 ohm 300 W braking resistor that the manual said to use for my model and wired it into the P+ and PR lugs on my VFD. I thought this was the end of my problems, however my VFD still trips on decel. I set the stopping mode to decel, my dc braking time at stop to 2.5, and have my braking voltage set at 1 currently, factory setting is 0.1. The manual said that the range for the braking voltage PD031 is between 0-20 and to slowly work your way up, do I just need to keep working my way up until my decel wont trip the VFD (mind you I'm not just cranking the knob over) or is there something else I am missing? An additional setting or additional wiring I missed? One of my buddies suggested adding a resistor in line with the pot, but I'm just not sure anymore on what exactly to do. I've gotten as far as I can with the manual and would like to not fry my VFD or motor so I am kind of at a stand still now. Any help would be greatly appreciated.