Description
Reviews
The soft starter /softstarter of the PST and PSTB series is ABB's most advanced and functional equipment designed to control the smooth start and braking of an asynchronous electric drive. The range of operating currents of the PST series for inclusion in the line is from 30 to 1050A, for inclusion inside the "triangle" - up to 1810A. The presence of built-in digital inputs and outputs allows the user to integrate the device into any automated control system.
A distinctive feature of the SCP PST(B) is a modern control and protection system that ensures reliable operation of the electric drive, protection of the electric motor and power electronics of the device, allows you to monitor the current state and inform the control system about the possibility of emergency modes. By default, all PST(B) softstarters are equipped with an interface for connection to the FieldBusPlug process bus, the devices support digital data exchange protocols CANopen, DeviceNet, Profibus DP, Modbus RTU.
The PSTB versions for current ratings from 370 to 1050A are equipped with an integrated bypass/shunt contactor by default.
Technical characteristics of ABB soft starters of the PST(B) series
Rated power: 15 – 1000kW;
Rated current: 30-1050A (up to 1810A when connected inside the "triangle");
Rated operating voltage: 220-690V AC;
Power supply voltage for electronics: 110V /220V AC;
Temperature range: 0...+50°C;
Degree of protection: IP20 /IP10;
Built-in controls and options
Built-in information text display (14 languages supported) and keyboard (possibility to connect an external control panel with IP66 protection);
Control inputs 2 pcs.("Engine start", "Engine stop");
Programmable device control inputs 2 pcs. (each input can be programmed to one of the following values: "Not in use", "Reset", "Activation", "Push", "Direct start from the mains", "Engine start 2", "Engine start 3" or disabling the industrial bus interface);
Analog output 0-10 V, 0-20 mA, 4-20 Ma (displaying information about the values of the output current, voltage, power factor, temperature of the electric motor...);
Programmable status relays (1NO+1NZ contacts) 3 pcs. (each relay is programmed to display the signal "Operation", "Bypass", "Event");
Built–in bypass contactor for PSTB series devices with current ratings of 370 - 1050A;
Output relay for switching to bypass/shunt contactor;
Option - protective coating of printed circuit boards for use in aggressive environments;
Analog input for connecting a PTC temperature sensor from an electric motor (thermal protection);
Connections to the FieldBus industrial bus using digital protocols CANopen, DeviceNet, Profibus DP, Modbus RTU.
Built-in control, control and protection functions of the electric drive
The ability of the device to work when connected to a line or inside a "triangle";
Push mode for starting jammed and inert mechanisms;
Electric motor torque control function;
The function of limiting the starting current of the electric drive 1.5–7 In;
Function type selection overload protection of the electric motor (response class 10A, 10, 20, 30);
Protection against asymmetry of the supply phases;
Protection against incorrect phase sequence;
Protection against jamming of the rotor, shaft of the drive mechanism;
Protection against underloading and dry/idle modes of pumping equipment;
Programmable alarm warning functions;
The function of the event log of the current state of the device with real-time reference;
Thermal protection of thyristors.
Advantages of using soft-start /UPP ABB PST(B) series devices
Torque control function - the torque control algorithm reduces equipment wear, prevents the possibility of water shocks, pressure surges, accidents in water supply systems, and significantly reduces maintenance costs;
Built-in bypass contactor – improving energy efficiency by reducing heat losses, minimizing the overall dimensions of devices, increasing reliability regardless of operating conditions;
High degree of protection of the electric drive – soft-start protection functions ensure trouble-free operation of the electric drive in the most difficult conditions, protect power electronics from overheating, inform about the current state and the possibility of emergency situations;
Programmable analog output – constant monitoring and display of information about current operating parameters, the ability to connect measuring instruments (ammeters, voltmeters), the transmission of an analog signal for processing into an automated process control system;
FieldBus Industrial Bus – full control of the automated control system over the status of the electric drive system, data exchange is carried out via digital protocols CANopen, DeviceNet, Profibus DP, Modbus RTU;
Text display of information with Russian language support – visibility and convenience of setting up electrical equipment, the choice of the type of drive mechanism (pump, fan, conveyor, compressor, mill) automatically activates the necessary functions and control modes.
An example of the implementation of the connection in line and inside the "triangle" of the soft starter PST(B)
When starting an electric motor with a rated operating current of 100A from a SCP connected to the line, the nominal value of the device must be equal to the nominal operating current of the electric motor. In our case, it is equal to 100A and we choose SCP PST105-600-70. When starting the same electric motor from the SCP, switched on inside the triangle, the current flowing through the softstarter decreases by 42% and is already 58%. In this case, we can install the PST60-600-70 device, which is one size smaller than the device included in the line.
