Problem with RTK6

[cromwell]

Hello!

I seem to have problem when connecting my RTK6 control-unit for the first time.

I have just connected plus 12V and ground to the unit like this:



When I push the light-button to turn on the unit a "zero" just flashes under the light-button and the unit beeps four times fast and after that the whole panel lights up + flashes and beeps and turns it self off.

Could I have connected something wrong or what?
(I have just connected +12V and gound to the unit, nothing else yet).