Hi Everyone,

finally this problem has been solved.
A loose cable connection was found at gate in SCR 5 in chopper unit.

thank you all for your support.

Luis

the "double click" is usually a result of the "look ahead" circuit looking to check to see if number 5 rec will turn on correctly before firing the number 2 rec for the first time.
I would want to know what the voltage is at "T2" on the chopper panel before starting further troubleshooting.

I will follow it up what you have told me in regards loose connections.
Results will be posted.

Thank you,

Luis

contact me at e-mail for a wide explanation.
Saludos.

Hi Luis 2 common faults on the EV100 units when the recs are ok is either the snubers are faulty or the pins on the logic connector have gone loose and pushed back. Also there is a connection under the snubbers which i think comes off the capacitor which can go loose, just may need tightening up.

What i usually do is swap the snubbers around if i do not have any spare with me and see if the fault codes change, sometimes just swapping them around can cure the faults.

Hi Roldann,

Yes it is the original failure, at the time I want to go forward or reverse the directional contactors just make 'click" twice and it does not move.

i've changed 2-rec and 5-rec, control board, Cap was tested ok as well as 1-rec, 3-4 rec are ok.

I do not know what to do at this time, I have done the above listed actions without success.

Any help is well appreciated it.

Luis

Luis, Did you already solve the problem?.. Does display show any code?, think i can help. Just some more info
is it the original failure?

Hi Luis.

What is the problem? What is the truck doing or not doing?