The onan vr21 voltage regulator printed circuit board receives generator stator voltage, and by the setting of an external voltage potentiometer, regulates the exciter field of a brushless exciter. The emcp integrated voltage regulator ivr feature is a substitute for todays voltage regulator topology consisting of a dedicated controller cdvr, vr6etc for regulating voltage. Testing a voltage regulator however, when i first switch on the ignition the generator light barely glows. Avr, cat digital voltage regulator, cat digital voltage regulator pc software, caterpillar digital voltage regulator, cdvr, software.
A settings file may also be opened and edited with any text editing software. This is an article showing how a user how can test a voltage regulator to see if it is good or defective. There are many types of automatic voltage regulators. Cdvr caterpillar digital voltage regulator pc software free. Automatic voltage regulators not only vary in size and design, but also in name and description. Renr7941 caterpillar digital voltage regulator cdvr scribd. I assume you mean a voltage regulator which is the heart of a dc power supply. Generator is sr 4 type 600v and engine is cat 3500. We go through only one test, a voltage check of the voltage regulator using the voltmeter of a multimeter. The cdvr shuts off intermittently causing the genset voltage droops. Digital voltage regulatordigital voltage regulator d630.
The emcp 4 internal controller regulates generator output voltage by sending a command to the excitation module. A much greater efficiency can be realized with a switching type of voltage regulator than with the linear types because the transistor switches on and off and dissipates power only when. There is also a company i ran into at powergen last year called mcpherson controls that has a lot of replacement voltage regulators for older generators, i used them for a regulator on an old cat. Caterpillar pc software enables you to print a list of voltage regulator settings, save voltage regulator settings in a file, and open a settings file in order to upload those settings to a voltage regulator. The switching regulator is different because the control element operates as a switch. What is the abbreviation for caterpillar digital voltage regulator. Caterpillar is a build management software software manuals. I use 0 to 30v supply, with a 0 to 3a current limit, it has builtin voltmeter an ampmeter. You could use a large power resistor you have to get a new resistor every time sized for the curre. Renr794105 march 2009specications systems operation testing and adjustingcaterpillar digital voltage regulator. Vintage tractor engineer massey ferguson 35, how to test. Caterpillar generator avr vr6 k6512b k12510b ruitai industry co.
If i had the project to test your voltage regulator, i would hunt down a 030 volt variable power supply with at least a 200 milliampere capacity. Control power for the digital voltage regulator is supplied from an external 24 dcv source. Senr479406 january 2002 systems operation connection diagrams. D so we would use this cdvr free to you to download, connects you with the avr and let you check its performance and fluctuation problems. Enjoy caterpillar digital voltage regulator 3147755 cdvr at diesel engine parts store. Cdvr caterpillar digital voltage regulator pc software. The voltage regulator module provides access to different constant voltages for custom sensors, cameras, or other unique applications.
Now hook a voltage regulator between the b battery terminal on the regulator and the chassis ground. In fact, the jimco setup for testing common chrysler systems substitutes its own solidstate voltage regular in place of the ecm. This is the only test needed to tell whether the regulator is good or not. We installed the vr6 and they are connected as per sketch and tested over the brine tank. Marathondvr2000e software for the palm os platform.
Faulting caterpillar digital voltaje regulator cdvr. Testing and adjusting caterpillar digital voltage regulator cdvr startup procedure smcs 4467 shutdown 1. How to test a voltage regulator learning about electronics. Comparing automatic voltage regulation technologies ust. The digital voltage regulator has the capability to communicate with a personal computer or programmable logic controller. Digital voltage regulator digital voltage regulator. Page 1 instruction manual installation operation maintenance caterpillar generator avr vr6 k6512b k12510b ruitai industry co. Designed for alternators with shunt, arep or pmg excitation, deifs digital voltage controller, dvc 310, is a digital automatic voltage regulator, which monitors and regulates the alternator output voltage. This cover prevents exposure and unintentional contact. This cover must be installed whenever the voltage regulator is energized. C32 power module description may 2006 generatorjoe inc.
The switching regulator is more efficient than the linear series or shunt type. We arent testing the battery, only the voltage from the voltage regulator itself and how it handles low rpm situations. This kit lets you safely test charging systems under normal operating conditions because it bypasses only the external wiring, not the voltage regulator. The resistor serves to limit current in the field connection for test purposes.
High limit the regulator load voltage is not allowed above this setting. Common alternators have internal voltage regulators. Voltage limiting monitors the regulator load voltage to protect customers near the regulator. Cat cdvr digital voltage regulator download free blogger.
Caterpillar generton avr vr6 k65 12b k125 10b source manual. Caterpillar digital voltage regulator cdvr pdf document. Regulador cdvr electric generator electric current. Other cat systems operation testing and adjusting digital. Caterpillar digital voltage regulator cdvr mhh auto. Within this software, voltage regulator settings can be saved in a computer file and used later in order to. Caterpillar digital voltage regulator cdvr introduction and. I know that the plc was made by allen bradley, i want to say it is a 1747 controller, but i would have to double check the documentation to be sure. Refer to the specifications, systems operation, testing and adjusting, renr794108, cat digital voltage regulator for complete information. Software can be downloaded from the service information system sis.
