CAN YOU MAKE A GENERATOR START AUTOMATICALLY?

Yes, a generator auto start module automatically starts the generator engine by driving three relays that control the fuel solenoid, pre-glow and starter motor. You can make a generator start automatically only supposing it features an efficient electric start circuit.

WHAT IS A GENERATOR AUTO START MODULE

In other words, it emulates, the behaviour of a human being when starting the engine using the key. It additionally provides safeguards to protect the engine and generator. A user-friendly auto-start module offers a display and a suitable number of LED indicators.

OPEN THE PAGE OF  BE24 GENERATOR AUTO START CONTROLLER

By installing the Be24 you can make a generator start automatically by programming a scheduler. In this way, your generator will regularly automatically start to keep the mechanical parts, lubricating, system and battery always active. You can also connect the auto stat module to other devices like remote control or ATS panels.

CAN YOU MAKE A GENERATOR START AUTOMATICALLY?


How does an emergency generator start automatically?

The generator auto start module triggers the starting circuits when detecting a request from an Automatic Mains Failure relay, a general purpose normally open or closed contact, a software request via serial interface or when the battery is low. The starting circuits consist of pilot relays for fuel solenoid, pre-glow and electric start. A generator auto start unit is a mandatory choice when you need to automatically that the generator for the following reasons.

1)  You need to automatically charge the battery. The generator is placed in a remote location. No utility power can recharge the battery. From time to time you need to start the engine. The goal is to recharge the battery.

2)  You need to start the generator to supply particular tools or machinery like an irrigation pump for example.

3)  You need an automatic start in case of mains failure. In this case, we are talking about the Automatic Mains Failure controller. The most popular application is on a standby generator for your house.


HOW TO TRIGGER THE GENERATOR AUTO START MODULE?

There are several ways. The most common to trigger an auto start controller is via a digital input. In other words, you connect a switch. It could be normally open or normally closed. The choice is based on your level of safety needs. Another common way is via analogue input. Based on adjustable settings, the generator will start and stop based on the level of a DC voltage. This is the case with low battery voltage monitoring. You set a start threshold and you set a stop voltage threshold. Advanced monitoring systems feature timers to control the start and stop delays.


BE1  AUTO-START MODULE FEATURES LOW BATTERY START AND RS485


There are advanced ways to trigger the automatic start module via GSM or TCP_Ip request. In industrial applications, the simplest method is by using the RS485 start-stop. This is done via MODBUS commands. The limitations of the RS485 are about 1000 meters using a twisted pair cable

Can a generator turn on by itself?

This tutorial is about automatic generator auto start modules. The following matters will be deeply analyzed: automatic generator start and stop wiring diagram, portable generator auto start kit, 2 wire auto start generator, generator self-start kit, low battery auto-start generator, GSM-based automatic start-stop and automatic start generator for home.


CAN A PORTABLE GENERATOR START AUTOMATICALLY?

If your portable generator features an electric start, you can install the Be1 generator auto start module with two automotive relays. The solution is easy if you follow our instructions. In the case of a gasoline engine, you are required to install a mechanism to activate the choke.


 GENERATOR AUTO START FOR HOME

If your goal is to provide electricity to your house, there is a workaround solution. You can use a portable generator without an electric start and get at least an automatic changeover. If you install the auto-start module, you will get a fully automatic standby generator. In case of mains failure, or utility power failure if you will, you can follow our recommendations.

generator auto start controller video


HOW DO I REMOTE START MY GENERATOR?

If it is about a diesel engine it is really easy. If it's about a gasoline engine you may require a mechanism to activate the choke when the engine is cold.  The Be1, Be24 and Be124 feature suitable outputs for this task. If your engine is based only on a key start, you may connect pilot relays to drive the fuel-solenoid and start-solenoid. When the engine is running, the controller automatically terminates the crank.

THE BE124 IS THE MOST ADVANCED GENERATOR AUTO-START MODULE AVAILABLE ON THE MARKET TODAY.

the most advanced generator auto start available today on the market


USING THE GSM WITH A GENERATOR AUTO START MODULE

It depends on how reliable your system has to be! We discuss only safe solutions that work 100%. The best way is via GSM. By using the Be148 GSM kit you have the option to start and stop your generator via simple SMS. The SMS is the most reliable way to communicate via GSM. Another method, let us say, via INTERNETt requires complex setups. The Be148 sends back SMS feedback about the status of the engine whether it is running or not. It informs you about the status of the battery and other details. If you like D.I.Y activity, you may add a few relays and you can make a cost-effective GSM-based generator auto-start kit. The best solution is to interface the Be148 with one of our professional auto-start modules like Be24, Be1 or Be124.

