Softstarters – overview Type PSR - the compact range Type PSS - the flexible range Type PST/PSTB - the advanced range PSR3 ... PSR16 PSR25 ... PSR30 PSR37 ... PSR45 PSS18/30 ... 44/76 PSS50/85 ... 72/124 PSS85/147 ... 142/245 PSS175/3000/515 PST30 ... 72 PST85 ... 142 PST175 ... 300 PSTB370 ... 470 PSTB570 ... 1050 Softstarter, Type PSR 3 PSR 6 PSR 9 PSR 12 PSR 16 PSR 25 PSR 30 PSR 37 PSR 45 PSS 18/30 PSS 30/52 PSS 37/64 PSS 44/76 PSS 50/85 PSS 60/105 PSS 72/124 PSS 85/147 PSS 105/181 PSS 142/245 PSS 175/300 PSS 250/430 PSS 300/515 PST 30 PST 37 PST 44 PST 50 PST 72 PST 85 PST 105 PST 142 PST 175 PST 210 PST 250 PST 300 PSTB 370 PSTB 470 PSTB 570 PSTB 720 PSTB 840 PSTB 1050 (480 V), hp UL, Max. A 2 3.4 3 6.1 5 9 7.5 11 10 15.2 15 24.2 20 28 25 34 30 46.2 10 18 20 28 25 34 30 40 30 47 40 56 50 67 60 85 75 105 100 125 125 156 150 225 200 248 20 28 25 34 30 42 40 54 50 68 60 80 75 104 100 130 125 156 150 192 200 248 250 302 300 361 400 480 500 590 600 720 700 840 900 1062 (400 V), kW IEC, Max. A 1.5 3.9 3 6.8 4 9 5.5 12 7.5 16 11 25 15 30 18.5 37 22 45 7.5 18 15 30 18.5 37 22 44 25 50 30 60 37 72 45 85 55 105 75 142 90 175 132 250 160 300 15 30 18.5 37 22 44 25 50 37 72 45 85 55 105 75 142 90 175 110 210 132 250 160 300 200 370 250 470 315 570 400 720 450 840 560 1050 T4 T4 T5 T5 T5 T5 S6 S6 S7 S7 Normal start, In Line connected : 480V, 104 °F Manual Motor Starter, Type 480V, 104 °F MCCB Branch protection If using manual motor starter or an MCCB MS116 T2 Fuse protection 480 V, J Fuse Type 1 coordination will be achieved. MS116 MS116 MS116 MS116 MS325 MS450 MS450 MS450 based on UL, max A x 1.75 Using J fuses, Type 1 coordination will be 10 A 10 A 20 A 20 A 30 A 40 A 50 A 60 A 80 A achieved. To achieve Type 2 coordination for the PSS or PST(B) softstarters semiconductor fuses must be used. T2 T2 Type T2 T2 T2 T2 T3 T3 T3 T4 T4 170M1364 170M1366 170M1368 170M1369 170H1007 170H1007 170H1007 170H1007 170M1369 170M1370 170M1371 170H1007 170H1007 170H1007 170M3021 170M5013 170M5015 170H3004 170H3004 170H3004 Fused disconnect Fused disconnect OS30 10 A 5kA OS30 20 A 5kA OS100 80 A 5kA OS60 35A 5kA OS200 150A 10kA recommended J fuses. Short circuit current rating OS30 30 A 5kA OS60 40 A 5kA OS60 50 A 5kA OS60 60 A 5kA OS60 45A 5kA OS60 60A 5kA OS100 80A 5kA OS100 80A 5kA OS100 100A 5kA OS200 125A 10kA OS400 200A 10kA OS400 250A 10kA OS400 300A 10kA OS400 400A 10kA AC3 rated By-pass contactor, Type AC3 rated By-Pass, Type The line contactor is not required for the A9 A16 Thermal overload relay, Type Thermal overload relay, Type The overload relay is always required to protect the motor. TA25DU TA25DU TA25DU softstarter itself but often used to open if OL trips. A9 A9 TA25DU TA25DU A12 TA25DU A16 TA25DU A26 TA25DU A30 A40 TA25DU TA42DU A40 TA75DU A26 A30 TA42DU A40 TA75DU A40 A50 A63 TA75DU TA75DU TA75DU A95 A110 A145 AC1 rated By-Pass, Type Current transformers reduce the power loss of the softstarter but also to increase the number of starts/h. Built-in Built-in The current transformer is required if the current limit function of the PSS is used. Built-in - - - - - - - - - PSR PSS Transparent lid to protect the settings LED indications: On/Ready Run/Top of ramp Three rotating switches setting: -Start ramp (1–10 sec) -Stop ramp (0–20 sec) -Initial voltage (40–70 % of Ue) Built-in signal relays for Run (PSR3 ... 45) and TOR (PSR25 ... 