[Tkamsker]

Hi,
i am verry happy with the VSD-E /x Drives which i use in My Retrofit project i am about to Finnish soon (some pics here http://www.tkamsker.at:8080/web/pub/analyse on my old homepage)

the Z Axis has around 350kg and has an Brake
in Normal mode the brake works as it should
But if i switch off the 160V to simulate error the Brake is still open only if i switch off the 12V the brake is closed.

I was under the impression that if there is an under voltage (or over voltage and other errors like the manual says ) the brake should be applied.

i did configure that error reset works if power is back to ok

Is there anyone who has an hint for me because this really blocks my finnishing ,..

i did play for more than 6 weeks to get the configuration the way i have it right now ,..
so sometimes the moving masses make the drive stall and in that case i need the brake working

so i am happy for any input or advice or sample what i could do

thx
thomas

[Montabelli]

try putting a ttl relay in the circuit to chop power to the brake when the error signal changes state.

[Tkamsker]

Hi,
do you mean i should do an circuit which reads the fault pin and if it goes high i cut the brake line using an relay ?

Thank you for the input i will consider that as plan b i hope i get answer of granite beginning of next week

[Montabelli]

it has been a long time since I set up my machine but I don't think the vsd will operate the brake, it needs to have some sort of circuit to manage the operation, I can't remember if the breakout board they sell includes that or not or if you are using it.

[Tkamsker]

Hi
i am referring to that picture so in theory the VSD should be able to do the brake (which is happening to some extend)
Attachment 237518
and the Status picture says
and the logic
Attachment 237520

So i now have to somehow intercept the error signal and work it to an extra relay ,..
thx
thomas

[Montabelli]

obviously you are correct, i guess I discounted it as I have 110V dc brake on my system so a relay is required.