Soft-Starter Arrancador Suave Soft-Starter SSW-08
Contents
1. 223 222 l A e X Grounding bar Grounding Sar internal to the panel f f I f ___ internal to the panel Figure 3 8 Grounding connections for more than one Soft Starter SSW 08 EMI Electronic Interference The Soft Starter SSW 08 is developed to be used in industrial systems Class A according to Standard EN60947 4 2 It s necessary to have a distance of 0 25 m 10 in between the Soft Starter SSW 08 and the cables between the Soft Starter SSW 08 and the motor Example CLP wiring temperature controllers thermocouple cables etc Grounding of the Motor frame Always ground the motor frame Ground the motor in a panel where the Soft Starter SSW 08 is installed The Soft Starter SSW 08 output wiring to the motor must be installed separately from the input wiring as well as from the control and signal wiring CORRECT CORRECT INCORRECT INCORRECT ATTENTION A Only the motor frame shall be grounded 18 SSW 08 ueg Installation and Connection 3 2 7 Control and Signal Connections The control connections digi2. 1 1 3 PRELIMINARY RECOMMENDATIONS J J J 1 2 GENERAL INFORMATION 2 1 ABOUT AAA AA AINA ANA AA 3 2 2 ABOUT THE SOFT STARTER SSW 08 u uu u u 3 2 3 SOFT STARTER SSW 08 IDENTIFICATION PLATE J J 5 2 4 RECEIVING AND STORAGE NAKINABANG 7 3 INSTALLATION AND CONNECTION 3 1 MECHANICAL INSTALLATION U LL uuu 8 3 1 1 Environmental Conditions iSANG 8 3 1 2 Soft Starter SSW 08 Dimensions J J 8 3 1 3 Mounting AAPP u UL UL An 9 3 1 3 1 Mounting Inside a Panel u u UU U UQ 10 3 1 3 2 MOUNTING on Surface uu U uu u A 11 3 2 ELECTRICAL INSTALLATIQON L u u uu uuu 11 3 2 1 Power TermihalS RARE 12 3 2 2 Location of the Grounding Control and Power Connections 13 3 2 3 Recommended Power and Grounding Cables 13 3 2 4 Power Supply Connection to the Soft Starter SSW 08 14 3 2 4 1 Power Supply Capacity 111 734 KIRARA GR 15 3 2 4 2 Rec
3. Time t s 10000 1000 AA Hi TIN TNS IN MEIN Class 30 Class 25 Class 20 Class 15 Class 10 La a Class 5 S E 1 k ix 13x 4x 5x 6x 7x Bx 9x x In motor 2 a ss iio Re Es dn a a current Figure 4 8 Thermal classes of motor protection in cold condition 30 SSW 8 E Setting the SSW 0 Time t s 1000 IZA Class 30 Class 25 Class 20 Class 15 Class 10 Ny Class 5 x In motor Current 1x 2x 8x 4x 5x 6x 7x amp 9x SF Figure 4 9 Motor protection thermal classes in hot condition at 100 In 0 1 fe TA eed TAGE VOLTAGE CURRENT staet ME MERET TAE ORAMP LIMIT AEn TF O OFF ON KICK START GAN arr co lomo C OVERCURRENT N 22 90 450 OFF ONO I PHASE LOSS 30 150 OFF ONO PHASE SEQ SFF DOI ono sa ee CURRENT OF mo OVERLOAD QMAN L J AUT w Z SQ So Tl Overload Protection Enabling XO Sya STATUS i sia K 100 Crest aur DIP Swicth 50 RUN THERMAL GLASS W 20 W 5 READY o FACTORY O OFF ON OFF GFF ON ON A
4. 26 SSW 8 Weg Setting the SSW 08 NOTE The Initial Voltage trimpot has an initial voltage setting function only when the kind of control is programmed to start with a voltage ramp 4 4 CURRENT LIMIT SETTING This setting defines the maximum limit of the current from phases R and S during motor starting in percentage of the nominal current of the Soft Starter If the current limit is reached during the start of the motor Soft Starter SSW 08 will maintain the current at this limit until the motor reaches nominal speed If the current limit is not reached the motor will start immediately The current limitation should be set to a level that the motor acceleration can be observed otherwise the motor will not start Current Limit Setting Trimpot Y KICK INITIAL VOLTAGE START TIME CURRENT LIMIT CA OM 30 150 ACCEL DECEL MOTOR M URREN LG Figure 4 4 Current limit setting NOTE If at the end of the acceleration ramp set at the Trimpot Acceleration Time full voltage is not reached a start timeout Fault will be shown This fault is indicated through the Fault LED flashing twice with the Ready LED on The trimpot Current Limit has a Current Limit setting function only when the kind of control is programmed to start with a Current Limit SSW 08 27 Setting the SSW 08 Weg 4 5 ACCELERATION RAMP TIME SETTING When Soft Starter SSW 08 is programmed to Voltage
5. J J J 28 4 6 DECELERATION RAMP TIME SETTING J J T J J 28 4 7 MOTOR CURRENT SETTING LLULLU uuu 29 4 8 MOTOR ELECTRONIC OVERLOAD PROTECTION J J 30 4 9 RESE Tocina 32 4 10 DI2 DIGITAL INPUT SETTING UU 32 4 11 OUTPUT RELAY OPERATION LLULLU 33 ummar Summary O 5 6 8 PROGRAMMING INFORMATION AND SUGGESTIONS 5 1 APPLICATIONS AND PROGRAMNMINGQ U J 34 51 1 Voltage Ramp Starting u uu A AA 35 5 1 2 Current Limit Starting U LL UA 36 5 1 3 Starting with Pump Control P202 2 u u 36 5 1 4 Programming the control type in pump control 38 5 2 PROTECTIONS AND PROGRAMMINGQ U J J J 38 5 2 1 Suggestion on How to Program the Thermal Class 38 5 2 2 Service AA 41 SOLUTION AND TROUBLESHOOTING 6 1 FAULTS AND POSSIBLE CAUSES l U UU u U Uu u UU U U U UU NGA 43 6 2 TROUBLESHOOTING AAPP A 46 6 3 PREVENTIVE MAINTENANCE ivscscctccsscscccsccssececestsesssc