The dependence of the soft-start device selection on the operating mode
Normal start-up, Class 10: screw/centrifugal pumps, compressors, elevators, conveyor belts (short length), escalators, lifting devices. The nominal value of the device corresponds to the nominal current of the electric motor.
Heavy start, Class 30: mills, crushers, mixers, mixers, grinders, long conveyor systems. The nominal value of the device must be selected by a standard size larger than the nominal current of the electric motor.
Note: for a number of more than 10 starts/hour, the nominal value of the device must be selected for a nominal value greater than the nominal current of the electric motor.
Examples of solving mechanical and electrical problems when using the PST(B) series SCP
1. How to reduce maintenance and repair costs?
– The use of a soft starter device reduces the load and wear of mechanical components of the electromechanical drive.
2. How to prevent the electric motor of the drive mechanism from turning on in the wrong direction?
– It is necessary to use a soft starter device with protection against incorrect phase sequence.
3. How to improve the efficiency of the electromechanical drive with variable load?
– The use of a soft starter with the function of warnings about high and low current allows you to load and unload the drive during operation. A typical example is the operation of conveyors with a large belt width.
4. How to ensure a normal start-up even after a long period of equipment downtime?
– The use of a soft starter with a push mode function provides the necessary starting torque to overcome high initial friction.
5. How to increase the service life of the drive belts?
– The use of a softstarter reduces the mechanical load during the start of the electric drive, and thus prevents slipping and wear of the belts.
Nominal characteristics of ABB soft-start devices of the PST(B) series
The operating voltage is 220..600V, normal start-up, Class 10, line connection
Pn is the rated power of the electric motor, In is the maximum rated operating current of the SCP
The operating voltage is 400..690V, normal start-up, Class 10, line connection
Pn is the rated power of the electric motor, In is the maximum rated operating current of the SCP
The operating voltage is 220..600V, normal start, Class 10, connection inside the "triangle"
Pn is the rated power of the electric motor, In is the maximum rated operating current of the SCP
The operating voltage is 400..690V, normal start, Class 10, connection inside the "triangle"
A distinctive feature of the SCP PST(B) is a modern control and protection system that ensures reliable operation of the electric drive, protection of the electric motor and power electronics of the device, allows you to monitor the current state and inform the control system about the possibility of emergency modes. By default, all PST(B) softstarters are equipped with an interface for connection to the FieldBusPlug process bus, the devices support digital data exchange protocols CANopen, DeviceNet, Profibus DP, Modbus RTU.
The PSTB versions for current ratings from 370 to 1050A are equipped with an integrated bypass/shunt contactor by default.
Technical characteristics of ABB soft starters of the PST(B) series
Rated power: 15 – 1000kW;
Rated current: 30-1050A (up to 1810A when connected inside the "triangle");
Rated operating voltage: 220-690V AC;
Power supply voltage for electronics: 110V /220V AC;
Temperature range: 0...+50°C;
Degree of protection: IP20 /IP10;
Built-in controls and options
Built-in information text display (14 languages supported) and keyboard (possibility to connect an external control panel with IP66 protection);
Control inputs 2 pcs.("Engine start", "Engine stop");
Programmable device control inputs 2 pcs. (each input can be programmed to one of the following values: "Not in use", "Reset", "Activation", "Push", "Direct start from the mains", "Engine start 2", "Engine start 3" or disabling the industrial bus interface);
Analog output 0-10 V, 0-20 mA, 4-20 Ma (displaying information about the values of the output current, voltage, power factor, temperature of the electric motor...);
Programmable status relays (1NO+1NZ contacts) 3 pcs. (each relay is programmed to display the signal "Operation", "Bypass", "Event");
Built–in bypass contactor for PSTB series devices with current ratings of 370 - 1050A;
Output relay for switching to bypass/shunt contactor;
Option - protective coating of printed circuit boards for use in aggressive environments;
Analog input for connecting a PTC temperature sensor from an electric motor (thermal protection);
Connections to the FieldBus industrial bus using digital protocols CANopen, DeviceNet, Profibus DP, Modbus RTU.
Built-in control, control and protection functions of the electric drive
The ability of the device to work when connected to a line or inside a "triangle";
Push mode for starting jammed and inert mechanisms;
Electric motor torque control function;
The function of limiting the starting current of the electric drive 1.5–7 In;
Function type selection overload protection of the electric motor (response class 10A, 10, 20, 30);
Protection against asymmetry of the supply phases;
Protection against incorrect phase sequence;
Protection against jamming of the rotor, shaft of the drive mechanism;
Protection against underloading and dry/idle modes of pumping equipment;
Programmable alarm warning functions;
The function of the event log of the current state of the device with real-time reference;
Thermal protection of thyristors.
