Xi'an YuanQi Elevatorparts Company: KEB F5 elevator inverter

Xi'an YuanQi Elevatorparts Company: KEB F5 elevator inverter: Open-loop vector control inverter COMBIVERTF5 series developed by Germany Bryant Drive Technology Co., Ltd.. The series inverter using SMM ...

KEB F5 elevator inverter

Open-loop vector control inverter COMBIVERTF5 series developed by Germany Bryant Drive Technology Co., Ltd.. The series inverter using SMM technology, sensorless motor management technology, and realize sensorless speed control, open loop vector control. Available at 0.5Hz when 300% of the output torque can automatically track the frequency, automatic torque compensation.

 Compared in the non-SMM functional inverter, KEB F5 elevator inverter series inverter greatly improve the operating characteristics of the low frequency state motor mutation from no-load to rated load output torque characteristics and motor generator state, will complete electromechanical drive system is a reliable and effective way to show, in order to optimize the equipment installed in the actual work, operation and maintenance. Sensorless vector control; novel COMBIVERTF5 series inverter has the following characteristics: greater running torque at low speed, low speed high torque load under steady speed, torque mutation has a faster response time; 

When no load run time, the smaller the current consumption and the motor heat, to enhance the mechanical properties when the motor power running state. KEB F5 elevator inverter series inverter supply voltage for single-phase / three-phase 230V/400V, optional DC power supply. The drive is equipped with relay outputs and programmable analog / digital input and output, and programmable software input / output terminals, and also has an output phase monitoring, pulse count positioning restart after power loss protection, S-curve, ramp stop, power outage, DC braking, PID control, motor protection, control terminal high dynamic sampling + / - DC bus voltage input, internal the brake circuit breakers, motor PTC measurement, hardware current control, optional built-in filter and other functions. 

The output frequency can be up to 400Hz, the carrier frequency can be adjusted to 16kHz. Support bus protocol Profibus, Interbus, CAN, Sercos, DeviceNet, KEB-HSP5/DIN66019-II. F5 series inverters are currently the basic inverter Universal inverter two models. The basic inverter compact, multi-functional, reliable, and economic characteristics, the power range from 0.37 ~~ 30kW. Universal Converter has a more complete functionality, designed for high-quality machine tools and mechanical systems, increased power range of 0.37 ~~ 315kW. COMBIVERT inverter has been widely applied in the field of plastic machinery, textile machinery, machine tools and other around the world.

Xi'an YuanQi Elevatorparts Company: The working principle of the TAMAGAWA elevator enc...

Xi'an YuanQi Elevatorparts Company: The working principle of the TAMAGAWA elevator enc...: The elevator working principle and function of the TAMAGAWA elevator encoder   TS 5208 N 143  : it is a rotary displacement converted into ...

The working principle of the TAMAGAWA elevator encoder TS5208N143

The elevator working principle and function of the TAMAGAWA elevator encoder TS5208N143 : it is a rotary displacement converted into a string of digital pulse signal of the rotary sensor, these pulses can be used to control the angular displacement, if the elevator TAMAGAWA elevator encoder gear strips or the screw together can also be used to measure the linear displacement. Elevator TAMAGAWA elevator encoder TS5208N143  generates an electrical signal from the speed control set CNC, the programmable logic controller PLC, control system to handle.