6. 1 3 PRELIMINARY RECOMMENDATIONS DANGER Only personnel with suitable qualification and familiar with the Soft Starter SSW 08 and associated equipment should plan or implement the installation start up operation and maintenance of this equipment These personnel must follow all safety instructions in this manual and or defined by local regulations Failure to follow these safety instructions may result in personnel injury and or equipment damage gt SSW 08 1 Safet Instructions Weg NOTE In this Manual qualified personnel are those trained to 1 Install ground power up and operate the Soft Starter SSW 08 according to this manual and the required safety procedures 2 Use protection equipment according to established regulations 3 Give First Aid DANGER Always disconnect the general power supply before touching any electrical component associated to the Soft Starter SSW 08 High voltage may be present even after the power supply is disconnected Wait at least 3 minutes for the total discharge of the capacitors Always connect the equipment s heatsink to the protection ground PE at the proper connection point AN ATTENTION All electronic boards have components that are sensitive to electrostatic discharges Do not touch these components or connectors directly If necessary first touch the grounded metallic heatsink or use a suitable grounded wrist strap D
7. 13 F and 65 C 149 F 1 hour at 40 C 40 F is permitted Table 2 1 Dimensions of the package in mm in 221 180 145 5768 1 65 8 70 7 09 5 71 352 2 3 64 260 198 245 12613 3 82 10 24 7 80 9 65 770 8 8 42 356 273 295 28670 8 36 14 02 1075 11 61 1750 18 43 415 265 320 35192 10 5 16 34 10 43 12 6 2147 23 2 y EE Ele ell a H s E e q Figure 2 5 Dimensions of the package SSW 08 7 Installation and Connection Weg 3 INSTALLATION AND CONNECTION This chapter describes the procedures for the electrical and mechanical installation of the Soft Starter SSW 08 The guidelines and suggestions must be followed for the correct operation of the Soft Starter SSW 08 3 1 MECHANICAL INSTALLATION 3 1 1 Environmental Conditions The location of the Soft Starters SSW 08 is an important factor to assure the correct operation and high product reliability Avoid Direct exposure to sunlight rain high moisture and sea air Exposure to explosive or corrosive gases and liquids Exposure to excessive vibration dust or any metallic and or oil particles in the air Allowed Environmental Conditions Surrounding air Temperature O C to 55 C 32 F to 131 F nominal conditions
8. DEFAULT o OFF ON OFF ON OFF ON Vas Thermal class adjustment DIP Switches Figure 4 10 Overload protection Enabling and Adjustment SSW 08 31 Setting the SSW 08 Weg NOTES O Adjust the motor current according to chapter 4 7 for the correct function of the overload protection This protection is based on Three Phase IP55 Standard WEG motors If your motor is different we recommend to adjusting a lower thermal class For more details refer to chapter 5 2 When SSW 08 is without the electronic supply voltage At and A2 the thermal image is saved internally When the supply A1 and A2 is reestablished the thermal image returns to the value prior to the electronic supply loss The RESET of the electronic overload protection can be set to manual function man In this case the RESET must be made via digital input 2 DI2 or through the RESET key If the RESET setting is automatic auto the fault condition will automatically be reset after the cooling time The thermal image is set to zero when the overload protection is disabled 4 9 RESET A fault condition can be reset using the RESET key at the front of the SSW 08 or through a push button 0 5 seconds at DI3 digital input for RESET Another way to reset the SSW 08 is by switching Off On the electronic power supply A1 and A2 NOTE O The SSW 08 also allows for the possibility of automatic RESET by enabling this function through the DIP Switch auto
