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My generator over voltage - Electrical Supplies

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The engine is running too fast or the avr is damaged

Posted on Apr 04, 2010

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I need a rectifier or avr for generac 3500 xl genarator


Ebay and various places including the maker..

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  • Jun 28, 2016 | Generac Electrical Supplies

    1 Answer

    Low voltage output from generator


    if there is output but the voltage is low check the voltage regulator

    Sep 06, 2012 | Robin Subaru SGX7500E Portable Generator

    1 Answer

    High voltage rpm power generator output


    Not sure what you mean "high voltage rpm power generator out", however many people have asked how to adjust the engine for proper voltage output. On generators with~out a voltage regulator, I adjust the engine RPM by using a digital voltage meter that has a Hz setting. Adjust the governor untill the meter displays 60 Hz. With the geneator producing 60 cycles, I know that the engine is turning 3600 rpm (the engine produces max hp when it is turning 3600 rpm). At this point, read the voltage output to verify that the range is between 115 ~ 120. On generators with a voltage regulator, verify/adjust that generator is producing 60 cycles then adjust voltage by turning screw at the regulator (some regulators are sealed with potting compound and can not be adjusted). If your power demands are not that great and you appliance can operate at 50 cycles, adjust governor as needed. Lowering to 50 cycles will also reduce output voltage. Good luck

    Oct 10, 2011 | Coleman Powermate Powermate 5000W...

    1 Answer

    Code P0621


    P0621 Generator Lamp/L Terminal Circuit Malfunction,,The Engine Control Module (ECM) or Powertrain Control Module (PCM) uses the generator turn on signal circuit to control the load of the generator on the engine. A high side driver in the ECM/PCM applies a voltage to the voltage regulator. This signals the voltage regulator to turn the field circuit ON and OFF. The ECM/PCM monitors the state of the generator turn on signal circuit. The ECM/PCM should detect low voltage on generator turn on signal circuit when the ignition is ON and the engine is OFF, or when the charging system malfunctions. With the engine running, the ECM/PCM should detect high voltage on the generator turn on signal circuit. The ECM/PCM performs Ignition ON and RUN tests to determine the status of the generator turn on signal circuit.

    Aug 27, 2011 | Pontiac Grand Am Cars & Trucks

    1 Answer

    I have a 2002 yukon xlt, today the battery light started coming on intermitantly and the battery started losing voltage, I pulled the alternator and had it tested at 2 different auto parts stores , both...


    Is there B+ voltage on the heavy gage wire on the back of the alternator ? Possible blown fusible link. Plus the two wires in the connector go to the PCM - engine computer . One is the turn on signal ,the other is charge indicator control . Having the vehicle checked for DTC'S - diagnostic trouble codes should also be done .DTC P1637
    The powertrain control module (PCM) uses the generator turn on signal circuit to control the generator. A high side driver within the PCM allows the PCM to turn the generator ON and OFF. When Generator operation is desired, the PCM sends a 10 volt signal to the voltage regulator via the generator turn on signal circuit. This causes the voltage regulator to begin controlling the generator field circuit. Once the Generator is enabled by the PCM, the voltage regulator controls generator output independently of the PCM. Under certain operating conditions, the PCM can turn Off the generator by turning Off the 10 volt signal on the generator turn on signal circuit. The PCM has fault detection circuitry which monitors the state of the generator turn on signal circuit. If the fault detection circuit senses a voltage other than what is expected, this DTC will set. The voltage regulator also contains fault detection circuitry. If the regulator detects a problem, the regulator will ground the generator turn on signal circuit, pulling the voltage low. This also causes the PCM to set the DTC.
    Your best bet mite be to take it to a qualified repair shop.

    Dec 28, 2017 | 2002 GMC Yukon XL

    1 Answer

    HONDA GENERATOR PROBLEM : SEPARATE MOTOR AND GENERATOR CONNECTED BY V BELT. MOTOR HAS TWO MODULES UNDER FLYWHEEL. ONE LOOKS LIKE ARMATURE THAT POSSIBLY SUPPLIES PRIMARY CURRENT TO THE HIGH VOLTAGE COIL---...


    The armature (rotating field) is powered by the voltage regulator for 'excitation' which is the term describing a magnetic, revolving field. This magnetic field 'induces' voltage into the stator windings (stationary outer winding), producing voltage for use at the recepticles. Some older generators used a 'permanent magnet field, instead of using a powered winding from a regulator and the voltage and frequency were set by the RPM.
    Frequency is still a function of RPM, but the voltage is controlled by the voltage regulator.

