vfd to slow

[mitsue]

Hopefully our local electrical guru's will read this:
A thought just occured to me. If it is a two speed motor, does changing speeds change it from a 4 pole to a 2 pole motor?

 

[JT.]

got no idea but you are probably right abou the poles
i try to figger that one out
i ditnot played with the decelleration timings yet
i do not now if the decc time does something on the acceleration

 

[JT.]

pd014 is the time you allow the drive to bring the motor up to speed. It being set too low will make the drive fault.(0.1second) try setting it to 2.0 seconds and set the decelleration time to 1.5 seconds (pd015) should work.
Darcy

it does not change the problem
when setting pd 014 to 2 sec pd 015 to 1.5 it only takes longer to start up

changed the poles from 2-4 and back no diff

it still ramps upt to 30 Hz then run at the same speed till the FVD shuts it off
and give a Ao on the display

it also give a flashing AoA code when running
i do not have the AoA code in the lower gears when it ramps up more normaly

 

[mitsue]

Hang in there. I know it's frustrating trying to figure these things out. I am trying find a referance to the displayed codes, A0 and A0A. The only referance to "A" that I can find is when the drive display is set to show output amps. Check pd0119, "stall prevention at ramp up". Set to "0" to disable. Motor pole count is set on pd143. Try setting it to 2 to run motor on high speed .
I hope this helps. I must get to work now.
Darcy