9. 10705995 S0A 80 4 66URDSOTTFOO8O 170Mi366 10707110 45A 100 8 6 8URD8OTTFO100 170M1367 10701724 0824053 10824109 255A 500 90 66URDSSTIFOSOO 170M8171 10833056 865A 630 238 66URDSSTIFOSSO 170M8173 412A 700 30 6 8URD33TTFO700 170M6161 NOTE The maximum Pt of the SSW 08 255A fuse is smaller than 200A because of the thyristor constructive type used on this soft starter SSW 08 15 Installation and Connection Weg 3 2 4 3 Recommended Contactors When the SSWOB is used in applications that require an isolator contactor according to the figure 3 10 K1 the use of WEG contactors is recommended Table 3 8 Recommended contactors s m Model 71 3 2 5 Soft Starter SSW 08 Connection to the Motor DANGER A Power factor correction capacitors must never be installed at the output of the Soft Starter SSW 08 U 2T1 V 4T2 and W 619 ATTENTION A To ensure that the protections based on the current reading and display operate correctly for example the overload the motor nominal current must not be lower than 50 of the nominal Soft Starter SSW 08 current NOTE O Use the wire sizes and fuses recommended in tables 3 5 3 6 and 3 7 The connector tightening torque is indicated in table 3 4 Use only copper wires NOTE O The Soft Starter SSW 08 is provided with electronic protection against motor overload Thi
10. 11 Recommended set up with commands via three wire digital inputs and a circuit breaker SSW 08 21 3 Installation and Connection Weg NOTE It s necessary to program the digital input DI2 for the three wire command function Refer to item 4 10 NOTE The RL1 shall be set to the No fault function Refer to item 4 12 3 3 3 Recommended Set up with Command via Two wire Digital Inputs and Direction of Rotation P220 1 P280 1 R P263 1 DI Start Stop two s gt wires P265 4 DIS Rotation Direction pg P277 4 RL1 FWD REV Ki P278 4 RL2 FWD REV K2 Refer to notes in item 3 3 Figure 3 12 Recommended Set up with Command via Two wire Digital Inputs and Direction of Rotation NOTE To program the parameters shown above is necessary the use of keypad or serial communication See the Programming Manual for more information 22 SSW 08 ueg Installation and Connection 3 3 4 Recommended Set up with Command via Two wires Digital Inputs and DC Braking P220 1 als 2 P263 1 DI Start Stop two wires P265 5 DI3 Brake Off P277 1 RL1 Running P278 5 RL2 DC Braking P501 gt 1 DC Braking Time gt 19 SOI CC IS Refer to notes in item 3 3 lt gt A o RST Al A2 DIT DIZ DIS 13 2x SSW 08 Figure 3 13 Recommended Set up with Command via Two wires Digital Inputs and DC Braking NOTE
11. 17 A to 200 A models and 80 joules 255 A to 412 A models NOTE Use the wire sizes and fuses recommended in tables 3 5 3 6 and 3 7 The connector tightening torque is indicated in table 3 4 Use only copper wires 70 C 158 F 14 SSW 08 Weg Installation and Connection 3 2 4 1 Power Supply Capacity The Soft Starter SSW 08 is suitable to be used in a circuit capable of supplying not more than X according to table 3 6 symmetrical rms amperes Y maximum volts when protected by ultra rapid fuses Table 3 6 Maximum current capacity of the Power supply Model X kA L AWHA 5 m AA The SSW 08 can be installed on power supplies with a higher fault level if it is protected by ultra rapid fuses with an adequate interrupting current and an Pt according to item 3 2 4 2 3 2 4 2 Recommended Fuses High speed fuses must be used at the input wich will protect the SSW 08 against short circuit It is possible to use other protection devices that will protect the installation however in that case the SSW 08 will remain unprotected The fuse rated current should preferably be equal or greater the motor starting current to avoid cyclic overloads and fuse opening in the forbidden region of the Time x Current curve Table 3 7 Recommended fuses ssw oa Nominal Maximum Ea A 1 os x Ns Mersen Bussmann DNA 50 072 6 6URDSOTTFOOSO 170M2611 10806688 CDMA 80 4 66URDSOTIFOOBO 170M1366
12. S HOS AY y S UY P O 10 S pjay uondo Su L INOYVIN38Y sl pouu yzLp 01 GGZ ay 104 luO 2 V ZLY O v OSL sjopow 104 JUO 1 V clv clvO V 99 S9 0 V cle Leo V 96c SScO General Information te DEN 074 O 80g Addns soluo1o 3 GH g JEN OEL ol OLL Addns SOluo1o9 3 H pJepueis puepuels qUelg qUelg BJeM J0S SJEMPIEH jeloads jeloeds w OSdl dl puepuels qUuelg UONIS OJA jo aaubag jeuondo UUM O pJepueis S euondo iddns J8mMod 9seyd aaly DEN 919 07 V 00c 0020 V L HO V OEL OSLO V 98 9800 V 9 1900 V Sv Sv00 V 06 0800 V vc vcOO V Z ZL00 JUSLIND JEUIWON 80 MSS podxg X3 Izeg yg 80 MSS S 4 19HE S HOS DIM ENUEIAADAMEIN TIGOW 80 MSS AHL AdI93dS OL MOH 6 SSW 08 ueg General Information 2 4 RECEIVING AND STORAGE The Soft Starter SSW 08 is supplied in a cardboard box On the outside of the package there is an identification plate which is identical to the one placed on the Soft Starter SSW 08 To open the package 1 Put it on a table 2 Open the package 3 Take out the Soft Starter Check if The Identification plate of the Soft Starter SSW 08 matches the model purchased Damage has occurred during transport If so contact the carrier immediately a If the Soft Starter SSW 08 is not installed immediately store it in its package in a clean and dry place with temperature between 25 C