We replaced vr3 voltage regulator with new vr6 regulator. To test your vehicle s voltage regulator, youll need a multimeter, which reads the voltage running through your battery. Connect the positive lead of the power supply to the bat contact on the regulator and the negative lead to the regulator case. Unlike the control box diagram this tractor has a voltage regulator. Thanks a lot if you need other downloads from sisweb let me know via pm and i will post them for you. Caterpillar digital voltage regulator cdvr electric generator. Installation instructions for the new caterpillar digital. This type regulator is ideal for high current applications since less power is dissipated. Sr4 and sr4b generators, voltage regulators, options. Caterpillar digital voltage regulator cdvr introduction and specifications. The automatic voltage regulator avr is a device designed to regulate voltage automatically that is, to take a fluctuating voltage level and turn it into a constant voltage level. Cat digital voltage regulator cdvr pc software v252751501 67 description.
Integrates with caterpillar digital voltage regulator cdvr for alarms and control x x x. For a wiring diagram of manual voltage control see testing and adjusting, wiring diagrams. This manual presents the material in a tutorial format so that you can perform each test yourself, using the connection diagrams provided. All the regulator does is connect the brushes to the supply until some voltage between and 14 volts is reached. The circuit imposes a 250ohm burden on the dc source for current input when a jumper is applied across terminals j15 and j18. Apr 20, 2014 testing and adjusting caterpillar digital voltage regulator cdvr general information smcs 4467 preventative maintenance the only preventive maintenance that is required on the voltage regulator is to periodically check that the connections between the voltage regulator and the system are clean and tight. Cdvr abbreviation stands for caterpillar digital voltage regulator. Refer to the specifications, systems operation, testing and adjusting, renr794108, cat digital voltage regulator, for more thorough information on the cdvr software. Cat digital voltage regulator cdvr pc software v252751501. The user provides further scaling through the windows communica tion software.
Start the powersupply at 12v, the voltage, at the field should be less than 1. Voltage regulator test tool demo demonstration provides a stepbystep walkthrough of the voltage regulator test tool, including setup, parts, software, oscilloscope settings, power delivery assessments of current, and vid measurements. Leroyleroy somersomer installation and maintenance 4900 en. Then, set your multimeter to voltage, and look for a reading of just over 12 volts. Instruction manual for decs200 power systems rentals.
Control power for the digital voltage regulator is. The main purpose of a digital voltage regulator is to regulate the output voltage of a generator that is used with an engine generator set. Caterpillar digital voltage regulator cdvr electric. Voltage regulation in a switching regulator is achieved by the on and off action limiting the amount of current flow based on the varying line and load conditions. Cdvr caterpillar digital voltage regulator pc software,it is software to use for cdvr module programing,and it. Voltage regulator rectifier arctic cat 400 act man 4x4 manual 2004. If you dont then the car wont run since this is where all your battery power comes from. Cat systems operation testing and adjusting digital voltage regulator cdvr page. Caterpillar digital voltage regulator cdvr wiring connections prepared by service training. Caterpillar digital voltage regulator cdvr introduction. Stamford avk dm110 digital excitation control system. The k6512b and k12510b voltage regulators are contained in an encapsulated plastic case. Tapchanger raise operations are inhibited 1 volt below this setting.
Caterpillar diagnostic software auto repair technician home. Also the voltage regulator is mounted in the swich board so it wouldnt be tied into the empc even if the engine had one. The voltage regulator test standard kit is designed to assist you in testing all types of voltage regulators and ldos, individually or as part of a distributed power system. Revisions are listed in reverse chronological order. Caterpillar digital voltage regulator cdvr introduction and specifications prepared by service training. The caterpillar digital voltage regulator cdvr is a microprocessor based voltage regulator. Caterpillar digital voltage regulator cdvr pass in pm only thanks and rep password dude you are the best. When the dvr2000e voltage regulator is mounted on the generator at the. Replacement vr3 regulator with vr6 cr4 discussion thread. Standby 3000 kva 2400 ekw 50 hz 1500 rpm 11,000 volts. Reviews 0 the caterpillar digital voltage regulator cdvr is a microprocessor based control designed to provide precise voltage control, robust transient response, and generator protection with industry leading features and versatility. Caterpillar cat cdvr digital voltage regulator 3147755. When you have one, attach the multimeters clamps to your vehicles battery.
It requires a variable voltage power supply, voltmeter, and a 50 ohm resistor. Preliminary emcp integrated voltage regulator implementation. Cdvr caterpillar digital voltage regulator pc software,it is software to use for cdvr module programing,and it is a microprocessor based control designed to provide precise voltage control, robust transient response, and generator protection with. Cdvr caterpillar digital voltage regulator pc software,it is software to use for cdvr module programing,and it is a microprocessor based control designed to provide precise voltage control, robust transient response, and generator protection with industry leading features and versatility.
It used to be as bright as the oil light, then the neutral light would come on bright as can be when i clicked the run button preparing to start. Testing and adjusting caterpillar digital voltage regulator cdvr general information smcs 4467 preventative maintenance the only preventive maintenance that is required on the voltage regulator is to periodically check that the connections between the voltage regulator and the system are clean and tight. The corresponding revisions made to this instruction manual 9360100990 are also summarized. The j4 connector of the digital voltage regulator provides an rs232 port necessary for communication. The voltage point where the f goes high is the voltage where the regulator regulates. Use caution when working around the component side of the dvr. Voltage regulators free delivery possible on eligible purchases. Expect the voltage to be near the higher end of the scale for cold engines and the lower end of the scale for hot engines.