Votronic D+ Simulator Pro

If additional consumers are only to be switched on when the engine is running (the dynamo supplies current) or if the on-board battery is to be optimally charged during the journey via a charging converter, then the D+ contact of the dynamo is usually used for control.

However, this contact is often not accessible in the vehicle or is no longer present in newer dynamos, which is where the VOTRONIC D+ simulator comes in. It generates a voltage-controlled signal (e.g. from the starter battery) for a (cut-off) relay or a charging converter. Other possible applications include the control of additional consumers that should only be activated when the battery is sufficiently charged, e.g. switching on an air conditioning system while driving or switching a refrigerator, cooling or heating box to 12 V on-board operation.

In newer vehicles (Euro 6), voltage-controlled simulation of the D+ signal is often no longer possible due to the energy-optimised alternator controls. This is where the new VOTRONIC D+ Simulator PROcomes in.

It works independently of the dynamo's charging mode, as it generates the signal by recognising the vibrations of the running engine. It is therefore suitable for all vehicle types of all model years. To bridge start-stop phases (e.g. at traffic lights) or during stop-and-go (e.g. in traffic jams), the new D+ Simulator Pro has an adjustable switch-off delay. In addition, a built-in charging voltage monitor prevents unintentional activation in the event of external vibrations, e.g. during ferry journeys.

The VOTRONIC D+ Simulator Pro generates the control signal by recognising the vibrations of the running engine. It works fully automatically and independently of the charging operation of the dynamo and is therefore particularly suitable for vehicles that have a dynamo management system, e.g. vehicles that comply with the Euro 6 standard. With its low current consumption of less than 3mA, it fulfils the requirements of DIN EN 13976.

• Switching output: max. 0.3 A (+ switching, overload-proof and short-circuit-proof)
• Switch-on delay approx. 4 seconds to prevent incorrect activation
• Adjustable, additional voltage monitoring and switch-off delay
• Display of device status via three-colour LED
• Low power consumption
• Suitable for 12 V and 24 V systems.

Technical data

Assembly and operating instructions German