The principle of the robotic electronic circuit of the resant saї220. Repair of Resanta stabilizers - subtle recommendations

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Principal diagram of the loading apparatus, RESANTA SAI 220. Technical description, characteristic of the charging inverter. Faults during the repair of the device, Pay the fee. Get a scheme

Repair of power inverters.

Zvaryuvalnі іnvertori garantirovat its maximum capacity zvaryuvannya and insane comfort and stable work for Zvarniki. Ale tsі perevag reach, metoyu more collapsible design. І - no matter what the converters of the inverters said there - less factually equal to the right-handed ones - transformers and straighteners.

On vіdminu i rіznіtі, zvaryuvalny transformer, which is basically an electrical engineering elektrovirobom, zvaryuvalny іnvertor vіdobrazhaє elektronny pristriy. What does it mean, diagnostics and repair of power inverters. Re-verification of the practicality of transistors, power diodes, resistors, pulse transformers, stabilizer and other elements, including important circuits. It is necessary to use a multimeter, an oscilloscope, without seeming already about voltmeters and other vimiruvalny equipment.

The specifics of the repair of inverters Those who, in rich ways, show up, due to the nature of the malfunction of the components, which are in harmony, it is not easy, but it is impossible to start. It is necessary to review in sequence all the higher education institutions and elements wiring diagram. From the last overhauled thing, that a successful repair of the inverter with its own independent forces is only possible in that case. Yakshcho є wanting to be a beginner in electronics and the least dosvіd work with electrical wiring diagrams. In a different situation, do-it-yourself repairs can turn out to be more than a waste of time and strength.

І oskolki installed ale, the principle of robotic charging inverter influences the primary converted electrical voltage:
Vibration of the string struma - for the help of the forceful inlet vibrators.
The transformation of the rectified constant voltage goes into the inverter module, it will be absorbed and generated in a high frequency pulse. reduced constant voltageі struma to zvaryuvalny - processed by a power high-frequency transformer. Vіdpovіdno before vikonuvanih operations, zvaryuvalny іvvertor constructively folded from a number of electronic modules. The main ones include the input rectifier module, the output rectifier module and the circuit board with transistor keys.

At this article, we will tell you about your dosvid for the repair of an electromechanical voltage stabilizer Resanta asn-20000/3rd, zovnіshnіy vglyad ya shown zlіva.

As a practical voltage stabilizer, I have already identified those stabilizers in the articles. Whom to click hot meals for choice, connection and various adjustments - I ask you to go for these messages.

I think that you undertook to repair the stabilizer and went to the right side, the principle is good for you.

Warehouse parts of three-phase Resanti ASN

First, proceed to the repair of the voltage stabilizer, we will briefly look at the back of what is folded and how our box is built.

Also, as I already said in the front article about three-phase stabilizers, a three-phase stabilizer is three single-phase. So itself and z Resanta asn-20000 / 3-em:

Three-phase electromechanical stabilizer

It can be seen that this stabilizer is made up of three identical parts - from three single-phase stabilizers, the skin of which stabilizes only its own phase. Cost of such wide single-phase models, yak ASN 10000 1 eat that in.

So, if there will be a significant peroxide of phase voltages at the input, then at the output for all phases there will be 220 + -3%. You can read a report about the parameters of such stabilizers in the instructions, as you can take advantage of the statistics.
And as a result, peroxide of phases became the result of shaving zero, about the last of which. A three-phase stabilizer will correct the situation to the singing world, but if it doesn’t work, it will turn on that vryatuy spozhivacha.
Autotransformer
The heart of an electromechanical transformer is the autotransformer that drives it. Tse "heart" beats at the beat from the change of voltage at the input of the stabilizer, trying to turn it up to the norm.

Autotransformer drives the heart of the electromechanical stabilizer
Why is the autotransformer victorious, which is moving up, and not lowering? That is why the stabilizers are most often brought to the mother on the right with a reduced input voltage. Ale ce does not mean obviously that the vin cannot reduce the input voltage increase. Vtіm, I can’t describe the principles of autotransformer operation here.
Let's take a look at the attachment of the stabilizer on the next photo:

Vlastuvannya stabilizer with explanations
First, you need to get it - the autotransformer is made up of two equal parts, which are connected in parallel with the increase in tension. Obviously, there are two windings, they are used for two shields (the shield is not visible in the photo, it is indicated by an arrow).
Shards of the shield - the same contact, moreover, dosing out the filth, you get warm. Tse is normal, but for її cooling, a radiator was transferred. At the radiator shield, there is a thermal sensor, which, when the permissible temperature is exceeded (105 ° C), switches off the control lance and switches on the direction of the stabilizer output.
The motor moves the shields on the surface of the winding, changing the voltage. At the end of the course, the shield, which provides the least voltage (140 V), is installed end vimikachi, which zupinyat dvigun. The most comfortable mode of operation, the shards of the stabilizer are strained at their own fall. If the voltage drops and is applied, then the autotransformer can no longer cope, and the entire stabilizer flickers. The price depends on the opening of the contacts of the relay KL (div. the principle of the diagram below).