13. Troubleshootin Table 6 1 Faults and possible causes cont Protection Description and Activation Description Probable Causes Fault Display Internal When there is a fault with the internal Loose contact in the starting cables of By pass relay By pass relay contacts at full voltage the Internal By pass relays contact Open Defective By pass relay contacts due to an overload E71 LED Fault Flashes 3 times LED Ready Off Overcurrent Activates before the closing of the The time programmed for the before the By pass if the current is greater than acceleration ramp is shorter than the By pass 37 5 A for the SSW models up to 30 A lactual acceleration time 200 A for the SSW models from 45 7 Nominal motor current higher than the Power on E72 to 85 A current that can be supported by the Reset key 260 A for the SSW model of 130 A Soft Starter Auto reset LED Fault 400 A for the SSW models from 171 Motor shaft is locked rotor blocked Dix Flashes 4 times and 200 A LED Ready 824 A for the models from 255 A to Off 412 A Frequency out of When the limit is higher or lower than The line frequency is out of range tolerance the limits of 45 to 66 Hz When the Soft Starter motor are being supplied by a generator that is E75 not supporting the full load or the start of the motor LED Fault Auto reset Power on Reset key Flashes once Dix LED Ready Off Closed When the SSW 08 does not detect Bad con
14. figure 4 8 in cold condition one can see the minimum Thermal Class that will allow the start with a reduced voltage For 3 x In of the motor 17 s the next highest is adopted Class 10 2 In the graph figure 4 9 in hot condition one can see the maximum Thermal Class that the motor can stand due to the stall time in hot condition For 6 6 x In of the motor O 12 s the next lowest is adopted Class 30 One now knows that Thermal Class 10 allows a start and Thermal Class 30 is the maximum limit Thus a Thermal Class between the two should be adopted according to the quantity of starts per hour and the interval of time between Off On procedures the motor The closer to Class 10 the more protected the motor will be the fewer the starts per hour and the greater the interval of time must be between Off On procedures the motor The closer to Class 30 the closer it gets to the maximum limit of the motor thus there can be more starts per hour and lower intervals of time between Off On procedures the motor 5 2 2 Service Factor When the Service Factor S F is different from 1 00 and if there is the need to use it in the application this must be considered in the setting of the overload protection To avoid tripping of the overload protection when the service factor is used the nominal motor current set at the SSWO8 must be readjusted If an acessorie with parameter access is used the service factor can be set direcly in the P406 avoiding th
15. phase sequence E67 LED Phase Seq Flashing Undervoltage Activates when the control supply inthe control voltage is lower than 93 Vac supply E70 LED Fault Flashes twice LED Ready Off 44 SSW 08 Probable Causes Incorrect setting of the Motor Current trimpot motor current set The set value is too low for the motor being used Starting sequence greater than allowed Programmed thermal class too low Time between Off On procedures lower than that permitted by the motor power refrigeration time Load on the motor shaft too high Thermal protection value saved when the control is turned off and brought back when turned back on Programmed time for the acceleration ramp inferior to what is needed Value of the programmed current limitation too low Motor locked rotor blocked Programmed acceleration ramp time lower than the actual acceleration time Motor shaft is locked The transformer that supplies the motor can be saturating and taking too much time to recover from the starting current Power on Reset key Auto reset Dix Short circuit between phases Momentary motor overload Motor shaft is locked rotor blocked Network phase sequence inverted at the input May have been changed in another place of the supply network Electronics supply lower than the minimum value Electronics power supply with loose contact Electronics power supply fuse blown E Solution and