The conversion of the angular displacement of the the ELTRA elevator TAMAGAWA elevator encoder photoelectric scanning principle. The reading system is based on the rotation of the radial indexing plate, the indexing is constituted by alternating light-transmissive window and a non-transmitting window. This system all the vertical irradiation of an infrared light source, so that light is put on the plate image is projected onto the surface of the receiver, the receiver is covered with a grating, said collimated instrument, it has the same window and the optical disc. The receiver's job is to change, and then the optical change is converted into a corresponding electrical changes in the feeling of light generated by the rotation of the disc. Generally, rotary elevator TAMAGAWA elevator encoder can be obtained a velocity signal, this signal is to be fed to the inverter, thereby adjusting the output data of the inverter. Failure phenomenon: 1, the rotating elevator TAMAGAWA elevator encoder is broken (no output), the drive is unable to work properly, run very slowly, and while the inverter protection "PG disconnect" ... joint action in order to work. Make the electrical signal to rise to a higher level, without any interference and generates a square wave pulse, which must be an electronic circuit to process. The connection between the elevator TAMAGAWA elevator encoder pg wiring and parameter vector frequency with elevator TAMAGAWA elevator encoder pg corresponding models must elevator TAMAGAWA elevator encoder pg. In general, the elevator TAMAGAWA elevator encoder pg Model points differential output, open collector output and push-pull output three, the transfer of the signal interface must take into account the inverter pg card, so choose the pg card model or set reasonable . elevator TAMAGAWA elevator encoder generally divided into incremental type and an absolute type, they kept the biggest difference: in the the incremental elevator TAMAGAWA elevator encoder case, the position determined by the pulse number is calculated from the zero mark, while the absolute-type elevator encoding the position of the device is determined by the readings of the output code. In the lap, the reading of each position of the output code is unique; Therefore, when the power supply is disconnected, the absolute type elevator TAMAGAWA elevator encoder is not separated and the actual position. 

If the power is turned on again, then the position readings are still current, valid; unlike incremental lift TAMAGAWA elevator encoder, as it is necessary to find the zero mark. Are all series elevator TAMAGAWA elevator encoder manufacturers are generally dedicated, dedicated elevator elevator TAMAGAWA elevator encoder, machine tools elevators TAMAGAWA elevator encoder, servo motor dedicated elevator TAMAGAWA elevator encoder, etc., and the elevator TAMAGAWA elevator encoder are intelligent the the various parallel interface can communicate with other devices. Elevator TAMAGAWA elevator encoder is the angular displacement or linear displacement into an electrical signal means. The former code disk, which is known as the yardstick. Elevator TAMAGAWA elevator encoder can be divided into two kinds of contact and non-contact manner readout. Touch brush output a brush contacting the conductive region or the insulating region to represent the state of the code is "1" or "0"; acceptance of the non-contact type sensor element is a photosensitive member or the magnetic components, the use of the photosensitive member when The light-transmissive region and non-transmissive region to represent the state of the code is "1" or "0". According to the working principle of the elevator TAMAGAWA elevator encoder can be divided into two types of incremental and absolute. Incremental elevator TAMAGAWA elevator encoder displacement is converted into a periodic electrical signal, and then the electrical signal into a counting pulse, and the number of pulses indicates the magnitude of the displacement. 

Absolute elevator TAMAGAWA elevator encoder each position corresponds to a certain digital code, so that it is showing the value of only the start and end positions of the measurement, and has nothing to do with the measured intermediate process. Rotary the incremental elevator coding rotation output pulse counting equipment to know its position when the elevator TAMAGAWA elevator encoder does not move or power outage, counting device's internal memory to remember the location. In this way, when the power outage after the elevator TAMAGAWA elevator encoder can not have any mobile call work elevator TAMAGAWA elevator encoder output pulse process can not interfere with lost pulse, or zero will offset count device memory, and this kinds of offset amount is no way to know the wrong production results appear to know. The solution is to increase the reference point, the elevator per TAMAGAWA elevator encoder passes the reference point, the reference position correction into the memory position of the counting device. Before the reference point, the position accuracy is not guaranteed. To this end, each operation in industrial control there to go first reference point, boot change for other methods. Such an elevator TAMAGAWA elevator encoder is determined by the mechanical position of the code wheel, it is without blackout, the influence of interference. Absolute elevator TAMAGAWA elevator encoder position determined by the mechanical position only, it is without memory, without looking for a reference point, and do not always count, when the need to know where and when to go read it. Thus, the anti-jamming characteristics of the elevator TAMAGAWA elevator encoder, the reliability of the data greatly improved. Absolutely elevator TAMAGAWA elevator encoder positioning significantly better than the incremental elevator TAMAGAWA elevator encoder has been increasingly used in industrial control positioning. Absolute type elevator TAMAGAWA elevator encoder is more, because of its high accuracy, the number of output bits still used parallel output, an output signal must ensure that the connection very well, but also for more complex conditions isolation, connect the cable core number, by This has brought a lot of inconvenience and reduce reliability, therefore, absolutely elevator TAMAGAWA elevator encoder output type multi-digit generally optional serial output or bus output, the the German production absolutely elevator TAMAGAWA elevator encoder serial output is the most commonly used is SSI (synchronous serial output). Elevator multiturn absolute TAMAGAWA elevator encoder.

