Hello everyone, I am looking for any hints on how to wire up an ATS connector on a customers´ genset (HERON 8896227- with the remote start/stop function built-in) to Cerbo GX or MPII allowing for the auto start/stop function. I am attaching the ATS connector pinning and hoping somebody has done this. I couldn´t get any help in Czechia, for which I am turning to you. I have seen the 2-wire to 3-wire manual, but still not sure of how to wire it up in this case.
Thank you for your time.
Vl.
What accessories have you gotten so far?
Here’s the circuit diagram for the generator…
Pins 3 and 4 activate the starter motor… but this contact MUST drop back when the engine is running. However, the Cerbo relay remains energized… an additional relay must be installed here, which responds to pin 7 and stops the starting process… otherwise the starter motor winding will burn out and the starter motor will remain in the engine’s starter ring gear…
So it’s relatively simple with 1 relay … but you need a simple 12V relay for the “protective function” for the “engine running” signal from Pin 7
Stopping is done via pin 3 to 2 … this contact then remains closed and the generator is stopped …
I use two Finder 80.51 relays for that which was easier to obtain.
see also at the end:
And one more very important note at the end:
All of these portable generators form an IT network and not a TT or TN network (please google IT, TT, TN).
This means they have no bridge between the PE and N conductors.
However, this is essential for the RCD to work properly after the Multiplus if it is powered by the generator. Please also remember the grounding rod. In stand-alone operation, multiplus forms this bridge itself with the grounding relay. Further information can be found in the Multiplus manual.
If all this is Greek to you, please consult a qualified electrician
Thanks a lot Steffen. I´m going to try it and post back any findings.
Vlad.
Dear Steffen, I was only partially successful with testing the connection. Start-up is only available by connecting pins 1 (12+) and 4 (Start relay) and since stopping is as you propose by pins 2 and 3, I don´t know, how to wire it up on the Cerbo side. The second Cerbo relay is available only for temperature or manual switching. Any idea on how to proceed?
Perhaps the stopping might be available also with pins 1 and 2, but I didn´t test that. If that works I´d connect the 12+ pin 1 as COMM to Cerbo…
Thanks alot for your time.
Vlad.
It appears that the system functions somewhat differently than I had anticipated.
I will adjust the drawing…thank you for your brief report.
1 and 4 together…starts the starter BUT for that, the switch MUST remain in the RUN position, correct? 
No, the switch only drives the starter and must be disconnected as you proposed originally.
Perhaps the stopping might be available also with pins 1 and 2, but I didn´t test that. If that works I´d connect the 12+ pin 1 as COMM to Cerbo…
According to the circuit diagram, 1 and 4 can stay together…
That would then be contacts c and d in the assignment table for Run AND Start…
or its maybe wrong in the circuit diagram
Well, I might try to connect them for a little longer time, but so far it keeps running the actuator(?). And when the generator starts, disconnecting the pins 1 and 4 wouldn´t stop it.
What do you think about stopping it by the pins 1 and 2? Might that work too?
The diagram might be wrong since even the cable colors don´t match! /,-)
Anyway, I am really greatfull for your help and will try and test further next weekend and keep you posted.
The pins 1 and 4 must be disconnected again BEFORE stopping … see the switchtable
It may be that the starter motor pinion does not continue to run because the starter motor itself has a freewheel mechanism.
It is only important that the starter motor runs and the generator is starting when pins 1 and 4 are connected.
Stopping via pins 3 and 2 probably short-circuits the ignition to ground.
That is clear. No problem there.
Would connecting 1 and 2 do the same job (stopping the generator)? I am not really familiar with reading such diagrams…
Connecting 1 and 2 would cause a short circuit between positive and ground… So don’t do it under any circumstances !!! 
New drawing … with 2 relays …
a cut-off/stop relay and a start relay which ensures that the starter motor does not continue to start when the generator is running
Thank you, I will try to install it during the next weekend.
Regards.
Vlad.