Advantages of using soft-start /UPP ABB PST(B) series devices
Torque control function - the torque control algorithm reduces equipment wear, prevents the possibility of water shocks, pressure surges, accidents in water supply systems, and significantly reduces maintenance costs;
Built-in bypass contactor – improving energy efficiency by reducing heat losses, minimizing the overall dimensions of devices, increasing reliability regardless of operating conditions;
High degree of protection of the electric drive – soft-start protection functions ensure trouble-free operation of the electric drive in the most difficult conditions, protect power electronics from overheating, inform about the current state and the possibility of emergency situations;
Programmable analog output – constant monitoring and display of information about current operating parameters, the ability to connect measuring instruments (ammeters, voltmeters), the transmission of an analog signal for processing into an automated process control system;
FieldBus Industrial Bus – full control of the automated control system over the status of the electric drive system, data exchange is carried out via digital protocols CANopen, DeviceNet, Profibus DP, Modbus RTU;
Text display of information with Russian language support – visibility and convenience of setting up electrical equipment, the choice of the type of drive mechanism (pump, fan, conveyor, compressor, mill) automatically activates the necessary functions and control modes.
An example of the implementation of the connection in line and inside the "triangle" of the soft starter PST(B)
When starting an electric motor with a rated operating current of 100A from a SCP connected to the line, the nominal value of the device must be equal to the nominal operating current of the electric motor. In our case, it is equal to 100A and we choose SCP PST105-600-70. When starting the same electric motor from the SCP, switched on inside the triangle, the current flowing through the softstarter decreases by 42% and is already 58%. In this case, we can install the PST60-600-70 device, which is one size smaller than the device included in the line.
The dependence of the soft-start device selection on the operating mode
Normal start-up, Class 10: screw/centrifugal pumps, compressors, elevators, conveyor belts (short length), escalators, lifting devices. The nominal value of the device corresponds to the nominal current of the electric motor.
Heavy start, Class 30: mills, crushers, mixers, mixers, grinders, long conveyor systems. The nominal value of the device must be selected by a standard size larger than the nominal current of the electric motor.
Note: for a number of more than 10 starts/hour, the nominal value of the device must be selected for a nominal value greater than the nominal current of the electric motor.
Examples of solving mechanical and electrical problems when using the PST(B) series SCP
1. How to reduce maintenance and repair costs?
– The use of a soft starter device reduces the load and wear of mechanical components of the electromechanical drive.
2. How to prevent the electric motor of the drive mechanism from turning on in the wrong direction?
– It is necessary to use a soft starter device with protection against incorrect phase sequence.
3. How to improve the efficiency of the electromechanical drive with variable load?
– The use of a soft starter with the function of warnings about high and low current allows you to load and unload the drive during operation. A typical example is the operation of conveyors with a large belt width.
4. How to ensure a normal start-up even after a long period of equipment downtime?
– The use of a soft starter with a push mode function provides the necessary starting torque to overcome high initial friction.
5. How to increase the service life of the drive belts?
– The use of a softstarter reduces the mechanical load during the start of the electric drive, and thus prevents slipping and wear of the belts.
