Question about Generac 5626 GP Series GP7000E 8,750 Watt 410cc OHV Portable Gas Powered Ge

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How do you adjust the voltage?

The voltage output is 110V measured at the generator with an 8 A load on each of the two 20 A 120V circuits (current measured at the generator with clamp type DMM). Frequency is 60 to 61 Hz.

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  • lmclmsw Jun 23, 2009

    The load consisted of two fridges and two freezers during a recent power outage. Generac tech support said the voltage is acceptable but could be adjusted somewhat by an authorized dealer. I'm wondering if the "adjustment" is simply an increase in engine speed which would raise the frequency. If so, I'll live with it. I see no electrical adjustment under the end plate of the generator. The unit did run the appliances for about 100 hours during the extended power outage.

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Hi,

As per instructions says the voltage regulator is automatic/digital. when you check the voltage is there any load on the generator? if applying load to the generator doesn't help, you can manually change the motor speed where the governor connects to the carborator, but it may change the frequency, but the regulator may fix it.

Applying load will increase the excitation current (its how the generator knows to start making electricity) anyways, i usually use a shop light for my load, you can't hurt them with low voltage. the adjustments for the motor speed will be mechanical (prob. a screw or linkage) i would call customer service if all this fails, they actually help pretty good .

Hope i helped you.

Thanks for using "Fixya".

Posted on Jun 23, 2009

  • taran_2005
    taran_2005 Jun 24, 2009

    Hi,

    As of now, there is no such 'Adjustment' module ' in these models.I am afraid, there is nothing that you an so at this moment.

    Hope i helped.

    Thanks for using 'Fixya'.




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1 Answer

How to increase the output voltage


Measure the Generator after 10 minutes the first measure but not only to one power outlet with doing a measure with a multimeter its not done so because the generator is fully unloaded then you will see 105 vac
Measure on one outlet and use a paint stipper a 2000 watt type and measure at the same time on the second power outlet with a multimeter on AC you should get more volts out to measure instead of 105 volts then you hear that its generate power and blow more smoke you will be seen a 115 or 120 volts if you increase this generator its possible you get if you are increase the idle power to 120 volt can create an over loading of 200 volt or more over the outlets that can give damage if it the stator electric field generate power outside its level it can blow up your expensive tools and in a short time you think there is not enough power on my tools anymore then your armatures are become bad and the tools are hot in a short time warmt dissipation has blow up armature and nothing smels hot but the tools are blowing up. and you see nothing inside because the tools will not are getting black burned and hot but the to high magnetic pulse burns the weak points inside the armature in a fraction of time.
Beware of that the adjusting is normally doing with a tacho meter and a suggestion of about 3000rpm and not more of the stator what its max depend on model . but adjust by the load power of a working paint stripper it can have enough if you adjust 120 volt by load.

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1 Answer

What is causing the battery to drain?


Running the car will drain the battery it if it's not charging ! An if your charging light is on it isn't charging ! Did you check power an grounds on the alternator ? There is a single heavier wire on the back of the alternator, this should have battery voltage ! You may want to take this to a ASE certified repair shop !
Functionality
With the ignition switch in the RUN position, voltage is applied through the warning indicator I circuit 904 (LG/RD) to the voltage regulator. This turns the regulator on, allowing current to flow from battery sense A circuit 35 (OG/LB) to the generator field coil. When the engine is started, the generator begins to generate alternating current (AC) which is internally converted to direct current (DC). This current is then supplied to the vehicle's electrical system through the output (B+) terminal of the generator.
Once the generator begins generating current, a voltage signal is taken from the generator stator and fed back to the regulator S circuit 4 (WH/BK). This voltage feedback signal (typically half the battery voltage) is used to turn off the warning indicator.
With the system functioning normally, the generator output current is determined by the voltage of the A circuit 35 (OG/LB). The A circuit 35 (OG/LB) voltage is compared to a set voltage internal to the regulator, and the regulator controls the generator field current to maintain the correct generator output.
The set voltage will vary with temperature and is typically higher in cold temperatures and lower in warm temperatures. This allows for better battery recharge in the winter and reduces the chance of overcharging in the summer.
Battery Positive Output (B+) Circuit 38 (BK/OG)
The generator output is supplied through the battery positive output (B+) terminal on the back of the generator to the battery and electrical system.
I Circuit 904 (LG/RD)
The I (ignition) circuit 904 (LG/RD) is used to turn on the voltage regulator. This circuit is powered up with the ignition switch in the RUN position. This circuit is also used to turn the charging system warning indicator on if there is a fault in the charging system operation.
A Circuit 35 (OG/LB)
The A (battery sense) circuit 35 (OG/LB) is used to sense battery voltage. This voltage is used by the regulator to determine generator output. This circuit is used to supply current to the generator field (rotor). The amount of current supplied to the rotor will determine generator output.
S Circuit 4 (WH/BK)
The S (stator) circuit 4 (WH/BK) is used to feed back a voltage signal from the generator to the regulator. This voltage is used by the regulator to turn off the charging system warning indicator. The S circuit is fed back externally on external mounted regulator generators.
Visual Inspection Chart Mechanical Electrical
  • Battery case, posts, hold-down clamp, cables and connections
  • Generator drive (serpentine) belt for condition and tension to make sure there is no slip between the belt and the pulley. For additional information, refer to Section 303-05 .
  • Battery charge
  • Generator pulley
  • Battery junction box (BJB)Mega Fuse
  • Battery junction box fuse:
    • 11 (20A)
  • Central junction box (CJB) fuse:
    • 30 (30A)
  • Circuitry
  • Charging system warning indicator
  • Cables
  1. Check the operation of the charging system warning indicator lamp (instrument cluster). Normal operation is as follows:
    • With the ignition switch OFF, the charging system warning indicator should be OFF.
    • With the ignition switch in RUN and the engine off, the charging system warning indicator light should be on.
    • With the engine running, the charging system warning indicator light should be off.
  1. Verify the battery condition. Refer to Section 414-01 .
Normal Charging System Voltages and Charging System Warning Indicator Operation Ignition Switch Position A Circuit 35 (OG/LB) S Circuit 4 (WH/BK) I Circuit 904 (LG/RD) Generator B+ Circuit 38 (BK/OG) Battery Engine to Battery Ground Charging System Warning Indicator Operation OFF 12 volts 0 volts 0 volts 12 volts 12 volts 0 volts Off RUN-engine off 12 volts 0 volts 1-3 volts 12 volts 12 volts 0 volts Illuminated RUN-engine running 13-
15 volts 1/2 battery voltage 13-
15 volts 13-
15 volts 13-
15 volts 0 volts Off
  1. If the customer concern is verified after the initial inspection, refer to the Symptom Chart to determine which tests to carry out.
    • The charging system warning indicator is on with the engine running (the system voltage does not increase)
    • Circuitry.
    • Voltage regulator.
    • Generator.
    • GO to Pinpoint Test B .
    Your whole problem is the alternator is not charging , a couple tests with a volt meter would tell you !

