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Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMS
Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMSHow to solve the double girder gantry crane leak phenomenon?
Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMSDouble beam gantry reducer oil mainly has three points: one is due to the unreasonable design, such as air holes or air holes is too small, no design reduce the external pressure and internal pressure can't balance, cause leakage of lubricating oil.
In order to prevent speed reducer leakage, design should be improved, observation hole cover and refueling speed reducer as adding cover ventilation device, ensure casing pressure inside and outside equilibrium flow smooth.
In addition to do maintenance work regularly check and clean up, reducer hole, oil amount, appropriate maintenance subdivision surface, serious deformation.

 

Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMSGeneral bridge gantry crane operation procedures
Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMS1、Crane operation and maintenance procedures
(1) the operator must be familiar with the structure and properties of the crane, the examination to obtain the special type of work operation certificate, can independent operation, and shall comply with the safety regulations.
(2) according to the regulations of the lubrication and sufficient lubrication oil, fuel will after tank, oil cup lid.
(3) every shift to start the former must carry out the following checks:
(1) hook head, pulley with and without defects;
(2) the wire rope is in good condition, whether fixed firmly on the drum, with or without bath phenomenon;
(3) crane, trolley and lifting mechanism of system is safe and reliable;
(4) the transmission mechanism is normal, the safety switch is sensitive and reliable, the ceiling and large car limit is normal;
(5) the operation there is no sound of driving.
If discover defects or abnormal phenomenon, should promptly adjust and maintenance, shall not compromise.
(4) Before driving, all controller should be handle to zero, shut the doors and Windows, ring warning rear can drive a car.
(5) The car shall be smooth, and by retaining acceleration: the lifting mechanism of each file conversion time can be controlled in 1-2 seconds; Each file conversion time of running mechanism should not be less than 3 seconds; Driving gears of big lifting weight conversion time should be in 6 to 18 seconds, depending on the weight, it is forbidden to high-grade started.
(6) Prohibit overheating specification used cranes, must comply with the hoisting machinery safety management regulations, the provisions of the "ten don't hanging".
(7) Per shift every time when lifting heavy objects (or in the load reaches maximum weight), the height should be hung from 0. 5 m, after will weight down, to check the performance of the brake, normal operation of the reentry after confirmation and reliable.
(8) Manipulation of the controller, it must be according to the grade, to protect the smooth suspended substance, no lifting hook rotates, prevent the wire rope out of the groove.
(9) Towards the end of the big, the car driving should reduce speed, it is forbidden to use terminal switch as a means of parking, also not allowed to use the car brake.
(10) The operator in the operation, should be in accordance with the provisions, and ring the alarm for the following operations:
(1) heavy lifting, landing, when to start the big, the car driving;
(2) crane running in the line of sight is not clear, to continuous ring alarm;
(3) crane traveling close to cross inside another crane;
(4) when lifting heavy objects close to the staff.
(11) Prohibited from crane on for a long time to stay in the air.Crane weight, the operator and hang rope shall not leave work at will.
(12) Operation of the crane, ban staff from top to bottom, in orbit or walk to walk on stage, or to engage in maintenance.(13) has two hook of the crane, in the main, deputy clasps in time and two highly similar, have to work alone, to avoid a collision of two hooks.
(14) Two crane hook is allowed to hook hanging two items at the same time, don't hook must ascend to close to the limit position of working height, hanging wire rope is not allowed on the hook.
(15) Within the span more than one crane work, must be 1. 5 m distance, in case of collision. Work needs to be approached, should be subject to consent by the adjacent machine, but the minimum distance should be > 0. 3 m.
(16) Two cranes with lifting a weight is prohibited. In special cases need two with crane, safety measures should be taken, and shall not exceed the load for each crane, and by the motor division or chief engineer at the scene command, before lifting.
(17) Transformation direction in normal work, the controller must be pull to "zero", when the safety stop running after reversing driving.
(18) Electrical various protection devices must be kept in good condition, not allowed to adjust and change.
(19) Work, brake, bearing and electrical parts are overheating, different sound or abnormal phenomenon, the controller should be handle to the "zero", immediately cut off the power and for maintenance.
(20) Open operation of the crane, when wind > 6 class or in the rain should stop working .Does not work when the crane must be open to the specified location to park, and fixed in a reliable way.
(21) If there is disk system, grab crane, but also should observe the following provisions:
a. using a disk or grab at work, must ensure that the cable and wire rope movement speed, may not to rotate the disks, grab, so as to avoid accidents each cable and wire rope winding;
b. no electricity disk lifting temperature above 200 ℃ artifacts;
c. using a clamshell, not allowed to grab the whole thing, avoid slipping in lifting;
d. when found the residual magnetic electric disk (cut off the power after the part weight not divorced from disk), should be shut down for maintenance.
(22) Lifting operation has been completed, the crane to the designated place, the car drove up to the cab, hook, all control to "zero", to cut off the power supply, and cleaning brush try, keep it clean.And to do a good job of running records on duty and exchange.
Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMS
2、Construction process strictly abide by the principle of "ten don't hang" of hoisting machinery
(1) the signal conductor unknown not hanging;
(2) suspension hang on no hanging;
(3) no hanging suspended weight unknown or overload;
(4) strapping not firm or material pass with no hanging;
(5) suspended on someone not mourn;
(6) unknown underground objects are not allowed to hang;
(7) safety device failure or being not mourn;
(8) the dark can't see placement are not allowed to hang the suspended matter;
(9) blade edges without protective measures are not allowed to direct contact with steel wire rope hanging; no hanging
(10) more than six levels of strong winds.