Nominal characteristics of ABB soft-start devices of the PST(B) series
The operating voltage is 220..600V, normal start-up, Class 10, line connection
Device type | Pn, kW (at 400V) | Pn, kW (at 500B) | In, And | weight, kg |
PST30-600-70 | 15 | 18,5 | 30 | 4,8 |
PST37-600-70 | 18,5 | 22 | 37 | 4,8 |
PST44-600-70 | 22 | 25 | 44 | 4,8 |
PST50-600-70 | 25 | 30 | 50 | 4,8 |
PST60-600-70 | 30 | 37 | 60 | 5,0 |
PST72-600-70 | 37 | 45 | 72 | 5,0 |
PST85-600-70 | 45 | 55 | 85 | 11,2 |
PST105-600-70 | 55 | 75 | 105 | 13,0 |
PST142-600-70 | 75 | 90 | 142 | 13,0 |
PST175-600-70 | 90 | 110 | 175 | 21,5 |
PST210-600-70 | 110 | 132 | 210 | 21,5 |
PST250-600-70 | 132 | 160 | 250 | 23,0 |
PST300-600-70 | 160 | 200 | 300 | 23,0 |
PSTB370-600-70 | 200 | 257 | 370 | 31,0 |
PSTB470-600-70 | 250 | 315 | 470 | 31,0 |
PSTB570-600-70 | 315 | 400 | 570 | 52,0 |
PSTB720-600-70 | 400 | 500 | 720 | 55,0 |
PSTB840-600-70 | 450 | 600 | 840 | 60,0 |
PSTB1050-600-70 | 560 | 730 | 1050 | 60,0 |
The operating voltage is 400..690V, normal start-up, Class 10, line connection
Device type | Pn, kW (at 400V) | Pn, kW (at 690B) | In, And | weight, kg |
PST30-690-70 | 15 | 25 | 30 | 4,8 |
PST37-690-70 | 18,5 | 30 | 37 | 4,8 |
PST44-690-70 | 22 | 37 | 44 | 4,8 |
PST50-690-70 | 25 | 45 | 50 | 4,8 |
PST60-690-70 | 30 | 55 | 60 | 5,0 |
PST72-690-70 | 37 | 59 | 72 | 5,0 |
PST85-690-70 | 45 | 75 | 85 | 11,2 |
PST105-690-70 | 55 | 90 | 105 | 13,0 |
PST142-690-70 | 75 | 132 | 142 | 13,0 |
PST175-690-70 | 90 | 160 | 175 | 21,5 |
PST210-690-70 | 110 | 184 | 210 | 21,5 |
PST250-690-70 | 132 | 220 | 250 | 23,0 |
PST300-690-70 | 160 | 257 | 300 | 23,0 |
PSTB370-690-70 | 200 | 355 | 370 | 31,0 |
PSTB470-690-70 | 250 | 450 | 470 | 31,0 |
PSTB570-690-70 | 315 | 560 | 570 | 52,0 |
PSTB720-690-70 | 400 | 710 | 720 | 55,0 |
PSTB840-690-70 | 450 | 800 | 840 | 60,0 |
PSTB1050-690-70 | 560 | 1000 | 1050 | 60,0 |
The operating voltage is 220..600V, normal start, Class 10, connection inside the "triangle"
Device type | Pn, kW (at 400V) | Pn, kW (at 500B) | In, And | weight, kg |
PST30-600-70 | 25 | 30 | 52 | 4,8 |
PST37-600-70 | 30 | 37 | 64 | 4,8 |
PST44-600-70 | 37 | 45 | 76 | 4,8 |
PST50-600-70 | 45 | 55 | 85 | 4,8 |
PST60-600-70 | 55 | 59 | 105 | 5,0 |
PST72-600-70 | 59 | 75 | 124 | 5,0 |
PST85-600-70 | 75 | 90 | 147 | 11,2 |
PST105-600-70 | 90 | 132 | 181 | 13,0 |
PST142-600-70 | 132 | 160 | 245 | 13,0 |
PST175-600-70 | 160 | 200 | 300 | 21,5 |
PST210-600-70 | 184 | 250 | 360 | 21,5 |
PST250-600-70 | 220 | 295 | 430 | 23,0 |
PST300-600-70 | 257 | 355 | 515 | 23,0 |
PSTB370-600-70 | 355 | 455 | 640 | 31,0 |
PSTB470-600-70 | 450 | 600 | 814 | 31,0 |
PSTB570-600-70 | 540 | 700 | 987 | 52,0 |
PSTB720-600-70 | 710 | 880 | 1247 | 55,0 |
PSTB840-600-70 | 800 | 1000 | 1455 | 60,0 |
PSTB1050-600-70 | 1000 | 1250 | 1810 | 60,0 |
The operating voltage is 400..690V, normal start, Class 10, connection inside the "triangle"
Device type | Pn, kW (at 400V) | Pn, kW (at 690B) | In, And | weight, kg |
PST30-690-70 | 25 | 45 | 52 | 4,8 |
PST37-690-70 | 30 | 55 | 64 | 4,8 |
PST44-690-70 | 37 | 59 | 76 | 4,8 |
PST50-690-70 | 45 | 75 | 85 | 4,8 |
PST60-690-70 | 55 | 90 | 105 | 5,0 |
PST72-690-70 | 59 | 110 | 124 | 5,0 |
PST85-690-70 | 75 | 132 | 147 | 11,2 |
PST105-690-70 | 90 | 160 | 181 | 13,0 |
PST142-690-70 | 132 | 220 | 245 | 13,0 |
PST175-690-70 | 160 | 257 | 300 | 21,5 |
PST210-690-70 | 184 | 315 | 360 | 21,5 |
PST250-690-70 | 220 Список отзывов пуст
|