 Elevator TAMAGAWA elevator encoder manufacturers use the watch gear mechanical principle, another set of code disc (or set of gears, multiple sets of code disc) Center code disk rotation, gear transmission, to increase the number of turns on the basis of single-turn TAMAGAWA elevator encoder coding to expand the measurement range of the elevator TAMAGAWA elevator encoder absolute elevator such an TAMAGAWA elevator encoder is called a multi-turn absolute elevator TAMAGAWA elevator encoder, it is also determined by the mechanical position of the coding, each of the position-coding only will not be repeated, without memory. Another advantage of the the multiturn elevator TAMAGAWA elevator encoder measurement range, the actual use often more affluent, so installation unnecessary struggling to find zero, an intermediate position on it as a starting point, and greatly simplifies the installation and commissioning of difficulty . Multi-turn type absolute elevator TAMAGAWA elevator encoder has obvious advantages in length positioning has been increasingly used in industrial control positioning.

Xi'an YuanQi Elevatorparts Company: schindler elevator pcb ID.NR591873

Xi'an YuanQi Elevatorparts Company: schindler elevator pcb ID.NR591873: If you're thinking about putting in an elevator in an existing office or apartment building or perhaps you are building a new building a...

schindler elevator pcb ID.NR591873

If you're thinking about putting in an elevator in an existing office or apartment building or perhaps you are building a new building and aren't positive that you want to have an elevator, you should consider every aspect of the expenses. Yes, there is some cost involved with installing the elevator as well as maintenance costs, but one thing you can't overlook is the elevator inspection costs.In each and every state you will find laws set up about how many inspections you must have on your elevator to keep it up to code. In a few states you just need an annual inspection. In other states it can be bi annually, tri yearly or even every quarter.schindler elevator pcb ID.NR591873  When your elevator is inspected, not only do you need to pay the inspector, but you must pay fees to your local cod office to have that inspection on file. Just for the record, you can't have a certified employee do the inspection; it has to be done by a 3rd party elevator inspector.Keeping your elevators safe really should be your number one priority. It is not only the law, but in case someone is hurt because your elevator fails, that is your responsibility. It is not like a car accident where you can point the finger elsewhere. This is where a regular elevator inspection will benefit you.An elevator inspector can discuss any elements of concern on your elevator, determine whether you have any faulty wires, connections or cables and reduce your liability if something happens to the elevator. In addition, if you don't have your elevator inspected regularly, you may face heavy fines and possibly the state will shut your elevator down.For those who have an elevator within your business or even a building which you own, it is very important that you hire the proper elevator inspection service to inspect your elevators. The first point that you'll want to look for is a license from the state that you reside in. You may also want to consider a large company that's been conducting business for a long time.In the event you aren't sure where you can turn, talk to your insurance professional. Because the insurance carrier has to insure your building and pay for any claims caused by a faulty elevator, they should have a comprehensive list of companies which they prefer for elevator inspections. Your insurance company might even provide a discount for you if you choose a company they recommend.Regardless of whom you are or where you reside, if you have an elevator in your building, facility, or even your home, you must have it inspected regularly as required by your state's laws. There are many serious consequences if you do not.Choosing a reputable company that provides you with unbiased inspections can save you on your insurance costs, lower your liability, and most important, keep the passengers in your elevator safe at all times.