 

Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMSDouble beam gantry crane brake common troubleshooting methods
Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMSDouble beam gantry crane brake is an important part of the safety components, its main functions is to prevent "whereabouts, etc. The normal brake can gantry crane have good protection effect.
Brake wheel can not have defects and cracks. In use process, if there is more than 2 mm on the surface of the brake wheel dents or scratches, the brake wheel should be processed according to the standard.
Brake arm, plunger, frame rod, such as the main auxiliary spring should not have permanent deformation or cracks. Anchor bolt, lock nut and lock pieces are there should be no damage or loss.

 

Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMSSafety Notes of Using Wire Rope Electric Hoist
Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMS1. Check the hoisting wire rope electric hoist, center conductive device, smooth line, transformer and motor wire connection is correct, and check whether the ground is good.
2. Please don't lifting more than the rated load, the rated load on the hook plate has mark. Oxygen, acetylene used and stored in strict accordance with the safety rules, stick to do safety construction, do work wrist is expected to do site.
3. Before the use of electric hoist, please make sure the brake is reliable before use.

 

Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMSCrane Work Level Introduction and Analysis
Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMSThe level of job of crane according to crane use hierarchies and load state, in other words, the level of job of crane shows crane work heavy degree of parameters, namely that crane work busy degree on time and in the aspect of hoisting load parameters.
Job level is the characterization of crane features an important concept. The dividing principle is based on the life of the crane standard, under the condition of the load, the frequency of different, have the same life of the crane at the same level. Is the purpose of the work division level for design, manufacture and users to choose between reasonable and unified technical basis and the reference standard, thus make better effect on safety and economy, make the working status of crane is an accurate reflection of.
Crane work level and on the basis of an important relationship between crane safety is the security check, accident analysis and calculation, and determine the parts scrap the basis of the standard.In general, the work level is different, safety factor is different, scrap standard is also different.
Crane work level, level and crane crane metal structure work work level there is a difference between, we will be discussed separately below.

Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMS

The crane working level
Crane use level is the use of the crane during the entire design life how often, according to the design life period general work cycles were divided into 10 U0 ~ U9 level; Is the status of the crane load show that the degree of the weight of the crane load index, according to the nominal load spectrum coefficient is divided into light, medium, heavy and heavy level 4.Consider using level and load condition, according to the diagonal principle, crane work are divided into 8 magnitude of A1 ~ A8.
 
1.1 Crane use level: use level characterization of the use of the crane during the entire design life how often, according to the design life period general work cycle number N is divided into ten levels.
work grade

work grade

General work cycles

Notes

U0

1.6﹡104

Don't use often

U1

2.2﹡104

U2

3.3﹡104

U3

1.25﹡105

U4

2.5﹡105

Often at leisure use

U5

5﹡105

Often secondary use

U6

1﹡106

Don't always busy use

U7

U8

U9

2﹡106

4﹡106

﹥4﹡106

Busy use

 
1.2 Crane load condition
Load condition indicates that the weight of the crane load, is associated with two factors, namely the hoisting of the load and the ratio of the rated load Pi/Pmax and the role of various hoisting load number and the ratio of the work cycle times ni/N.Said the two relations of load spectrum coefficient Kp calculated by type:Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMS
 