    Aug 28, 2009 | Electrical Supplies

    1 Answer

    I need a printable diagram for replacing an altenater on a 1994 ford mini-van. Does anyone know a website to find one for free?


    Removal
    1. Disconnect battery ground cable (14301) .
    1. Remove snow/ice shield.
    1. Remove engine air cleaner intake tube (9A624) .
    1. Disconnect the generator voltage regulator wiring (14305) to the voltage regulator.
    1. Remove wiring connector bracket.
    1. Loosen the drive belt tensioner (6B209) and remove the drive belt .
    1. Remove the bolts holding the voltage regulator to the generator bracket (10A313) .
    1. Remove the voltage regulator from the generator bracket .
    Installation
    1. Position the voltage regulator on the generator bracket .
    1. Install the bolts and tighten to 40-55 Nm (30-40 ft-lb).
    1. Install the drive belt over the generator pulley .
    1. Adjust the drive belt tensioner as outlined in Section 03-05 .
    1. Connect generator voltage regulator wiring to the voltage regulator. Tighten generator Battery Positive Voltage (B+) wire attaching nut to 9-12 Nm (6.5-9 ft-lb).
    1. Install wiring connector bracket.
    1. Install engine air cleaner intake tube .
    1. Install snow/ice shield. NOTE: When the battery is disconnected and reconnected, some abnormal drive symptoms may occur while the powertrain control module (PCM) (12A650) relearns its adaptive strategy. The vehicle may need to be driven 10 miles or more for powertrain control module to relearn the strategy.
    1. Connect battery ground cable .

    Jul 28, 2009 | Ford Aerostar Cars & Trucks

    1 Answer

    93 Ford F250 5.8 L No Charge


    not cpu.
    Do not field out the field wire.
    Is the alternator ight coming on?
    If you rev engine, does charging system start working?
    There is a resister wire that provides voltage to the field circuit. If the resister is bad, you will only get voltage to the field through the dash alt. light bulb when you push enough voltage through it.

    I don''t have 1993, but here is 96:

    Generator with Integral Rear Mount Regulator, Internal Fan Type With the key in the RUN position, voltage is applied through the charge indicator lamp I circuit to the voltage regulator. This turns the voltage regulator on, allowing current to flow from the battery sense A circuit to the generator field coil. When the engine (6007) is started, the generator (GEN) (10346) begins to generate alternating (AC) current which is converted to direct (DC) current by the rectifier internal to the generator. This current is then supplied to the vehicle's electrical system through the battery positive voltage (B+) terminal located on the rear of the generator. Once the generator begins generating current, a voltage signal is taken from the stator and fed back to the voltage regulator S circuit, turning off the charge indicator/lamp. With the system functioning normally, the generator output current is determined by the voltage at the A circuit. This voltage is compared to a set voltage internal to the voltage regulator, and the voltage regulator controls the generator field current to maintain proper generator output. The set voltage will vary with temperature and is typically higher in the winter than in the summer, allowing for better battery recharge. With the system functioning normally, the generator output current is determined by the voltage of the A circuit (battery sense voltage). The A circuit voltage is compared to a set voltage internal to the voltage regulator, which controls the generator field current to maintain proper output. The set voltage will vary with temperature and is typically higher in the winter than in the summer, allowing for better battery recharge in the winter and reducing the chance of overcharging the battery in the summer. A fuse link is included in the charging system wiring on all models. The fuse link is used to prevent damage to the wiring harness and generator if the wiring harness should become grounded, or if a booster battery with the wrong polarity is connected to the charging system.
    -------------------------------------------------------------------------

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    • System Does Not Charge
    • Loose or worn drive belt.
    • Open/voltage drop in Circuit 38 (BK/O).
    • Open/voltage drop in Circuit 36 (Y/W).
    • Open/high resistance in Circuit 904 (LG/R).
    • Damaged regulator.
    • Damaged generator battery


    Apr 13, 2009 | 1995 Pontiac Sunfire

    2 Answers

    Generator Wattage


    both sizes will handle that stuff as long as generator maintains a constant rpm. otherwise you run risk of low voltage or voltage spikes which cpu will not handle for very long

    Dec 19, 2008 | Coleman Powermate Powermate 5000W...

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