VISIT THE BE148 PAGE

GENERATOR GSM START STOP KIT


HOW DOES ELETRICAL START WORK ON A GENERATOR?

The principle is similar to your car. A fuel solenoid is energized to allow the fuel to flow. At the same time, the crank motor starts the engine. You release the key when the engine is running. If it is about an auto start module, a special circuit described on this page will automatically disconnect the starter motor.


DO ELECTRIC START GENERATORS HAVE A BATTERY?

Yes, this is mandatory. You are required to carry out the best maintenance you can. This will help you avoid frustrating experiences during a power outage. For this reason, the best option is to provide a low-battery generator auto-start feature. We have all the solutions for you.


LOW BATTERY AUTO START RELAY

WHEN YOUR PURPOSE IS KEEPING YOUR BATTERIES FULLY CHARGED YOU REQUIRE A BE48 LOW BATTERY GENERATOR AUTO START MONITORING RELAY.

You can purchase the relay and connect it to your Auto Start Module. If your generator does not feature an auto-start module, you can use the embedded relays included in the Be148. You will build a cost-effective, reliable, low-battery auto start module

BATTERY MONITORING WITH AUTO START


GENERATOR AUTO START SWITCH

ALL ABOUT NORMALLY CLOSED OR NORMALLY OPEN CONTACTS IN DRIVING YOUR GENERATOR AUTO START MODULE INPUT

A normally open switch (N.O.) is a switch that is in its open position when you do need to start the generator. When you close the switch, the auto start controller will instruct the engine to start (immediately or after a delay if allowed by the auto start controller). When you open the contact the engine will stop (immediately or after a delay if allowed by the auto start controller).

THIS IS THE NOTATION OF A N.O. SWITCH


A normally closed switch (N.C.) is a switch that is in its closed position when you do need to start the generator. When you open the switch, the auto start controller will instruct the engine to start (immediately or after a delay if allowed by the auto start controller). When you close the contact the engine will stop (immediately or after a delay if allowed by the auto start controller).

 

THIS IS THE NOTATION OF AN N.C. SWITCH

WHY AND WHEN TO USE N.C. OR N.O. CONTACTS

This is only about safety. In other words, what would happen in the worst scenario: a broken switch, an open connection or a short circuit? You have to consider all issues. If you use a normally open switch and the cable is disconnected, you will be not able to start the engine. This could be a serious issue in the case of fire protection systems. On the other hand, in the case of open circuits, you will not be able to stop the generator. So the final decision can be made after analyzing all aspects. For normal operations, the N.O. option is the most common choice. Top-level Bernini design generator auto start controllers feature programmable options N.O./N.C. and generator turn-on/turn-off timings up to 24 hours.

GENERATOR AUTO START CIRCUIT DIAGRAM

GENERATOR CONTROLLER AUTO START CIRCUIT DIAGRAM

UNDERSTANDING AUTO START CRANK TERMINATION

'Crank Termination' is an adjustable engine speed setting or condition, if you will,  that shuts down the starter motor when the engine is firing. The cranking must be terminated correctly. This is the most complex function carried out by a generator auto-start controller. The output of the generator auto-start controller drives a pilot relay. When the engine crank termination setting is reached, the pilot relay will stop the current flow to the starter motor circuit. The starter motor pinion gear will disengage from the engine flywheel ring gear. The theory is not so complex. Unfortunately, many ‘volatile’ parameters are involved when you crank an engine: the battery, the ageing of the starter motor, ambient temperature, difficulties in starting the engine due to mechanical problems, unstable connections, and so on. When it is about the manual switch start, you will find sooner or later the problem and finally, you will start the engine. The hard job of the generator auto start controller is to analyze all sources of information to start the engine automatically. It monitors the charger alternator voltage (V), the charger alternator frequency (Hz), the generator alternator voltage (V), the generator alternator frequency (Hz), and the rotational speed of the engine (RPM). For each parameter, the generator auto-start controller features programmable settings including the option 'OFF' (the controller ignores the parameter set to ‘OFF).

The most accurate rotational speed (RPM) information is provided by a pickup. Unfortunately, not all engines have this device. It is about a permanent magnet generator with a single pole. Wire coils are wound around a permanent magnet pole piece. When the teeth of the flywheel ring gear move through the magnetic lines of force that are around the magnetic pickup pole an AC voltage is generated. Engine speed is measured by the frequency of the signal generated by the pickup. You can program the number of teeth of the ring gear in a way to get the correct rotational speed). When the generator auto-start controller starts the engine, a software routine continuously compares in real-time the settings with the parameters (voltages, frequencies, etc). Once at least two signals are recognized as ‘true’, the controller terminates the crank. The following diagram helps to understand how 'crank termination' works.


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