45) Built-in signal relays for fault and by-pass LED indications: Power supply ON Completed start ramp TOP OF RAMP EXTERNAL FAULT GENERAL FAULT (motor side or unit) Three rotating switches setting: -Start ramp (1–30 sec) -Stop ramp (0–30 sec) -Initial voltage (30–70 % of Ue) A16 A26 A26 A40 A50 A50 A75 A110 A145 A145 A185 PSCT-75 PSCT-100 PSCT-125 PSCT-150 PSCT-200 PSCT-250 PSCT-400 PSCT-400 2 turns 1 turn 1 turn 1 turn 1 turn 1 turn 1 turn 1 turn 1 turn 1 turn 1 turn 1 turn 1 turn In-Line or Inside Delta for PSS and PST(B) PST/PSTB Programmable signal inputs Three separate terminals prepared for external by-pass (PST) Programmable signal relays LED indications: Four button keypad LCD-display with plain words in your language (13 different languages available) Dip-switch for In Line/ Inside Delta connection Clear information Terminals for PTC input and analog output Softstarters type PSS18/30...300/515 and PST30 ... 300, PSTB370...1050 can be connected inside the motor delta (compare the connection for standard Wye-Delta starters). In this case the current through the softstarter is reduced by 42 %. It will then be possible, for example, to run a 100 A motor using a 58 A PSS/PST Softstarter. Integrated advanced motor protection Symbol for torque control -Current limit 1.5 –4 x Ir (If used: Initial voltage fixed at 40 % of Ue) 170M1369 170H1007 170M1371 170H1007 170M1372 170H1007 170M3019 170H3004 170M3020 170H3004 170M3021 170H3004 170M5012 170H3004 170M5013 170H3004 170M5015 170H3004 170M5013 170H3004 170M5015 170H3004 170M5015 170H3004 170M5018 170H3004 170M6018 170H3004 OS60 60A 5kA OS100 80A 5kA OS100 100A 5kA OS200 125A 10kA OS200 150A 10kA OS400 200A 10kA OS400 300A 10kA OS400 400A 10kA OES600 400A 18kA OES600 500A 18kA 170M6020 170H3004 OES600 600A 18kA OES800 800A 30kA — — — — L900A 30kA L1200A 42kA 1 42kA 1 85kA A30 A40 A50 A63 A75 A110 A145 A185 A210 A260 A300 AF400 AF460 AF580 AF750 AF1350 AF1650 Built-in Built-in Built-in Built-in Built-in Built-in Built-in Built-in Built-in Built-in Built-in Built-in Built-in Built-in Built-in Built-in Built-in Built-in A16 A26 A30 A40 A50 A50 A75 A110 A145 A145 A185 A260 Built-in AF260 Built-in AF300 Built-in AF400 Built-in AF580 Built-in AF750 Built-in AF750 Integrated Integrated Integrated Integrated Integrated Integrated Current transformers PSCT-75 Protection 170M1369 170H1007 AC1 rated By-pass contactor, Type A30 PSCT-60 170M1368 170H1007 AC3 rated By-pass contactor, Type PSCT-50 Fault 170M1366 170H1007 A26 PSCT-40 Power on T3 A260 Current transformers, Type T3 OS400 250A 10kA PSCT-60 T2 TA450DU TA450DU A9 Built-in T2 OS60 45A 5kA TA200DU AC1 rated By-pass contactor, Type Built-in T2 Electronic overload relay TA110DU TA110DU TA200DU Built-in Built-in T2 Fused disconnect A210 Built-in T2 OES600 500A 18kA A185 The by-pass contactor can be used to Built-in T2 Fuse protection 65 kA (Max. fuse size), Semiconductor fuses, Bussman with fuse holder, Type 170M1372 170M3019 170M3020 170H1007 170H3004 170H3004 Suitable fused disconnect for the OS30 20 A 5kA T5 Fuse protection 65 kA (Max. fuse size), Semiconductor fuses, Bussman with fuse holder, Type OS30 10 A 5kA 480V, 104 °F MCCB Branch Protection, Type Integrated 58 A 100 A 100 A Integrated Integrated Integrated Integrated Integrated Integrated Integrated Integrated Integrated Integrated 1 PSTB840 and PSTB1050: Fused disconnect not available, use fuse holder, Bussman type, 170H3004. Integrated advanced motor protection Inside the PST Softstarter, you will find useful features for advanced motor and softstarter protection, including; programmable overload protection, high current, underload, phase imbalance, phase reversal, thyristor overload protection, and bypass monitoring to ensure proper by-pass operation. Programmable signal relays 100 A Fieldbus communication Inside Delta In-Line Integrated All PST units have three programmable signal relays where each relay can signal Run, Top of Ramp or Event. The Event setting can be used to signal protections, faults and warnings. The supervisory functions monitor not only software and critical softstarter functionality but also phase loss and out of frequency range. Integrated By-pass