Xi'an YuanQi Elevatorparts Company: OTIS elevator test tool GAA21750AS1

Xi'an YuanQi Elevatorparts Company: OTIS elevator test tool GAA21750AS1: OTIS elevator test tool GAA21750AS1 ,West drive is a production by the Italian high-performance drive in the country, the first West OTIS...

OTIS elevator test tool GAA21750AS1

OTIS elevator test tool GAA21750AS1,West drive is a production by the Italian high-performance drive in the country, the first West OTIS match synchronous motor has unique advantages: first, the PI function of the drive is quite rich, can be fine divided into four sections (including a zero speed PI), and the width is adjustable, so the match toothless motor can not add to the load signal, the start will not happen inverted slip; followed by two sets of self-tuning its internal program : one motor parameter auto-tuning, it can automatically whole set of phase-to-phase inductance and resistance of the motor constant avoid debugging difficult motor manufacturers provide incomplete motor parameters to improve; another toothless positioning self-tuning, the program is detecting encoder and the motor magnetic pole position corresponding to. Wiring instructions: U1, V1, W1 inverter into the line input U2, V2, W2 inverter output + BR1,-C then brake resistor 1,2 analog input terminal 12 (ENERGE) enable signal 13 (FWD) Forward 14 (REV) reversed 19 (COM) common terminal of 36 (SPD1) multi-speed multi-speed 1 37 (SPD2) 2 38 (SPD3) speed 3 80,82 (DRIVE OK) fault output 83, 85 the brake detection output (BRAKE) ground inside the inverter control board 0V and inverter is connected to our motherboard 0V and ground is not connected, in some cases, the frequency converter the 0V and motherboard 0V the pressure difference will result in the damage of the motherboard feedback mouth or inverter sub-frequency card. Inverter control board (remove the divider cards can see) a S24 jumpers need to unplug the jumper (V3.5 cable cut S35) inverter zero and places on separate, small power inverter power board also red S1 jumper position on the bottom line in the fan control, you must unplug the S1 jumper may be zero, and the ground is completely separate Also note that The control panel has a S1 jumper, for a version of the initialization, this jumper can not unplug, otherwise all the parameters will be initialized. If it can not be separated, set the switch on the power supply's 0V and ground link, which guarantee the same potential of the inverter control board 0V 0V and mot

Xi'an YuanQi Elevatorparts Company: OTIS elevator inverter OVF20

Xi'an YuanQi Elevatorparts Company: OTIS elevator inverter OVF20:     First, the power supply of AC 380V-AC power supply or 220V AC power supply through a rectifier system of the inverter inte...

OTIS elevator inverter OVF20

    First, the power supply of AC 380V-AC power supply or 220V AC power supply through a rectifier system of the inverter internal rectified into a DC voltage, and then loop through the inverter in the DC (direct current) voltage through the capacitor of the tributaries formation. 

