This ATS controller is designed to upgrade some Hyundai diesel generators with wired auto start function (so-called 2 wire start-stop).Additionally it may expand the generator functionality providing useful services such as wireless control, automatic battery control and charge, pre-heat before start (for engines with a glow plug fitted) and automatic load control. Most Hyundai generators have 3 pin ATS socket fitted, however the ATS controller may be missing or doesn’t have the required functionalities, so our ATS controller could be a solution in this case. The ATS controller has 6 automatic starting attempts (2-3-4-5-6-7 sec) for reliable engine start and the “engine running” monitor which is automatically checking the state of the engine between each starting attempt and constantly after the successful start. Besides that this ATS controller can monitor an external or internal battery bank (12V or 24V) automatically starting the engine after detecting the low battery voltage threshold level. When the battery voltage becomes equal or higher than the high voltage threshold it will automatically stop the engine. This function is particularity useful for the generators left unattended for a long period of time. The ATS controller can be also used as a load controller. Having the load controller on-board the generator starts automatically without the load connected, then, when the engine warm-up time has expired, the ATS controller will put the running engine on load. When stop command received the load will be disconnected immediately leaving the engine running for some time for a cool-down period following the full stop. This function prolongs the engine life and comply with the manufacturer requirements. Should the ATS controller run out of all automatic starting attempts and the engine didn't start, the ATS controller will indicate this failure by the slow intermittent sound. The pre-heating cycle happens in accompaniment with the fast intermittent sound. The engine run failure (low fuel shutdown or emergency stop) will trigger the continuous sound. This way the user will understand what happens to the generator not even looking at it. As an extra option the ATS controller may be supplied with the wireless key fob.

When the ATS controller receives the start command, the glow relay will energise first connecting terminals “E” and “F” together (the buzzer will accompaniment this function with quick intermittent sound), then the fuel and starter relays energised in order to provide the 1st starting attempt. If the 1st starting attempt was unsuccessful, the starter relay will be de-energised for a resting time (10 sec), then the glow relay will energise again. This preheat and start cycle will repeat again until the engine starts. After 6 unsuccessful attempts the ATS controller will de-energise all relays and switch on the slow intermittent sound indicating the “engine start failure”.  

Used to control the battery which could be the engine starting battery or any other battery connected with the generator charger. The BVS part will start the generator automatically when the low voltage threshold is detected (11.9Vdc set by default). It will run the engine until the high voltage threshold detected (13.0Vdc set by default). These voltage thresholds are adjustable and can be set up by us precisely before shipment. Please let us know if you require any different BVS values.