There is a temperature sensor on the transformer case, which, when overheated at 125 ° C, releases a control lance, in order to avoid further thermal ruminating.
Offending types of sensors are self-reinforcing. Tobto, before the hour of reaching the control lance is picked up, and the stabilizer is ready to work again.
Electronic board
Why is the motor of the autotransformer vibrating? Tse electronic circuit, how do you change the input phase voltage, which shows the voltage on the servomotor, which collapses the autotransformer shield, changing the voltage on the output to the required level:

On the pointed photo you can see the traces of common faults - the trials of bipolar power transistors through which the engine is controlled. At the same time, resistors burn out at the same time with them, as they may have a power of 2W, or replace them with 5W. Ale z malfunctions and repairs - for example, statistics.
This launcher is necessary for the shutdown (inclusion) of the stabilizer and the vanishing in case of unavailability, malfunction or overheating.

Let's take a closer look at the report when analyzing an important electrical circuit.
Electric circuit of the three-phase voltage stabilizer Resant
Let's take a look at the scheme of the single-phase electromechanical stabilizer Resant ASN - 10000/1-EM. Let's take this circuit, shards, as I showed three single-phase - all one three-phase stabilizer.
The scheme, as always, can be zoomed in, and then increased to 100% by clicking on the arrows in the lower right corner of the image. Let's press the bear with the right button, Save the picture like that, etc.
How to rozdrukuvati such a great scheme - obov'yazkovo oznayomtesya.
Having downloaded the scheme on the Internet, the author, I see it!

Scheme of electrical voltage stabilizer Resanta-ASN-10000-1-em
For clarity, I have marked the main structural parts on the diagram.
I won’t look at the electronics robot again, for whom it’s okay - ask in the comments.
Now we are reviewing this scheme of schemes three-phase stabilizer:
The head of the mind is in the control lancer. In the single-phase version (on the diagram) it can be seen that the control switch for the life of the KM starter is selected as follows: Neutral - KL shutdown relay - Transformer thermal relay 1 (125 ° C) - Transformer thermal relay 2 (125 ° C) - Shield thermal relay 1 (105 ° C) - Thermal switch of the shield 2 (105 ° C). Together - 5 contacts. Whenever this lance is selected, the KM contactor is switched on, and the voltage is on the output of the stabilizer.
In the three-phase version, in order for the stabilizer to start up, it is necessary to switch 15 (!) Minds - the contact styles themselves can be closed, so that the KM contactor is switched on.
During normal operation, with the stabilizer turned on, you can feel how the KC is selected - after about 10 seconds, a clatter (on one of the electronic boards), then one more, and a third clatter starts the contactor and the entire stabilizer.
What is the control lancet, yoga control over the emergency and thermal lancets, and why the repair of any serious automation needs to be started from rechecking the control lancet - it was reportedly painted, I recommend it, I have read it up to the month)

Another - the presence of a cooling fan, at times the cooling is natural.
The third one is the connection to the bypass, which is the implementation of the installation of a three-pole contactor with normally closed contacts (or two primary contactors), but the road is satisfied, so the wizard was without it.
About this problem, I also write to the booth through the AVR.
Repair of electromechanical voltage stabilizers
The main problem of such stabilizers is overheating. As a whole, it is necessary once for 1-2 months, fallow due to the minds of exploitation, labor technical service stabilizer. І repair of voltage stabilizers requires repair itself.
The problem of overheating manifests itself in front of us through those that the graphite shield, if it collapses on the surface of the transformer, inevitably wears out, and її parts at once from the saw and other smitty are left on the contact road.
Now, if the shield constantly “crawls” on the surface, it starts to heat up more strongly, sparkle, burn and burn to the middle surface. Nadalі tsey negative effect avalanche-like zbіshuvatimeetsya, and yakscho do not get used zahodіv, reach unreturned between, if purge is no longer help.
Obviously, the situation is assessed by thermal sensors - the first "pins". As soon as the stabilizer starts to mimic “itself”, it is necessary to call a specialist and clean the surface.
The axis of the surface of the transformer in to a happy state, after three years of work for 8 years per day:

On top - Zadovilno. І tse - after washing with alcohol.
And the axis to what can bring Baiduzhist to become a stabilizer. Same stabilizer, other phase:

Surface mill - Too bad
In order to clean up this soot, the area of the cut of the dart will permanently change by 20-30%, which will increase the heating of the dart and the shield, and bring to the above-described pessimistic processes:

Close to the top of the autotransformer. Isolation of the drotu vigorila, it is possible to intermittent zamikannya. The epoxy was also damaged by overheating.
Here, the “null” sandpaper is more helpful. Clean it along the brush, then thoroughly rinse it with alcohol and wipe it dry with a clean ganchirka.
Servo motor repair
Another breakdown is the malfunction of the servomotor, if the screws stop collapsing the shield. The engine needs to be removed, cleaned, blown, cleaned. Shards of vikoristovuetsya dvigun fast strumu with shields, you can try to twist them at idle in the offending sides in front of the jerelle of the fast struma with a strong force close to 5 W.
In this rank, without deciphering yogo, clean the trochs of the yogo shields, even if the motor of the robot is spinning (more precisely, turning) only a little bit up to 180 degrees.
Electronic payment repair
The engine can spin and the one who doesn’t eat food on it. Eating ide vіd bipolar transistors. A pair of complementary transistors TIP41C and TIP42C are victorious, the fragments of the living circuit are bipolar. Transistors need to be changed in pairs, so that they will be one whole. I have less than one virobnik.
The datasheet (documentation) for the transistors can be obtained from the statistics.

Also, 10 ohm resistors burn out in addition to the lances (this is the result of the breakdown of transistors). Nothing matters when replacing resistors to increase the power intensity up to 3 or 5 W, increasing the work efficiency.
Well, the replacement of relays, transistors, switches, and other drib'yazku - whatever the situation.
Power unit repair
Autotransformers are visible to the power part (I already have enough about them). And also a contactor and an automatic machine, in which contacts and terminals are lit. It is necessary to periodically stretch, clean, and, if necessary, change.
Propositions about modernization
As the voltage fluctuates approximately in one narrow range, and on this distance the path of the transformer burned out (like on the rest of the photo), proponing change the scheme, so that the shield “went out” to another business. For this requirement, re-solder the winding from the lower end of the winding (N) to a sprat of turns higher (div. scheme). Well, on both parts of the autotransformer. As a result - a shield of kovzatim along the other, most clearly clean part of the path. The minus of this solution is the sound of the regulation range.
The second option to solve the problem is to buy new transformers, which is not economically efficient - after three years of work, it is better to buy a new stabilizer.
Otherwise, install a 12 V cooler (fan) on the skin transformer, which would blow on the shields. Ideally, there are 6 fans. The stench is literally blowing powder. It is worth continuing the term of the stabilizer service.
And how do you repair such stabilizers? I check for constructive criticism and exchange dosvidom in the comments.
Video about repair
Below is a video that describes the principle of work, re-verification and repair of an electromechanical stabilizer.
Get files
Yak i obіtsyav - instructions for the stabilizer and documentation for transistors. As a rule, everything is taken care of for me freely and without borders.
/ Three-phase electromechanical stabilizers snake struma Resant. Technical description, passport and operating instructions., pdf, 386.75 kB, downloaded: 1473 times/
/ Technical description of transistors for Resant stabilizers, pdf, 252.13 kB, downloaded: 1336 times/
Yakshcho You need to bring a stabilizer,. Low price, consultation, delivery (in Russia), installation (Taganrog).

As if at my hand, having consumed the Resant SAI 250PN charging inverter. The apparatus, without a doubt, instills a pogee. Those who are familiar with the attachment of brewing inverters, evaluate all the pressure old-fashioned look electronic stuffing.

As it happened earlier, the stuffing of the charging inverter is covered by a great strain. Tse can be seen from the power unit I will add.

At the entrance of the rectifier there are two thick diodes on the radiator, and there are electric capacitors at the filter. The external vipryamlyach is also completed according to the following: 6 double diodes, a massive throttle on the vipryamlyach exit,...

three ( ! ) relay soft start. Your contacts are made in parallel, so that you can see the great streak of the strum when you start the brewing.