    Use the pulse-width modulator inverter part of the rectifying out a DC voltage in the reverse into the frequency of the AC voltage can be changed to complete the inverter process. The OTIS elevator inverter OVF20. The first to see the circuit board in the front cover open OVF20, meaning of MCBII is Motion Control Board 2, Chinese meaning is the movement of the control panel, as the name implies, the control panel is the control of the movement as a whole system. This part of the course, all introduced in the first part of the interface, this refers to the board interface. The board is OVF20 the interface board for all of the input and output signals, and also dealing with these signal processing board. We can see the figure, in the elevator control cabinet speed command input to MCBII board by the elevator control system (LBII or LCBII or other control panel), MCBII board received the speed command with the the hoistway received signal (safety circuit, etc.), then MCBII issued within the inverter outputs a control signal to the inverter inside the transistor drive PDB plate, and finally completed by the PDB plate controls the inverter transistors to complete the inverter process. (Of the PDB plate is within the control panel of the inverter, is mainly used to control the inverter with high power transistor to complete inverter role, but the PDB is subject to MCBII control). MCBII command while in the receiving speed command and the hoistway, also receives a speed signal of the speed sensor PVT sent over, and comparing the internal set speed according to the actual speed of the elevator of this feedback to better control of the elevator operation. In the inverter circuit to the motor output, there are two phase line has two signal Feedback to MCBII of this is the current protection system of the inverter internal feedback through the output of the current sensor, can detect the output current of the inverter when found to exceed the rated output current, the inverter will protect off. In the inverter and also part of the brake resistor, which is partly used to brake the elevator.

Xi'an YuanQi Elevatorparts Company: OTIS elevator parts supply OTIS elevator PCB LCB-I...

Xi'an YuanQi Elevatorparts Company: OTIS elevator parts supply OTIS elevator PCB LCB-I...: This OTIS elevator PCB LCB-II is the most important applications in Otis the MCS-LCB-II (modular elevator control system-LCB-II) Elevator ...

OTIS elevator parts supply OTIS elevator PCB LCB-II

This OTIS elevator PCB LCB-II is the most important applications in Otis the MCS-LCB-II (modular elevator control system-LCB-II) Elevator system control components. LCB-II board is a European technical center in Germany by Otis set research and development of products, if traced to its source, can be traced back to the early widely used in our country elevators TOEC-3 figure. It should be said, LCB-II by elevator TOEC-3 LB plates gradually update to upgrade to what we see today LCB-II, in the middle there LCB-II board (application on in CHVF elevator's). European design and production, so a lot of the design concepts and standards adopted by European standards. (Due to our country's many standards with European standards snapping, so most of these standards also apply to the elevator standards). LCB-II board should be able to say and synthesis together another Otis Model elevator control unit abbreviation (the OCSS + LMCSS) LCB-II is the the OCSS board and LMCSS board of streamlining the control panel of the elevator cab. LCB-II production by INTEL 8088 microprocessor to the central computing board also anxious to become a power support, input and output interfaces, RSL remote station interface, motor protection devices.

Xi'an YuanQi Elevatorparts Company: yaskawa elevator inverter L1000A Features

Xi'an YuanQi Elevatorparts Company: yaskawa elevator inverter L1000A Features: 1 :  yaskawa elevator inverter L1000A  self-tuning (1) lift the car, remove the wire rope, confirm the motor idling, not a security failure...

yaskawa elevator inverter L1000A Features

1: yaskawa elevator inverter L1000A self-tuning

(1) lift the car, remove the wire rope, confirm the motor idling, not a security failure

(2) The encoder according to claim installed encoder lines condemnation

(3) the brake, brake the strong shock contactor KMB and KMZ inverter input and output contactor KMC, and KMY effective pull, observe brake is open to confirm that no frictional resistance the motor idling

(4) the inverter parameters A1-02 is set to 3, and set up the drive parameters according to Chapter 3.2 described

(5) Set the inverter, in accordance with 4.2.1 as described, the drive menu "AUTO-TUNING" input totaling seven, followed by:

Rated VOLTAGE motor rated voltage [VAC]

Rated current rated current of the motor [AAC]

Motor Rated Frequency Rated frequency [HZ]

Rated Speed ​​motor rated speed [RPM]

Number of Poles Motor number of poles

Selected Motor 1/2 drive motor No.