Kp— Load spectrum coefficient; ni— The role pi of the load; The overall project cycle times;
Pi— The ith a hoisting load; Pmax— m— index, m=3;
Coefficient of crane load status in nominal load spectrum is divided into four levels (see table below)

Load state

Nominal load spectrum coefficient Kp

notes

Q1—light

0.125

Few hoisting load rating, general hoisting load

Q2—medium

0.25

Sometimes hoisting load rating, general lifting medium load

Q3—heavy

0.5

Often hoisting load rating, general lifting heavier load

Q4—super heavy

1.0

Frequent lifting rated load

 

1.3 Crane work level diagonal form

Load state

Nominal load spectrum coefficient Kp

work grade

U0

U1

U2

U3

U4

U5

U6

U7

U8

U9

Q1—light

0.125

 

 

A1

A2

A3

A4

A5

A6

A7

A8

Q2—medium

0.25

 

A1

A2

A3

A4

A5

A6

A7

A8

 

Q3—heavy

0.5

A1

A2

A3

A4

A5

A6

A7

A8

 

 

Q4—super heavy

1.0

A2

A3

A4

A5

A6

A7

A8

 

 

 

 
2.Crane agencies working level
Here, you need to first pointed out that the crane work level and the weight of the crane is two different concepts. Lifting weight refers to a single by lifting the quality of the material, comprehensive work level is crane work characteristic parameters. Lifting weight big, work level is not high; Small lifting weight, low level of work may not. With the types of cranes, even within the same weight as long as the work level is different, the safety factor of the parts is not the same. If only see lifting tonnage and ignores the work level, low level of the crane is frequent, full use of the work, then can accelerate the vulnerable parts scrap, make frequent failure, and even cause accidents.
In addition to note, crane and the structure of the metal work level and work level is different. Work for the same crane, due to the various agencies at the inconsistencies and working range of load, even the same crane, different organizations working level and crane work level is often inconsistent, in the different institutions to be especially careful when scrap and update the parts.
 
3、Crane work level commonly used, for example

crane type

work grade

bridge crane

hook type

Power station installation and maintenance

A1~A3

Workshop and warehouse

A3~A5

Heavy work with workshop and warehouse

A6~A7

grab type

Discontinuous cargo

A6~A7

The continuous loading and unloading

A18

metallurgy type

Hanging container

A7~A8

material adding

A8

casting

A6~A8

forging

A7~A8

quenching

A8

Pliers, stripping

A8

uncovering

A7~A8

Electromagnet type

A7~A8

gantry crane

General use hook

A5~A6

Loading and unloading with the grab bucket

A7~A8

Shipbuilding mounting hook type

A2~A3

Loading and unloading of containers used

A4~A5

Loading and unloading of containers used用

A6~A8

gantry portal crane

Installed with hook type

A3~A5

Cargo hook type

A6~A7

Cargo grab type

A7~A8

tower crane

General construction and installation

A2~A4

With bucket loading and unloading of concrete

A4~A6


Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMSTranslation agency problem - run out of sync

Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMSFault features: start or runtime cart twist or swinging forward, signs or cart wheels have climb track at runtime.
phenomenon a, Cart sync startup, and run time synchronization:
The cause of the problem: this phenomenon is caused by failure of electric exist, such as internal loose broken wire, resistance wire, resistor controller such as the control points of damage.
 
Measures:
1, After resistor wire break, if broken wires to a lesser degree, can be welded together, if not good together, should replace the resistor, if there is no problem, resistor type selection of resistance wire is not easily broken, so after processed, should conduct a comprehensive inspection, such as a resistor line is wrong, whether often play with the parking brake on operation and increase calorific value, and the use of the site condition is far more than the crane work, etc.
2, loose resistance wire should be tightened, and the other circuit wiring to conduct a comprehensive inspection fastening.
3, the controller the control points of damage, should be replaced in a timely manner.
Reason: this phenomenon may be caused by electrical failure, such as stator, rotor core cable break loose, lack of phase, bolts, motor damage, also could be the result of a mechanical fault, such as end bearing damage resistance increase, or end of the driving mechanism of couplings, both inside and outside gear worn for lack of oil and cause can't drive, is not the same as the reducer ratio, or two motor size is different and nameplate wrong into, for triad reducer, motor and reducer is not the same as the connection between gear teeth, etc.
 