contactor On the larger sizes (PSTB 370 ... PSTB1050), there is an ABB AF contactor integrated. This gives you advantages in terms of cost saving, space saving and last but not least energy saving. With a bypass contactor you can reduce the power losses during normal run by 90 % or more. The smaller units, PST30 up to PST300, which are not equipped with a built-in by-pass contactor, have an extra set of three terminals on the line side. The terminals are marked B1, B2 and B3 and shall be used when connecting an external by-pass contactor. This will enable the integrated protection functions also when the softstarter is by-passed. External keypad (option) An external keypad is available as an option. The keypad can be mounted on a panel door for example to view/control the softstarter without opening the door. The keypad can also be used to copy parameters between different softstarters. Fieldbus communication The PST Softstarter has a built-in interface on the front for connection of the ABB FieldBusPlug used for fieldbus communication. Through this interface it is possible to control the softstarter, achieve status information, up- and down load of parameters. The interface between the softstarter and the FieldBusPlug is always the same. Independently of PST Softstarter size or delivery date it is possible to connect to any fieldbus protocol later on since this is defined in the FieldBusPlug itself. Available protocols are AS-Interface, DeviceNet, Profibus DP and Modbus-RTU. To connect the PST Softstarter to a fieldbus system you need the appropriate accessories as well as specific software for PLC set-up, which is available at www.abb-control.com on the Softstarter pages. Torque control The default setting is a normal voltage ramp but it is possible to select torque ramp. With the torque control function it is possible to start and stop motors with a more linear acceleration than when using the normal voltage ramps. During start this can be used to reduce the wear on the equipment driven by the motor. During stop, controlling the torque is especially useful for pump applications where voltage ramps can lead to a sudden torque drop which may result in water hammering and pressure surges. Torque control will keep these problems to an absolute minimum. Torque limit With the torque limit function enabled, the torque can never exceed a set value during start. This will minimize stress and wear on the equipment driven by the motor. Analog output With the PST(B) softstarter it is possible to have analog output signals to be used as input to a PLC or an analog meter. The output signals can be selected to be for instance the current of the motor, main voltage, active power or the temperature of the motor. The terminals used for analog output are also used for PTC protection, so only one of these functions can be used. Softstarters Panorama The Complete Range The complete range ABB offers three softstarter ranges The compact range, PSR3...45 covers motor currents from 3 to 45 A. p m o ec t ac Th n x e Th Th d ce .. 3 0. 3 8/ 1 SS P e, ng a er ibl e e fl 45 R PS , ge ra .. 3. , ge 5 1 TB T PS Do you have rough and jerky motor starts? High starting currents and torques? Or high current and torque peaks? an v ad O – • • Easy to install. Can either be snapped onto a DIN rail or screw mounted. – – • Real time clock – – • Programmable fault supervision functions – – • Programmable warning functions – – • PTC input for motor protection – – • High current protection motor currents from 18 A - 250 A “Inline” and up to 515 A “Inside Delta” configuration, offers a solution possible to adapt to almost any application: – – • Phase imbalance /phase reversal protection – – • Locked rotor protection – • • Thyristor overtemperature protection • With