PG Pulses / Rev PG number of rotary encoder pulse number

2: Typical Case Study:

(1) elevator just start the drive displayed PGO failure

PGO feedback lost meaning, possible reasons: due to electrical or mechanical brake does not open, or stuck motor mechanical Possible Cause: the encoder power cord off or virtual access possible reasons: If the S-curve start or stop time set too long, due to the the elevator starter or the actual speed of the parking elevator close to zero speed, the traction force is small, when the car is overloaded or loaded with traction machine is likely to drag fixed car, the inverter is still speed command output PGO failure

(2) Elevator OC failure in the operation of the inverter suddenly

OC is the meaning of the over-current converter, possible causes of damage to the encoder, resulting in the feedback does not normally lead to possible reasons for over-current converter in the speed of the adjustment process, the motor winding insulation damage, will produce short circuit overcurrent possible causes , the load is too large, the acceleration time is too short

(3) elevator suddenly running in inverter displays OV fault

OV is the meaning of the main circuit DC-side voltage possible causes, analog given voltage sags, add acceleration and deceleration slope in the inverter parameters C1-01 = 1S, C1-02 = 1S

Possible reasons for following 15KW inverter input voltage E1-01 parameter set properly, generally located 400V, such as the set of 380V, then there may be upward deceleration the fault may be three reasons, the load is too large, the possible reasons for the deceleration time is too short braking resistor (braking unit) improperly configured or damaged

(4) when the elevator stopped inverter GF fault

GF is the meaning of the earth fault (ground current of the inverter output side of more than 50% of the rated output current), usually due to the output side of the contactor nonzero current release lead to check the drive parameters B1-03 is set to 1 (free glide stop), output contactor parking pole blocking the signal prior to release of Selenium in Green Tea by adding a relatively short circuit between the inverter to the motor U, V, W any one of the reasons; E2-01 set incorrectly also reported GF fault

(5) when the elevator stopped inverter the PUF fault is not recoverable

The PUF meaning the DC side fuse blown, usually lead to fuse melting bad braking transistor damage

(6) when the elevator stopped Inverter SC fault, not recoverable

The SC meaning of load short-circuit may cause a damage possible causes motor windings short: inverter IGBT module

(7) Elevator Express deceleration into the flapper given curve stairs

Given curve in order to ensure that direct calls into a flat layer flapper distance error will be corrected, if the error is large in a given curve will produce a higher level

Distance error causes

Hoistway the flat layers flapper varying lengths due to the hoistway study, the system to record the length of the floor flapper Peace layer sensor spacing if the other floors of the flapper may be long or short, will lead the calculated pulse when parking errors

2 encoder disturbed, sometimes Grounding is not good, the encoder signal into the motherboard may be affected by interference, leading to positioning errors

Traction machine rope slipping in the wire rope and sheave with chalk to make a mark, and then up and down to open a back and forth, to see mark whether the relative displacement relative displacement larger: if dirty wire rope and wire rope shall be cleaned; If the wire rope or traction sheave wear related components of the exchange shall be

4 leveling sensors malfunction or interference

When the Press Division I recommend setting the value for vector control, the inverter parameters, and the drive did the motor auto-tuning, but run the drive is still bad and motor match may inverter parameter adjustment disorder now can be recorded under the self-tuning the E2 parameter values, A1-03 = 2220, and then set up the inverter parameters to restore the factory default, then set the parameters of the E2 recorded, and other parameters of the inverter Division I recommended values ​​and actual field the required parameter settings debugging can

For example, in March 2003, a company in Harbin elevator on-site commissioning, the land of another user to reflect their own debugging encountered a problem, the inverter parameters set in accordance with the standard value, the inverter did the motor auto-tuning Nevertheless debug variable frequency just can not match the inverter Fortunately, before that, they debugged the three same configuration elevator, ideal debugging the debug the same way as before, but I do not know why the tune is bad customer also reminders The Elevator Therefore I stress

To the scene to check the main computer board and inverter parameters and peripheral configuration, are no exception, traction machine self-tuning indeed done but in elevator operation exception: Elevator normal acceleration and constant speed operation; while decelerating, obvious enough inverter vector control, resulting in slight runaway traction machine

