Hello,
Yes, you can do that. First, you should setup overspeeding scenario. Keep in mind, that you need to connect DOUT1 to fuel pump power supply or to accelerator pedal controller, because you will need to limit speed with DOUT1:
Then, setup your geozones, in which you will limit speed at 60 km/h.
Geozones overspeeding and simple overspeeding scenarios control the same DOUT if the main overspeeding scenario is configured.
Hope that helps.
Best regards.