Earthing (Pe / Fe); Ignition Function (Ign); Autostart Function (Switch S1) - ADS-tec HDT8012 Instruction Manual

HDT8012

4.3 Earthing (PE / FE)

The voltage supply (primary side) is electrically isolated from the internal power supply (secondary
side).
Note:
Proper function of the EMC filter is ensured only if the protective earth or the vehicle
earth is connected to pin 1 of the power supply connection.
Note:
When mounting on vehicles, a functional earth must be established.
An additional earthing connection via the earthing screw (see figure in section 4.1.3) is recommended
(wire cross section: min. 2.5mm²).

4.4 Ignition function (IGN)

The device can be started via pin 3 of the power supply. This function is known from the automotive
industry as the ignition function (ignition switch function). The device is continuously supplied with a 24
VDC power supply, but only if the additional signal is present at the release contact, e.g. as a result of
turning the ignition key of the vehicle, the computer is switched on.
The computer can also be automatically shut down in a time-controlled manner if voltage is no longer
present at the release contact.
Prefabricated supply cables are available from ADS-TEC for using this function.

4.5 Autostart function (switch S1)

The autostart function allows the automatic start-up of the device upon application of the supply voltage.
Note:
The Autostart switch in the service slot must be set to ON in order to use this
function, see section 4.1.3.
© ads-tec GmbH • Heinrich-Hertz-Str. 1 • 72622 Nürtingen
17