According to this phenomenon, I carefully analyze and judge: Maybe some of the parameters of the inverter is mixed up in hundreds of parameters is impossible to find out

Thus, the record under the self-tuning parameters of E2 and then set A1-03 = 2220, the inverter to restore the factory default, then E2 parameter is set to record under the parameter, the inverter other parameters as Division I recommended value and the actual field required parameters (such as F1-01, etc.) settings, press the standard debugging method debugging results, inverter and traction machine match

Then test run slow, slow normal, and then run the single-layer, double-layer, multi-layer, the top level, the underlying Express running curve normal, comfort the debugging peace layer adjustment, as well as the functional check

Debugging, comfort and other aspects of customer satisfaction.

Xi'an YuanQi Elevatorparts Company: HITACHI elevator pcb YPVF

Xi'an YuanQi Elevatorparts Company: HITACHI elevator pcb YPVF: The first one: microcomputer substrate INV-MPU The elevator control system through  HITACHI elevator pcb YPVF  the microcomputer board MPU ...

HITACHI elevator pcb YPVF

The first one: microcomputer substrate INV-MPU

The elevator control system through HITACHI elevator pcb YPVF the microcomputer board MPU achieve elevator assembly election, speed control, and special control. The board has two CPU (main CPU: M6802, 24K ROM, 2K RAM; Vice CPU: (MC68450) in the M68000, 48K EEPROM, 8K RAM), 4 x 4 keyboard and LED light-emitting diode display.

Second block: INV-FIO interface board

The interface board FIO the computer MPU contact with an external device, input and output interface buffer, to guarantee the normal communication of the elevator control system, the reliable operation of the important isolation driving action.

    Input signal: including outside calls and contact signals by the FIO sent to the MPU. The special hybrid integrated circuit isolation;

    Output signal: FIO drive relays, contactors, switch door action, driven gate array with thyristor or digital power integrated circuits.

And security departments signal, FIO were sent to the main and secondary computer, once the main, Vice microcomputer received on the control the elevator immediately stop running.

The third block: current regulator board INV-ACR

    Current regulating plate ACR to the U-phase of a motor the Hall device HCT current transformer measured, the current command is given by the V-phase current and the sub-microcomputer compares, by the composition of the proportional-integral closed-loop regulation of the drive current, and then generate a PWM pulse width modulation wave sent to the base driver board the BDC. This part as a transistor switch inverter control signal, the board also has a power outage detection, over-current, over-voltage, regenerative loop detection function.

Fourth block: the base driver board INV-BDC

    The base drive plate BDC trigger the ACR board sent the PWM switch signal amplification, and the direct-drive inverter power transistors. The driver circuit using a dedicated integration modules.

    In addition, the board also over-voltage detection circuit, undervoltage detection circuit, renewable transistor drive circuit. Detection signal back to the the ACR board trigger protection, at the same time send the MPU board score board processing.

INV-SDC fifth block: serial communication board

The SDC board installed in the top of the car responsible for the signal is sent to the car in the elevator machine room control cabinet, at the same time, then the signal transmission to the control cabinet issued car; responsible for the communication control cabinet with SDC board MPU board.

The main components used in the plate are still SDA LSI, using automatic address scan mode, the clock trigger, the address counter is automatically counted, and for the collection of useful data, allocation. Data transmission using full-duplex serial communication. The correct data sent to the shift register into parallel data; data the car transmission control cabinet with the scan address changes, the decoder generates a strobe signal, each input port the data is read into the corresponding transmission information memory RAM, the control pulse when Kushiro The next shift into serial data, then add the address data and synchronization characters constituting the standard serial information, conversion Transactions variable wave from S01, S02 output by transformer isolation feeding control cabinet.

Board input signal with galvanic isolation; gate array integrated circuit output signal using a solid-state relay and transistor power drive. The entire plate without the need for programming, all constituted by hardware.