Votronic D+ Simulator - 3066

Votronic D+ Simulator

Control unit for detecting charging operation in a 12 V onboard electrical system (engine running)

If auxiliary consumers are only to be switched on when the engine is running (the alternator is supplying power) or if the onboard battery is to be charged via a separating relay by connecting the onboard and starter batteries together, the alternator's D+ contact is usually used to control a relay.

However, this contact is often inaccessible in the vehicle, no longer present on newer alternators, unavailable in a container conversion, or a voltage-dependent control is generally required. The VOTRONIC D+ Simulator provides a solution here. It generates a corresponding voltage-controlled signal (e.g. from the starter battery) for a subsequent high-power (separating) relay. Further applications arise in the control of auxiliary consumers that are only to be activated when the battery is sufficiently charged, such as switching on an air conditioner during driving or switching a refrigerator, cold box, or heating box to 12 V onboard operation.

Intelligent voltage evaluation of the switching thresholds prevents incorrect switching during voltage drops or spikes. Dynamic threshold detection also prevents oscillation around the switching points when switching very large loads. The switching status is indicated by an LED. The electronics are protected against moisture, and connection is made via a plug-in screw terminal in the rear terminal compartment. The switching output is rated at 12 V / 0.5 A, short-circuit and overload proof, and is of the PNP type, with a positive output and the load connected to ground.

Votronic D+ Simulator