The solution:
1, the first to know this car is just installed car or a used car for a period of time, if it is used for a period of time of car, what time is to understand the failure occurred.
2, if it is just installed car, in many cases is wrong wiring circuit, should first check the resistor circuit, if the electric circuit are no problem, to check the mechanical aspects, the first measured two motor, the rotor current, if the error is obvious, can judge the motor have quality problem, or is not the same type of motor and the nameplate put into the same. If the motor is no problem, then can check reducer ratio. Second, the speed reducer for triad to check the connection between the motor and reducer gear teeth is the same.
3, if you use a period of time the car and not happen before the fault, then check whether the voice of the driving mechanism is normal, whether the bearing damage, couplings, both inside and outside gear is worn out. Electrical aspects should check the stator, rotor, lack of phase, loose connection, cable fault core and corresponding processing.
Improvement measures: for product itself quality problem, the company should strengthen quality management, for the problems in the installation and use, suggest to hire a qualified installation team for installation, for use in the process of problems, recommend the use of units to strengthen the use of maintenance routine work.

Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMS

 
The car "three legs"
Fault features: the wheels in a partial or full orbit wheels, will cause the car starts in orbit twist, skid or parking torsional pendulum, is easy to cause the car drive shaft twist off, prompting wheel gnawing rail, flange, such as car derailment.
The cause of the problem:
(1), the car when the production assembly, small wheel is not in a plane, can cause the car to the three legs.
(2), 1 in 4 wheels have wheel diameter is too small.
(3), have taken place in the car for deformation, such as transportation by collision, don't slow down while driving to the limit, often by stop the impact of parking.
(4), transportation, hoisting, long-term overload operation or use conditions (such as workshop has a great deal of heat and the bottom of the main girder without insulation board, lead to uneven deformation of two main girder is heated, causing cart girder deformation), resulting in two orbit with a larger difference of main girder or orbit curve does not agree, will cause the car local three legs; The car three legs can lead to startup torsion.
 
Measures:
(1), car "" three legs all the way, if the active wheels height h, can adjust the diagonal of the driven wheel, the driven wheel place with one thousand jins bumps on the round Angle of inside and outside box and horizontal Angle box plus h about thickness adjusting pad; If from the pulley impending, jacking directly to the driven wheel in the wheel Angle of inside and outside box and horizontal Angle box and adjusting pad can;If the wheels and larger dangling, should increase steel plate between the keypad and bending plate, and the keypad, steel plate with the plate welding.
(2) the local "three legs, the car, should adjust the height of the local rail car, can be adjusted in low orbit mat mat is ok.It is important to note that as far as possible to use polishing machine grinding rail clips, avoid or reduce the girder is heated with gas cutting cut clamp and deformation caused by girder camber is reduced.
(3), if the diameter is small, if it is active wheel, wheel is replaced. If the passive wheels when the Angle of bearing box level add gasket groove.

Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMSElectric single-girder crane operation procedures
Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMSThe first: every one of the following circumstances hoisting machinery, it is prohibited to use.
1, the steel wire rope to scrap standard.
2, hook, pulley, drum to scrap standard.
3, brake braking torque of brake not rated load.
4, limit switch failure.
5, the main mechanical parts have crack, open welding.
6, main girder elastic deformation or permanent deformation than repair boundaries.
7, the wheel crack, drop, serious gnaw rail or "three legs."
8, electrical zero protect affiliated lost or insulation can not meet the specified value.
9, the motor temperature rise more than the specified value.
10 and rotor resistance, a phase.
11, bus (except for inspection, repairs and assign a command when).After
12, new installation, modification, overhaul experience not qualified.
13, rail crane beam is loose, broken, broken objects, at the end of a gear failure.
 
Article 2: electric single-girder crane operation procedures:
1, before the operation must be:
(1) the succession or refer to the hand-over records to understand the status of the equipment.
(2) check the steel wire rope, hook, hook and electrical parts.
(3) to observe the car without the things falling may loose fasteners ever, empty and test.
 
