ABB discontinued soft starter-PST/PSTB (intelligent)

ABB discontinued soft starter-PST/PSTB (intelligent)

When the first motor appeared, engineers have been looking for a way to avoid it. Since the early 1980s, Now these classics The latest PST series is ABB's The wisdom in modern power electronics is applied Parts to control the current and voltage when the motor starts and stops, and also added several. Solutions to mechanical and electrical problems Machines, mixers, pumps, conveyor belts and other equipment. It often causes unnecessary torque and current peaks, and at the same time causes many losses. Electrical problems Electrical problems of quantity. Unacceptable voltage fluctuation, which affects other equipment connected to the power grid. 100 % 58 % thirty percent Direct Start Star/Delta Start Soft Start Dynamic slope curve The whole transmission chain (from the motor to the driven equipment) will be subjected to severe stress. Operation problem Machine discomfort. Water hammer effect and pipeline pressure fluctuation often occur in the process of starting and stopping water pumps. Behind every technical problem and failure, we should pay attention to the problems caused by maintenance and shutdown. The simple way to solve these problems is to install ABB's PST(B) soft starter. ABB soft starter can start and stop the motor smoothly, to the greatest extent. <span class="trans-sentence" font-size:18px;background-color:#ffffff;"="" style="text-wrap: wrap; color: rgb(51, 51, 51);">Reduce mechanical and electrical impact.

Soft Starter-PST/PSTB (Intelligent)Product characteristicsPSTB internal bypasscontactorScrew installationProduct characteristicsMain loop voltage: 208-690V ACControl voltage: 100-250V, 50/60Hz.Current range: 30-1050A (external connection) and 52-1810A (internal connection).The same soft starter can adopt external connection and internal connection.Excellent adjustable functions (such as step-up/step-down time, jump-up, inching and step-down)Pressure and sequential starting, etc.)Current limiting function: adjustable between 1.5-7×Ie.Thermal resistor (PTC) monitors the winding temperature of the motor.real-time clockRecord the last 20 events and indicate the time when the events occurred.Fieldbus communication interfaceMotor overload protection, simulating the temperature of motor from current measurement. Can chooseTrip levels for 10A, 10, 20 and 30.Rotor locked-rotor protectionUnderload protection of motorPhase imbalance protectionReverse phase protectionTorque controlAnalog output indicates current, voltage, power factor, etc., 0-10V, 0-20mA、4 - 20mAAn output relay can be set.Pre-alarm function can be set.PST(B) series is a soft starter based on microprocessor, and this design applies the latest technology.Provide soft start and soft stop functions for the motor. PST(B) soft starter comes standard with multiple first.Into the motor protection function; Four-key keyboard and logical structure menu make it safe.Assembly, debugging and operation are all simple; There are 14 languages to choose from.PST soft starter can use or not use bypass contactor, for large specificationsThe PSTB370...PSTB1050 soft starter has built-in bypass contactor.In conventional start-up applications (such as pumps, compressors, hydraulic lifts, handrails)Ladder, short-distance conveyor belt and bow propeller, etc.), according to the rated power of the motorRate to choose PST soft starter.For heavy-duty starting applications (such as fans, centrifuges, crushers, mixers, mixers, etc.Mixer and long-distance conveyor belt), ABB suggests that you choose one more than the rated power of the motor.Specifications of soft starter

Soft Starter-PST/PSTB (Intelligent)Product characteristicsLCD screenThrough the PST(B) display, information can be displayed in your native language. You can choose a package.Including Chinese, English, German, French, Italian, Spanish and other 14 different languages. At PST(B)On the display screen, you can find all the information needed for setting, adjusting and troubleshooting.

This can make PST(B) very easy to operate and reduce the chance of misunderstanding.You can read the output current, output voltage, starting times and total operation on the display screen at any time.Line time and motor temperature data. If there is a fault, it will also be displayed on the display screen.Show. The fault information will also be explained in the selected language.Start multiple motorsYou can store three different starting parameter settings to achieve three different motor settings.Good starting sequence. This work can also be used on two-speed or three-speed motors.Yes.Protective coating protects productsYou can order PST(B) soft starter products composed of protective coating control panel. it canIn the environment with acidic corrosive gas such as sewage treatment, the service life is significantly prolonged.Life.Signal relay can be set.All PST units have three settable signal relays, and each relay can be set toSignal of operation, start completion, or event. Event settings can issue faults or alerts.The signal. 

The monitoring function not only monitors software and key soft starter functions, but also monitorsDepending on the input lack of phase and out of frequency range.Integrated bypass contactorABB AF connection is integrated in the larger soft starter (PSTB370 ... PSTB1050).Touch device. It can save you cost (save investment and time in fans and cables), saveSpace (the soft starter is smaller, there is no space-occupying fan and the power consumption is reduced. makeWith the bypass contactor, you can reduce the power loss by at least 90% during normal operation.Consumption).

There is no built-in bypass contactor in PST30 to PST300 soft starters, but it is in the incoming line.Side has reserved bypass contactor connection terminal. When using external bypass contactors, connectThis B1, B2 and B3 terminal enables the soft starter to use the built-in when bypassing.The protection function of.All soft starters can operate normally without bypass contactor.External keyboard (optional)The external keyboard is an optional component, which is installed in the control system.On the cabinet door of cabinet making, without opening the cabinet door, it is convenient toYou can read or set the related parameters of soft starter.Number, external keyboard can also be used to copy multiple software.Parameters between starters.External keyboard PSTEKbus adapterPST soft starter has an interface connected to ABB bus adapter on the front forCommunication of bus adapter. 

Through this interface, the user can control the soft starter.To its status information, upload and download parameters. Between soft starter and bus adapterThe interface is the same. No matter what PST(B) model you use, no matter when you are.Buy, it can always apply any new protocol, because it is set in the fieldbus plug.Righteous. ABB provides most common protocols, such as DeviceNet, Profibus-DP,Modbus-RTU and CANopen protocols. Connect PST(B) soft starter to the field bus system.System, you also need to use the accessories described on page 16-17, and set the PLC.Software, which can be used as a soft starter in www.abb.com/lowvoltage website.Found in the page.Use this function in the stopping process to completely control the torque, especially for the application of pumps.It's good. 

Traditional voltage control will cause sudden torque change, thus causing water hammer.Effect. Torque control minimizes the impact of this problem.Torque limitWhen using the torque control function, the torque can be set and the starting process will not exceed this setting.Fixed value, which will minimize the wear and tear of motor-driven equipment.Analog outputPST(B) soft starter has analog output signal, which can be used as PLC or analog.The input signal of the meter and the output signal can be expressed as motor running current and main electricity.Line voltage, power (horsepower), active power, reactive power, apparent power and power factorNumber, motor temperature or SCR temperature.Analog signal output typeIt can be a standard signal of 0 ... 10V, 0 ... 20mA and 4 ... 20mA. Analog outputThe terminal is shared with the input terminal of PTC protection. Therefore, only analog output or PTC protection can be selected.Guard.