DC/AC converter function - GF54.10-P-2005GR

MODEL 166 up to model year 2016 with CODE U80 (115 V socket) 

Function requirements, general 

• Circuit 15R ON

The electronic ignition switch control unit (N73) transmits the circuit status c. 15 via the interior CAN (CAN B).

DC/AC converter, general 

Small electrical devices that require supply with U = 115 V AC voltage can be connected to the 115 V power outlet (X58/34).

Function sequence for DC/AC converter 

The SAM control unit (N10) controls the function of the DC/AC converter control unit (N24/3). When a consumer is connected to the 115 V socket, it is detected by the microswitch power outlet (X58/34s1). The SAM control unit supplies power to the microswitch power outlet.

If a consumer is connected to the 115 V power outlet, this voltage is switched through to the control input of the DC/AC converter control unit. The DC/AC converter control unit converts the DC voltage of the on-board electrical system into AC voltage. An LED integrated into the 115 V power outlet indicates the availability of AC voltage.

The maximum available electrical continuous load is P = 150 W, for a short-term up to P = 300 W is permissible for t = 2 s.

If the interior temperature of the DC/AC converter control unit rises above a defined limit value or if the output load exceeds the overload threshold of P = 160 W for t = 2s, the DC/AC converter control unit switches off.

The DC/AC converter control unit prevents the inverter from constantly switching between on and off when it approaches the limit value.

If undervoltage is detected by the energy management system, the DC/AC converter control unit is switched off and the power supply to the 115 V power outlet is interrupted.