Subaru Robin Power Products RGX240, RGX180 Primary Exciting Action, Voltage Regulating Mechanism

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5-3-2 PRIMARY EXCITING ACTION

The RGX Series employs an exciting coil in the engine mag- neto for raising the primary voltage. This action is explain- ed. The RG Series generates a voltag2 when the generator IS

started again because of the residual magnetism remaintng FC in the yokes and poles. If a generator of this type is disas-

sembled and stored for a long period of time. the residual magnetism. may dissipate so that the generator may not generate a voltage when it is restarted. The RGX Series has an exciting coil for primary exciting action to eliminate such a phenomenon.

The primary exciting action of the new type is explained below.

When the generator is started. th2 permanent magnet on the 2ngine rotates to generat a voltage in th2 ssciting coil. This voltage is regulated by a diode in the .AVR to f22d a current to the generator field coil (FC). (See Fig. 5-l 7(A).)

The rotor is turnsd into an electromagnet by that sun-ent and rotates so that voltages are generated in ths stator coils (main coil, sub coil: and DC coil). The voltage generated in the sub coils is operated by th2 .AVR to f22d a current to in- crease the field co11current (See Fig. 5-17(B).) As a result. the rotor magnetism increases. This operation is repeated to generate the rated voltage at 50~~ or 6OHz in the main coil and DC coil.

5-3-3 VOLTAGE REGULATING MECHANISM

Connect a load to the AC output terminal and increase cur- rent. Output voltage varies as shown in Fig. 5-17(C) depend- ing on whether an automatic voltage regulator is used or not. The operation of the AVR is explained below.

When an AC output is taken, the engine is loaded and its rpm falls. Also the AC voltage falls due to the voltage arop caused by the internal resistance of the coils. The XVR detects this voltage drop and its built-in SCR automatically increases the current flows to the field coil. As a result, the rotor magnetism increases. th2 voltag2 lowered b>-th2 .oad current is raised. and the output voltage is kept constant. If the AC output is reduced. the SCR operates in the opposite way to similarly keep the output voltags constant.

 

 

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ENGINE

MAGNETO

Fig.

5- 17(A)

 

 

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FC3 AVR

SC E

Fig. 5- 17(B)

WITHOUT AVR

RATED VOLTAGE

VilTH AVR

-A

Fig. 5- 17(C)

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Contents Rain G Mot~ti’RG RGX240 Members Circuit DiagramSafety For U. S. A. and Canadian markets Performance EY20D Model RGX240Model RGX240D DC Output RGX240, RGX24OD Features Page Speed Control Leveh RGX180 Panel L 1 lOV RGX240 Panel L 1 lOV RGX240D Panel RUBB’ER Mount Functions RGX180 RGX240 AVR Automatic Voltage Regulator Circuit Breakers Front Cover Fuse capxiryReceptacle and AC Plugs TerminalsPipe Frame Rear CoverRubber Mounts Rubber Vibration Isolators Shaft Page Voltage Regulating Mechanism Primary Exciting ActionChange of Engine Parts 240 22OV Ignition System Dual Voltage Type RGX240DControl System Cylinder Baffle Fuel SystemCooling System AIR GuideOthers Muffler Cover AIR CleanerCarburetor Phase Safety PrecautionsRange of Applications Model RGX180 ~~~‘~ Measuring Procedure Used for measuring resistance, etc AC Output Measuring Rotor Checking Functional Members 11 OVi22OV AUR Automatic Voltage Regulator BrushesRGX305D Fuse Holder Voltmeters and Pilot Lamp Diode Stack AssemblyReceptacle and AC Plug Exciting Coil AVRPrimary Exciting Circuit As described m 5-3 Description of Generator OPBox Spanner Be careful not to lose th2 Rubbrr IO-2 HOW to DisassembleRemove 6Q bolt Pss Remove the tit21 tank RemarksToolRemarks L4mm spannrrLift th2 generator with a r.hain block OrderRemarks Tool Frame Remove ths box sTa 8g nut Pcs Remove1Omm spanner or box spanner Screwdriver Order Procedure Brush holder Remove the brush coverThem Remove the stator cover Turn up the stator cover edgeCover and stator. and twist it Separate the connector ar d wireIf the stator does not come out Insert a screwdrive betaeen the frontHard ounterclockwse Procedure Rotor Pull out Through-bolt. Fit a boxOrder Procedure Front cover Remove Front colder Head of the through-bolt. strike itSpring washer pcs. Tightening torque 130 to 110 kg-m HOW to ReassembleRear Cover Tighten the cover bolt ’ .zj Install the brush cover 49 x 10 mm screw pcs PCS PCS6ox 15mmbolts Fig. lo-32 Fuel Tank Fig. lo-33 Push Remedy TROUBLE-SHOOTINGDoes not work or pilot lamp does not light Cause CauseRemedy +x+IOK Voltage too low JUhuselRemedy’ Off-load voltage is normal, but load cannot be Caster OptionsEngine ModelContfol BOX Model RGX240D Generator Control BOXModel Rgxibo SymbolsSymbols Name Symbols Name Parts

RGX240, RGX240D, RGX180 specifications

Subaru Robin Power Products has established a strong reputation in the small engine market, offering reliable and efficient power solutions for various applications. Among their lineup, the RGX180, RGX240D, and RGX240 stand out, providing distinct features and technologies designed for performance and durability.

The RGX180 is a compact yet powerful generator. It is engineered for portability, making it ideal for home use, camping, or emergency situations. The RGX180 boasts a robust engine that delivers consistent performance with minimal fuel consumption. Its lightweight design allows for easy transportation without compromising on power output. Additionally, the RGX180 is equipped with a low oil shutdown feature, enhancing the engine's lifespan by preventing damage due to inadequate lubrication. This model is particularly known for its quiet operation, making it suitable for environments where noise is a concern.

On the other hand, the RGX240D is a dual-fuel generator, offering versatility by operating on both gasoline and propane. This feature ensures that users have fuel options available, especially during emergencies or in remote locations. The RGX240D provides higher wattage output, making it a reliable choice for larger appliances and tools. This model is especially appealing for contractors and outdoor enthusiasts who need dependable power for various machinery. Its rugged build and advanced technology contribute to its longevity and performance, even under strenuous conditions.

The RGX240 is a powerful generator designed for heavy-duty applications. With a high output capacity, it caters to users requiring reliable power for construction sites, events, or backup solutions for homes. The RGX240 incorporates advanced engine technologies, such as low emissions and fuel efficiency, aligning with modern environmental standards. It features a user-friendly control panel that provides easy access to monitoring power levels and alerts.

All three models reflect Subaru's commitment to quality and innovation. They feature ergonomic designs, ensuring ease of use during operation or transportation. Built with durable materials, these generators are capable of withstanding tough conditions, enhancing their reliability. Furthermore, Subaru offers excellent customer support and warranties that back these products, providing peace of mind to users.

In summary, the Subaru Robin Power Products RGX180, RGX240D, and RGX240 are engineered to meet diverse power needs while emphasizing reliability, efficiency, and user-friendliness. Their distinctive features and advanced technologies make them suitable choices for both casual users and professionals alike.
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