Rotax 912 - what is the right RPM wiring?

[Taigajoe]

Hello,

I want to connect the RPM wire of my 912S to the EMS.

In the installation guide I found two different ways:

1. Following is written in the Table 29–Example Rotax 912 37-pin Connector Sensor Map:

32 White/Green RPM Left (standard)
33 White/Blue RPM Right (standard)


2. Following is written on p. 6-27:

Trigger Coil (Rotax)
The Rotax 912 engines have a 5th trigger coil for the purposes of electrically monitoring rev counts. This trigger coil outputs to a two[ch8208]wire harness. Connect either of the two wires to ground; connect the other to the standard RPM Left input on the SV EMS220.


How should I connect the 2 wires for RPM: to pin 32 and 33 or to pin 32 and ground?

Thanks!

Regards,

Taigajoe

 

[dynonsupport]

On the chart, pin 33 should be marked as "not connected". We'll update that. The more verbose instructions in the manual are correct: connect either of the two wires to ground; connect the other to the standard RPM Left input on the SV-EMS-220.

 

[Taigajoe]

Thank you!