16. sizes and configurations depending on the Soft Starter SSW 08 model as shown in figures 3 5 and 3 6 Terminals R 1L1 S 3L2 and T 5L3 AC supply line U 2T1 V 4T2 and W 6T3 Motor connection besses Las KY 8 ES 02922 ST m m m Models 17 A to 85 A Models 130 A to 412 A Figure 3 5 Power terminals 12 SSw 08 E Installation and Connection Table 3 4 Maximum torque for power connection Line Motor Grounding SSW 08 Enclosure Torque Torque Model Size kagad ermina in Tb in 1b ai e a le 24 Size 01 Terminal a 30 A 5 32 40 45 A 5 6 61 A Size 02 Terminal j 85 A enen 63 130A KI 171 A Size 03 j 5 200 A FW N a BA e x 3 2 2 Location of the Grounding Control and Power Connections Control Control Grounding Te a 8000908 L Control BED 008 Control J CI r oa ph eso 84 8 628 OTIN 3 34 2 48 Hip 1 43 lu Grounding Grounding Grounding Dimensions in mm in Figure 3 6 Location of the grounding control and power connections 3 2 3 Recommended Power and Grounding Cables The described specifications in table 3 5 are valid only for the f
17. these free spaces are described in table 3 2 38 M4 7 28 IP20 3 1 3 Mounting Specifications Table 3 2 Recommended free spaces Install the Soft Starter SSW 08 in the vertical position according to the following recommendations 1 Install on a reasonably flat surface 2 Do not put heat sensitive components immediately above the Soft Starter SSW 08 ATTENTION A If a Soft Starter SSW 08 is installed on top of another use the minimum distance A Band diverge from the top Soft Starter the hot air that comes from the one beneath it ATTENTION Independent conduits or cable trays must be planned for physic separation of signal control and power cables Refer to item 3 2 Electric Installation SSW 08 9 El Installation and Connection Figure 3 2 Free spaces for ventilation 3 1 3 1 Mounting Inside a Panel For Soft Starters SSW 08 installed in panels or closed metallic boxes exhaustion cooling is required so the temperature does not exceed the maximum allowed Refer to dissipated nominal power in table 3 3 Table 3 3 Dissipated power for ventilator panel dimensioning Dissipated Average Power ea Power dissipated dissipated in the 10 starts h P 10 starts h electronics 3xIn 20s W W 3xIn 20s 36 412A 10 SSW 08 Weg Installation and Connection 3 1 3 2 Mounting on Surface Figure 3 3 shows the installation of the Soft Starte
18. Automatic RESET occurs after 15 minutes in the following conditions Overcurrent Phase loss Stall Overcurrent before By pass Frequency out of range Contact of the internal By pass relay is open Power control supply undervoltage External fault For incorrect phase sequence there is no automatic RESET For electronic overload of the motor there is a specific algorithm for the automatic RESET time 4 10 DI2 DIGITAL INPUT SETTING In the factory default the DI2 digital input has its function programmed for the reset of faults DI2 can also be programmed to work as a three wire control The three wire control allows the Soft Starter to be commanded through two digital inputs DI as an ON input and DI2 as an OFF input This allows for the direct placement of two push buttons Refer to item 3 3 2 To change the DI2 digital input follow the instructions below 1 To enter in programming mode maintain the reset key at the front of the SSW 08 pressed for 5 seconds Maintain the reset key pressed during programming 2 When in programming mode two LEDs will turn on overcurrent and phase loss indicating that DI2 is programmed for fault Reset When three LEDs turn on overcurrent phase loss and phase sequence it indicates that the DI2 is programmed for three wire commands 32 SSW 8 Weg Setting the SSW 08 oo To change the programming to three wire commands move the overcurrent DIP Switch and return
19. EG I Stock Item SSW 08 Model Serial Number Software Number Version Pa eq made in BRAZIL WOAH AN I T 99125 40367 MOD BRSSW080085T5SZ MAT 10874630 V1 34 BE Input Data Voltage OP 15664338 SERIAL 1011346178 14H Number of Phases REDEILINE 220 575V 3 85A 50 60Hz gt BRSSW080085T5SZ 10874630 1011346178 Current and Frequency ALIM CONTR CONTROL SUPPLY 94 264V AC 50 60Hz k LOr A par LISTE C 16KM Control Power Supply Data 7899125403673 Voltage Frequency Manufacturing date 14 corresponds to week and H to year Figure 2 3 Soft Starter SSW 08 identification plate Position of the Identification Plate on the Soft Starter SSW 08 FRONTAL VIEW SOPT STARTER Figure 2 4 Detail of the Soft Starter SSW 08 identification plate SSW 08 5 V ZLY O V OSL WOJ 00dl PUB y 98 Ol V L WO Ozdl UOnOaJOJy JO Baibag Se p quos p si epos siy q pauljap se jonpold pJepuejs ay Z Jane ey UUM patajdwoo s apoo au nun ocu nb s 1989100 au ul mo pai eq 1snu spje y feuondo Aue si 3194 J asanbn Hog pue ysiueds usiI6u3 ul aping s 1esn BU YUM indu eseyd aa1y O A 9 9 O A OZ PUE Y YUM BO MSS 19H8 S 0S pippue S 7591 10080MSSXI duuex JO4 pus y Je Z Jane ou md sAgM y alay spua epos y plepuejs y Ieuondo Aue epnjaul IM y JI JO UOJSJSA pAepue s e aq Im BO MSS 19H8