1, the operation of:
(1) must be kept in steel wire rope winding, right out of the groove disorderly volume occur immediately after falling principle is lifting.
(2) when lifting objects prohibited from across the head and equipment.
(3) the same track across more than two cranes are not allowed to push and pull when collision.
(4) found that one of the first case should stop.
(5) work should be all the controller handles back when suddenly loses power zero before back to work should check whether the crane operation is normal 
 
1, do after operation:
(1) to hook up to a certain height, cart parked in the designated position, the controller handles placed in the "zero";Pull the knife switches, cut off power supply;
(2) for routine maintenance;
(3) to do a good job of succession.
 
4, operating strictly enforce the "ten don't hang"
(1) more than the rated load not hanging.
(2) the command signal is unknown; Weight is unknown; Light is not hanging.
(3) sling and accessories bundles, not meet safety requirements not hanging.
(4) hanging heavy process directly without hanging.
(5) slanting pull don't hang on hang.
(6) artifacts stand or float allowing flexibility animals don't hang on.
(7) 6. Flammable items not hanging.
(8) All landowners with edges faster mouth hanging objects without cushion.
(9) Was buried objects not hanging.
(10) Pet-name ruby cadres illegal orders not hanging.
5, in the operation should always be steady, steady, steady, in or close to the person must be timely pick up neighbor ringing the bell alarm or prompt each other.
6, runtime, signal parking shall immediately stop to anybody.
7, take turn, swim, DouFan operation should be in a safe place.
8, lifting heavy objects, running distance not more than 0.5 meters off the ground.
9, lifting is close to the rated load, should be checked to 100 mm high parking brake.
10, in the process of lifting and should not be at the same time operating three institutions.
11, under normal circumstances are not allowed to hit the car.
12, it is forbidden to use two different lifting weight of crane crane one content.With two equal crane with a lifting capacity when, take makes the crane can keep vertical lifting measures, the hanging weight of sling weight of no more than the sum of two sets of crane hoisting capacity 80% of the total. And the chief engineer or his appointed personnel present command, to lifting.
13, the car are not allowed to be stacked activities or other items, tools should be fixed.
14 and the same across orbit above two cranes, mustn't push each other collision.
15, the hook does not load the runtime should be risen to more than one person.
16, after treatment failure or out of the car, the controller must be put in "0" position to cut off the power supply, leave cars are not allowed to be pensile clog.
17,can not rely on limit position limit stop!
18, may not be in a case with load adjusting brake lifting luffing mechanism
19, lifting heavy objects close to or reaches the rated lifting capacity, lifting should check before brake, with small height, short stroke lifting smoothly again after lifting.
20 and down limit position limiter, crane hook to work in the lowest position on the drum circle of wire rope has design provisions shall be maintained in a safe
21, fill in succession records, especially the unsafe factors must be clear.
 

Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMS

Article 3: safety technical requirements
1, the driver in front of the work for the crane safety devices and main parts and components carefully check, confirm the flexible and reliable to use.
2, the operator must follow instructions hand command signal control, to anyone dangerous signals should be emergency stop; in case of command signal is unknown or incorrect, the driver shall have the right not to drive, before driving must ring
3, the operator must handle switches to manipulate, do not use limit position limiter to stop; it is forbidden to three institutions at the same time
4, in addition to special circumstances, shall not use the car for braking, the controller must not be from is rapidly into reverse.
5, the hanging weight must not exceed the crane load rating, it is strictly prohibited to all slanting inclined condole.
6, should carefully check before lifting sling strong, fast mouth with sharp edges should be cushioned, and ensure the stability of the weight.
7, ban crane in the run up and down and all the inspection and maintenance work; it is strictly prohibited carelessly across the top and bottom; not allowed to hang off load or will hang hang in the air for a long time.
8, The operator should be familiar with all kinds of conventional basic safety operation skills: such as "hook" operation, "objects turn operation" "hook approximation personnel", "brake failure emergency operation", etc.
9, dangerous goods, lifting and hanging objects close to full load, should check the brake before lifting, the lifting of 150 ~ 200 mm for static braking, if reliable then rose to 500 mm from the ground for the landing dynamic braking, confirm the braking performance is reliable and stable lifting.

 

Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMSFormal Usage of Single-Girder Crane Hoisting Hooks
Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMS1. Avoid robbery or shock load. Avoid tear down sewing parts or overload. When hoisting, do not twist and the noose. Do not use damaged rigging.
2. The lifting the weight of content must not exceed the limit of the spreader working load, before the use, should check sling, and according to the lifting sling check the working load limit.
3. The work piece itself has a specially designed for hoisting rings or lug, check carefully before operation, and should be on all the rings.
4. The sling in life should stick to regular inspection and spreader of large tonnage and important products and end fittings should be flaw detection.