Yakshcho porivnyat tsyu Resanta (Resanta SAI-250PN) and TELWIN Force 165, then Resanta give you a dashing head start.

Ale navіt tsgogo monster є Achilles heel.

Faults detected:

The device does not turn on;
The cold cooler is not working;
There is no indication on the care panel.

After a quick glance, it was clear that inlet vipryamlyach(dіodnі bridges) turned out to be correct, at the output it was close to 310 volts. Otzhe, the problem is over the power unit, and the Lantsyug management.

An ominous glance revealed three blown SMD resistors. One at the lantsyugu shutter field effect transistor 4N90C at 47 Ohm (marking - 470 ), and two at 2.4 ohms ( 2R4) - connected in parallel - on the cob of the same transistor.

Transistor 4N90C ( FQP4N90C) to be handled by a microcircuit UC3842BN. Tsya microcircuit - the heart of the impulse block of life, which feeds the soft starter relay integrated stabilizer at +15V. Vіn have their own line to live the whole circuit, as keruє key transistors in the inverter. Axis shmatochok scheme Resanta SAI-250PN.

It also turned out that in the shaving resistor of the lanczyuz live Shi-controller UC3842BN (U1). On the diagram of the wines of designations, yak R010 ( 22 ohm, 2W). On the board, the position may be R041. In advance, it’s important to reveal the urvish of this resistor when looking around. The crack that characteristic pits can be on the other side of the resistor, which is severed to the point. So it was in my mind.

For everything, the cause of the malfunction was the out of tune of the UC3842BN (U1) SHI controller. This led to a slow down strum, and the resistor R010 burned out due to a sharp pressure. The SMD resistors in the lances of the FQP4N90C MOSFET transistor played the role of a fusible protector and, better for everything, the transistor was left untouched.

Yak bachimo, wiyshov z fret ciliy impulse block live on UC3842BN (U1). And to live all the main blocks of the charging inverter. In addition, a soft start relay. To that zvaryuvannya and did not give the annual "sign of life."

As a result, you can buy a bunch of "dribnichki", so you need to replace it in order to get the unit.

After replacing the indicated elements, the charging inverter turned up, the display showed the value of the installed stream, squeezing the cold cooler.

Tim, whoever wants to independently install the attachment of the charging inverter - povna principle diagram"Resanta SAI-250PN".

Zavantageity (1.64 Mb)

three ( ! ) relay soft start. Your contacts are made in parallel, so that you can see the great streak of the strum when you start the brewing.

Yakshcho porivnyat tsyu Resanta (Resanta SAI-250PN) and TELWIN Force 165, then Resanta give you a dashing head start.

Ale navіt tsgogo monster є Achilles heel.

Faults detected:

The device does not turn on;
The cold cooler is not working;
There is no indication on the care panel.

After a closer look, it turned out that the inlet vipryamlyach (diode bridges) turned out to be correct, the output was close to 310 volts. Otzhe, the problem is over the power unit, and the Lantsyug management.

An ominous glance revealed three blown SMD resistors. One in the gate of the field-effect transistor 4N90C at 47 ohms (marking - 470 ), and two at 2.4 ohms ( 2R4) - connected in parallel - on the cob of the same transistor.

Transistor 4N90C ( FQP4N90C) to be handled by a microcircuit UC3842BN. This microcircuit is the heart of the impulse block of life, which sets the soft start relay and the integrated stabilizer for + 15V. Vіn have their own line to live the whole circuit, as keruє key transistors in the inverter. Axis shmatochok scheme Resanta SAI-250PN.

For everything, the cause of the malfunction was the out of tune of the UC3842BN (U1) SHI controller. Tse own line has led to an increase in the slowed down stream, and the resistor R010 has burned out in the face of a sharp pressure. The SMD resistors in the lances of the FQP4N90C MOSFET transistor played the role of a fusible protector and, better for everything, the transistor was left untouched.

Yak bachimo, wiyshov іz fret cіliy іmpulsny live block on UC3842BN (U1). And to live all the main blocks of the charging inverter. In addition, a soft start relay. To that, zvaryuvannya and did not give a living sign of life.

As a result, you can buy a bunch of "dribnichki", so you need to replace it in order to get the unit.

After replacing the indicated elements, the charging inverter turned up, the display showed the value of the installed stream, squeezing the cold cooler.

Tim, who wants to independently install the attachment of the power inverter - the basic principle of the "Resanta SAI-250PN" scheme.