20. Motor voltage Motor voltage Motor voltage Moror YO lage Model Hoi T WI V Se RAT V MES aT V aR V NA e s 0 15 Bo 92 6 0 IC O LA 22 15 40 30 5o 3 566 3 6 4 5 l L a I G 22 j 5 OA l l e s doa 50 7 75 55 100 75 125 90 125 90 mA I1 2 A O mo re Es 200A 75 55 125 90 150 110 200 150 200 150 PAI m mo i2 20 10 20 s 20 e SRA 125 90 200 150 250 185 300 350 440 NOTE The maximum powers indicated in table 8 1 are based on 3 x nominal current of Soft Starter SSW 08 during 20 s and 10 starts per hour 3xIn 20 s SSW 08 49 El Technical Characteristics 8 3 POWER DATA Power Supply Power Voltage R 1L1 S 3L2 T 5L3 220 to 575 Vac 15 96 to 10 96 or 187 to 632 Vac 50 to 60 Hz 10 or 45 to 66 Hz with optional ventilation Kit Capacity Maximum number of starts per hour 10 1 every 6 minutes models from 17 A to 30 A and without ventilation 255 Ato 412 A 3 1 every 20 minutes models from 45 A to 200 A Maximum number of starts per hour 10 1 every 6 minutes models from 45 A to 200 A I 8 4 ELECTRONICS AND PROGRAMMING DATA Power Supply Control voltage m 110 to 240 Vac 15 to 10 or 94 to 264 Vac models from Connector Al A2 17 Ato 200A m 110 to 130 Vac or 208 to 240 Vac 15 96 to 10 96 models
21. Motors Automation Energy Transmission amp Distribution Coatings Soft Starter Arrancador Suave Soft Starter SSW 08 User s Manual Manual del Usuario Manual do Usu rio of BONE lA El Soft Starter User s Guide Manual del Usuario del Arrancador Suave Manual do Usu rio da Soft Starter Date Data 03 2011 Summary of revisions Sumario de las revisiones Sumario das revis es The information below describes the revisions in this manual Revision 73739 Description Revision after the size 4 UL certification Changed item 3 2 figure 3 4 figure 3 5 item 3 2 4 1 3 2 4 2 3 2 7 3 3 5 2 2 E77 in the table 6 1 table 8 1 Included new functions of software version V1 4x Descripcion Primer Edici n Inclusi n Mec nica 4 Correcci n luego de la certificaci n UL de la mec nica 4 Modificado item 3 2 figura 3 4 figura 3 5 item 3 2 4 1 3 2 4 2 3 2 7 3 3 5 2 2 E77 en la tabla 6 1 tabla 8 1 Inclusi n de las nuevas funciones de la version de software V1 4x Correc o depois da certificac o UL da mec nica 4 Alterado item 3 2 figura 3 4 figura 3 5 item 3 2 4 1 3 2 4 2 3 2 7 3 3 5 2 2 E77 na tabela 6 1 tabela 8 1 Inclus o das novas fun es da vers o de software V1 4x El Eg Summar 1 SAFETY INSTRUCTIONS 1 1 SAFETY NOTICES IN THE MANUAL 11110111a rr rana u u uu uu uu 1 1 2 SAFETY NOTICES ON THE PRODUCT
22. R CURRENT SETTING This setting defines the ratio of the SSW 08 current and the motor current The value of the setting is very important since it defines the protection of the motor driven by the SSW 08 The setting of this function interferes directly in the following motor protections m Overload Overcurrent Stall Phase loss Calculation Example SSW 08 Used 30 A Motor Used 25 A Trimpot for the Motor Current Setting Motor Current Setting motor SSW 08 25 A Motor Current Setting 29 Motor Current Setting 0 833 Therefore it must be set at 83 KICK INITIAL VOLTAGE START TIME CURRENT LIMIT DECEL MOTOR TIME CURRENT Motor Current Setting Trimpot Figure 4 7 Motor current setting SSW 08 29 Setting the SSW 08 Weg 4 8 MOTOR ELECTRONIC OVERLOAD PROTECTION The motor electronic overload protection simulates the heating and cooling of the motor also known as thermal image This simulation uses as input data the True rms current When the thermal image passes the limit the overload protection trips and turns the motor off The adjustment of the thermal class is based on the motor locked rotor current and locked rotor time With this data it is possible to find a point in the figure to determine which thermal class protects the motor Please refer to figure 4 8 for cold stall time or to figure 4 9 for hot stall time The thermal classes below the point protect the motor
23. Ramp control this is the voltage increment ramp time When Soft Starter SSW 08 is programmed to Current Limit control this time is used as the maximum starting time working as a protection against blocked rotors KICK INITIAL VOLTAGE START TIME CURRENT LIMIT DECEL MOTOR CURRENT TIME Acceleration Ramp Time Setting Trimpot Figure 4 5 Acceleration ramp time setting NOTE O The programmed acceleration time is not the exact motor acceleration time but the time of the voltage ramp or the maximum starting time The motor acceleration time depends on the motor characteristics and the load Please consider that in cases where the relation of the SSW 08 current and the motor nominal current is 1 00 the maximum time that the SSW 08 can work with 3 x In is 20 seconds 4 6 DECELERATION RAMP TIME SETTING Enables and sets the time of voltage decrease This setting should be used only for the deceleration of pumps to reduce the water hammer This setting must be made to achieve the best pump performance NOTE This function is used to lengthen the normal deceleration time of a load and not to force a lower time than that imposed by the load itself KICK INITIAL NOLTAGE I TIME s LIM 450 Me 1150 NEL DE EL MOTOR O e E Deceleration Ramp Time Setting Trimpot Figure 4 6 Deceleration ramp time settin 28 SSW 8 9 ds 9 leg Setting the SSW 08 4 7 MOTO