 

Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMSInverter hardware detection methods and common troubleshooting
Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMSInverter hardware detection methods

Nucleon (Xinxiang) Crane content manager system | Nucleon (Xinxiang) Crane CMS

1、The static test
1.1、Testing rectifier circuit
Find converter internal dc power supply side and N and P, dispatch multi-meter to resistance X10, red table bar got P, black table rods respectively in accordance with to R, S, T, there should be about a few of the resistance, and the basic balance. Instead received a black watch rod P side, red table rods in turn received R, S, T, there is a close to the infinite value. Received a red table rod N side, and by repeating the above steps, we can get the same results. We can determine if you have the following as A result, the circuit is abnormal, a. resistance unbalanced three-phase, failure can explain rectifier bridge. B. Red table welding P side bar, the resistance is infinite, and then can be concluded that rectifier bridge failure or malfunctioning of the starting resistance.
 
1.2、Test the inverter circuit
Received a red table rod P side, black table rods respectively to meet U, V, W, there should be a dozens of the resistance, and resistance in basic same, reverse phase should be infinite. Received a black watch rod N side, repeat the above steps should get the same results, otherwise can determine fault inverter module.
 
2、Dynamic testing
After normal in the static test result for dynamic test, the electrical commissioning. Before and after the electricity must pay attention to the following:
2.1、Before power on, must confirm the power input and output if the main circuit, the input voltage errors, such as error to connect input and output against or 380 v power access to 220 v level of frequency converter will appear the airline (Fried capacitors, varistors, module, etc.).
2.2、Check the inverter each interface is properly connected, whether there is loose connection, connection exception that may lead to failure frequency converter, serious when a frying machine, and so on and so forth.
2.3、Detect fault display content, such as transistors and preliminarily concluded that the failure and the reason.
2.4、Such as fault, not shown first to check whether there is abnormal parameters, then parameters restore factory Settings, the no-load without (motor) start frequency converter, and test the U, V, W three-phase output voltage value. Such as a lack of phase, three-phase imbalance, and so on and so forth, is a fault module or driver board, etc.
2.5、In the output voltage is normal (shape phase, three-phase equilibrium), under the condition of load test. Test, it's best to full load test.
 
A common fault of inverter
Now called the ac speed regulating system, mainly refers to the electronic power converter for ac motor variable frequency speed regulation system. Variable frequency speed regulation system, with its superior to the characteristics of the dc transmission, in many situations were as the preferred transmission scheme, similar speed regulating performance and dc speed control, but use frequency converter, its maintenance than dc complex, in the event of failure, it is difficult to deal with ordinary electric enterprise personnel, here is the inverter the causes of common fault analysis and processing method.
1、Parameter types of failure:
Frequency converter in use can meet the requirements of the transmission system, the parameters of the frequency converter set is very important, if the parameter setting is not correct, will cause the inverter can't work normally.
General factory, manufacturers for each parameter has a default value, these parameters call factory value. In the case of using the default parameter value, the user is able to normal operation panel operation way, but with panel operation does not meet the requirements of most of the drive system. So, the user before the correct use of frequency converter, for frequency converter parameters Settings, mainly from the following several aspects:
Confirm the motor parameters, set the motor inverter in the parameters of power, current, voltage, speed, maximum frequency, these parameters can be obtained directly from the motor nameplate.
Inverter control ways, namely, speed control and torque control, PID control, or some other way. After the selection of control mode, general according to control precision, need to be static or dynamic identification.
Set the startup mode of frequency converter, general inverter in the factory is set from the panel, the user may choose to start the way according to the actual situation, can use panel, external terminal and communication way, a few kinds.
The choice of a given signal and the frequency of the general inverter given there are multiple ways, can be a panel, external given, given the external voltage or current given given, communication way, of course, given the frequency of the inverter can also be the several ways of the sum of one or more of the following ways. Properly set the above parameters, the inverter can basically normal work, if you want to get better control effect can only modify the related parameters according to actual situation.
Parameter Settings class fault handling: once the parameters set such failure happened, inverter can not run normally, generally can be modified according to specification parameters. If not, it is best to put all the parameters to restore the factory values, and then according to the above steps to reset, for each company's inverter recovery method of its parameters is not the same.

 

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