two connection possibilities, either in line with the motor or inside the motor delta. – – • Motor overload protection – – • Four button keypad (external keypad available) •Can be equipped with current limit. (possibility to limit the current during start) – – O External keypad •Easy to set up. With just three clearly labeled rotary switches on the front of the unit it is possible to adjust the softstarter for a wide range of applications. – O • Current limit control – • • In Line and Inside Delta connection • • • LED indications • – • Built-in by-pass contactor (On PSTB) • • • Ramp Start/Stop •Solid state electrical circuit ensures the highest reliability and reduces the need for maintenance to a minimum, even in applications with frequent starts and stops. The advanced range, PST(B)30...1050 Besides many functions this range also speaks your language. The range covers motor currents from 30 A to 1062 A “Inline” and up to 1810 A “Inside Delta” configuration. •Advanced integrated protection •Flexible bus communication system. •LCD display. With 13 languages, a menu system similar to your mobile phone, preprogrammed application settings and automatic status and event logging, it couldn’t be easier to set up and operate! •Programmable signal relays. •Integrated by-pass contactor on PSTB. •Torque control. •Analog output. PSS Field bus communication enabled – – • Torque control – – • Analog output PSR • Standard O Optional - Not available When it is important to have smooth start-up you can use a softstarter. Instead of switching directly to full voltage the softstarter ensures gradual voltage increase during start-up which naturally limits the current. PST ABB offers the most complete range of softstarters on the market. You can find all product-related documentation such as brochures, catalogs, certificates and drawings at: www.abb.com/lowvoltage Differences between different starting methods Graphs showing the basic differences between directon-line starting (DoL), wye starting and soft starting in terms of the motor voltage (U), motor current (I) and motor torque (T). rt + To ters rque /Soft st op con +C tr urre nt lim ol +N it/To o cu rque rren +N t pe limit o to a ks rque +Le pea ss m ks ech +Le a nica ss m l we ainte +N ar o pr nan odu ce ctio Res n br ult = eaks PRO FIT U 100 % DoL Wye Delta Softstart 70 % 30 % T DoL Wye Delta Adjustable ramp slope Softstart ABB Inc. 1206 Hatton Road Wichita Falls, TX 76302 Telephone 888-385-1221; 940-397-7000 Fax 940-397-7085 http://www.abb-control.com ABB Inc. 3299, J.B. Deschamps Lachine, QC H8T 3E4 Canada Telephone: 866-222-8368 (Mid-West & Pacific Region) 866-460-3300 (Ontario) 800-567-0283 (Atlantic & Quebec Region) Motor speed Quick guide for selection Normal start Class 10 Select size according to the motor HP ratings Typical applications • Centrifugal pump • Bow thruster • Conveyor belt (short) • Compressor • Escalator • Elevator Select one size larger than the motor HP ratings Motor speed Heavy duty Typical applications • Conveyor belt (long) • Centrifugal fan • Crusher •Mill • Mixer • Stirrer DoL Wye Delta Softstart Take the stress out of starting – use a Softstarter from ABB Heavy duty start Class 30 58 % Torque I Ben ABB efits w ith ’ + So s Sof t star ft st a Motor voltage Time Motor current Publication LV081 No. 1SXU 132 081 B0201 Printed in USA, January, 2008 The flexible range, PSS18...300 which is intended for Why soft start? n ra • The compact design makes its possible to fit more pro ducts on a given mounting surface. • Clear setting instructions are provided on the front. Softstarters for every customer need... S .. P . 30 0 05 51 / 00 ! If more than 10 starts /h Select one size larger than the standard selection.
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