24. Relative air moisture 5 to 90 Yo with no condensation Maximum altitude 1 000 m 3 300 ft above sea level nominal conditions From 1 000 m to 4 000 m 3 300 ft to 13 200 ft above sea level current reduction of 1 96 for each 100 m 330 ft above 1 000 m 3 300 ft Pollution degree 2 according to the UL508 Normally only non conductive pollution Condensation must not cause conduction in the particles in the air 3 1 2 Soft Starter SSW 08 Dimensions The external dimensions and mounting holes are shown in figure 3 1 and table 3 1 below A P 7177 _ oo On T F oo ao i HP HA Pi MN tit Lis pad Figure 3 1 SW 08 dimensions 8 SSW 08 Installation and Connection Table 3 1 Installation data with dimensions in mm in Width Depth L P mm mm in in 162 95 157 8 120 5 6 38 3 74 6 18 3 35 4 72 0 20 0 16 5 4 2 A 208 144 203 132 148 3 4 85 A 8 19 5 67 7 99 5 2 5 83 0 24 0 13 mA 200 A 10 9 8 78 8 66 819 8 27 0 3 0 2 331 22 242 200 280 15 9 13 0 8 94 9 53 7 87 11 0 0 59 0 35 IP20 with optional 7 6 9 2 To install the Soft Starter SSW 08 leave at least the free spaces surrounding the Soft Starter as in figure 3 2 below The dimensions of
25. To program the parameters shown above is necessary the use of keypad or serial communication See the Programming Manual for more information SSW 08 23 Installation and Connection 3 3 5 Symbols Electrical connection between two signals Connection terminals Relay or contactor coil Normally open contact NO Indicator light A Circuit breaker Paa opens under load Resistor Capacitor 24 SSW 08 O ONT El Fuse Thyristor SCR Three phase motor Emergency button Transformer N O Contact with retention Normally closed NC push button Normally open NO push button Circuit breaker with undervoltage release Weg Setting the SSW 08 4 SETTING THE SSW 08 This chapter describes how to make the necessary settings for the correct functioning of the SSW 08 4 1 CONTROL TYPE SETTING DIP Switch Control Type Setting Figure 4 1 Control type setting Select the type of starting control that best adapts to the application Voltage Ramp Starting This is the most commonly used method Very easy to program and set The Soft Starter SSW 08 imposes the voltage applied to the motor Generally applied to loads with a lower initial torque or a square torque This kind of control can be used as an initial working test Current Limit Starting The maximum current level is maintained during the s
26. crsessccccessassnccusstssnnccestsesacccessdeccccesstsencecertsencaces 47 7 OPTIONS AND ACCESSORIES AAA A 48 TECHNICAL CHARACTERISTICS 8 1 NOMINAL POWERS AND CURRENTS ACCORDING TO ULS508 49 8 2 NOMINAL POWERS AND CURRENTS FOR STANDARD IP55 IV POLE WEG MOTOR 49 8 3 POWER DATA uu l Aaa 50 8 4 ELECTRONICS AND PROGRAMMING DATA 50 leg Safety Instructions 1 SAFETY INSTRUCTIONS This Manual contains the necessary information for the correct use of the Soft Starter SSW 08 It was written to be used by qualified personnel with suitable training or technical qualifications to operate this type of equipment 1 1 SAFETY NOTICES IN THE MANUAL The following safety notices will be used in the text DANGER A Failure to observe the recommended procedures may lead to serious or fatal injuries and considerable material damage ATTENTION A Fallure to observe the recommended procedures in this notice may lead to material damage NOTE O Important information for the correct understanding and good function of the product 1 2 SAFETY NOTICES ON THE PRODUCT The following symbols may be attached to the product as a safety notice High Voltages Components are sensitive to electrostatic discharge Do not touch them Mandatory connection to ground protection PE HES
27. e readjustment of the nominal currrent Example of readjustment of the nominal current sis 30 A 25A 15 MOTOR x S F 25 A x 1 15 30 A 96 MOTOR SSw08 Setting of the Motor Current ATTENTION The increased motor current has direct impact on the maximum thermal class that protects the motor even if the S F parameter is set SSW 08 41 El Programming Information and Suggestions Determine the maximum thermal class considering the service factor Stall Current 6 6 x In Hot Stall Time 6s Service Factor 1 15 Before the maximum thermal class is verified in figure 4 9 the stall current must be divided by the service factor Stall Current S F 6 6 1 15 5 74 t s Hot 25 20 15 0 xin 5 74 x In of the motor Figure 5 12 Checking of the maximum thermal class considering the S F Class 20 is the highest class that protects the motor if the service factor is used 42 SSW 08 ueg Solution and Troubleshooting 6 SOLUTION AND TROUBLESHOOTING 6 1 FAULTS AND POSSIBLE CAUSES When a fault is detected the Soft Starter is disabled and the Fault Code is displayed by flashing LEDs To restart the Soft Starter after a fault has occured it must be reset In general resetting can be done as follows Protection Description and Fault Display Phase loss or Undercurrent E03 LED Phase Loss Flashing Over temperature in the pow