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Need a replacement power supply for a Evernote scanner


Sorry Gregory, gave you the wrong number.
You could try something like this. Various voltages and currents with different adapter plugs. This is on Ebay UK but I would think there are others, don't know where you are.
Ebay item number: 201154296095

Specs:
1.Rated Input Voltage: AC 110V or AC240V
2.Vibration Input Voltage Range: AC95V-265V
3.Input Rated Current: 0.4-0.6AMP
4.Input Power: 90W
5.Efficiency: >88%(TYP)
6.Out Power: 90W
7.Output voltage: 15V/16V/18V/19V/20V/22V/24V(0/+0.5V NOLOAD): DC15V-24V
8.Output voltage: 15V/16V/18V/19V/20V/22V/24V(-0.4/0.5V@rating load): DC15V-24V
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1 Answer

Output voltage adjustment


Output voltage is based on 3600 rpm @ 60Hz. Sounds like your generator is over speeding slightly. Put a Frequency meter on the output of the generator and tune it to 61.5 Hz, that will get your generator in the 3600 RPM range.

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1 Answer

7 hp brigs engine on my generator runs two fast producing 127 volts. how do I slow it down?


Hi and welcome to FixYa. I am Kelly. Since you did not mention the make or model number of your generator I will respond in generic terms. If your generator is at 127 volts with NO load it is adjust at the very top end of the manufacturers limits. There is a 10% tolerance so 120 VAC + 12 is 127 VAC. Under an electrical load above 500 watts the generator should drop the output voltage slightly so your generator would still be within factory limits. Personally on any generator as a repair person; I set the output voltage at 126 VAC no load so that when the user puts the generator to work the output voltage is good. If your generator is running at 127 VAC under load then you can adjust the governor screw on the governor plate CCW about 1/2 turn to drop the voltage. Without a generator model number or engine number I can not tell you exactly where the governor plate is on your engine / generator. The screw will have a lock nut that you must loosen 1/4 turn then turn the adjustment screw CCW to drop the voltage. Just make sure to re-tighten the lock nut when the adjustments are complete. Mind you by decreasing the output voltage you also drop the output freqency at the same time you decrease the output voltage. It is better to have 125 -127 VAC under a no load condition as the more electrical load you add the more voltage drop you will notice. It is best to adjust the generator to 122.5 -123 VAC under a medium load. (50% of output capacity) A bread toaster is 1400 - 1600 watts and is a good load for a 3000 watt generator. Also a good hand held hair dryer will use around 1600 watts. If you use this type of load and the voltage output is 122.5 to 123 VAC I would not adjust anything. I have been working on generators since 1970 so this is nothing new for me. I hope that you understand everything I posted. If not, feel free to ask as many questions as you wish in any future response.
Thanks for choosing FixYa,
Kelly

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4 Answers

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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


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1 Answer

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the instructions says the voltage regulator is automatic/digital. when you check the voltage is there any load on the generator? if applying load to the generator doesn't help, you can manually change the motor speed where the governor connects to the carborator, but it may change the frequency, but the regulator may fix it

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1 Answer

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