28. er section E04 LED Fault Flashes once LED Ready On Disconnecting and reapplying the AC power power on RESET Pressing the RESET key in the SSW 08 front panel RESET key Automatically by the automatic RESET Enable this function via DIP Switch auto Via digital input DI2 or DIS Table 6 1 Faults and possible causes Activation Description At starting It occurs when there is no voltage in the power supply terminals R 1L1 S 3L2 and T 5L3 or when the motor is disconnected At full voltage It trips when the current stays below the programmed value longer than the programmed time Referring to the nominal motor current When the parameters are set with the factory default values then this protection trips after elapsing 1 second with phase loss either at the input or at the output motor It trips when the current circulating through the SSW 08 is less than 20 of the value adjusted at the Motor Current trimpot When the heatsink temperature is superior to the limit Also trips when the temperature sensor is not connected Probable Causes Percentage values programmed as maximum acceptable limit In hydraulic pump applications it may be running with no load Phase loss in the three phase network Short circuit or fault at the thyristor or By pass Motor not connected Motor connection is incorrect Loose contact in the connections Starting problems with the input contactor Input fu
29. from 255 Ato 412 A m 50 to 60 Hz 10 96 or 45 to 66 Hz Consumption m 15 VA models from 17 A to 200 A m 45 VA Continuos 530 VA additional during by pass Closing models from 255 A to 412 A Control Method m Voltage ramp Current limitation Inputs Digitals 3 Isolated digital inputs Minimum upper level 93 Vac Maximum lower level 10 Vac Maximum voltage 264 Vac Input current 1 1 mA 220 V Programmable functions Outputs m 2 relays with NO contacts 240 Vac 1 A and programmable functions Overcurrent Phase loss Inverted phase sequence Heatsink overtemperature Motor overload External fault Open By pass contact Closed By pass contact Overcurrent before By pass Stall Frequency out of range Electronic supply undervoltage l 50 SSW 08
30. ft Starter to the power line the motor connections the voltage levels of the power line the fuses circuit breakers and disconnecting switches 51 4 Programming the control type in pump control Is recommended program the control type in pump control using keypad or serial communication see the Programming Manual for more details In special cases when is not available keypad or serial communication is also possible to program the control type in pump control following these instructions 1 To enter in programming mode keep the reset key at the SSW 08 front cover pressed during 5 seconds keeping it also pressed throughout the programming 2 When in the programming mode LEDs will turn on indicating the actual parameterization See item 4 10 and 4 12 3 To modify the control type change the Stall DIP Switch and put it back in the previous position The Stall LED will indicate the new programmed control type LED Stall off P219 0 Control type defined through Voltage Ramp Current Limit DIP Switch LED Stall on P219 2 Control type in Pump Control and parameterization through Trimpots and DIP Switches 5 2 PROTECTIONS AND PROGRAMMING 5 2 1 Suggestion on How to Program the Thermal Class For each application exists a range of thermal classes which might be set The overload protection should not trip during normal starting Therefore it is necessary to know the starting time and current to determine the minimum thermal c
31. lass The maximum thermal class depends on the motor limit 38 SSW 08 Weg Programming Information and Suggestions Determine the minimum thermal class 1 Initially start at the standard thermal class sometimes but without the motor overheating 2 Determine the correct starting time and find an average of the current using a multimeter with a current probe to measure it A current average can be found for any type of starting control For example Starting an 80 A motor using a voltage ramp The current starts at 100 A and goes to 300 A returning afterwards to the nominal value in 20 seconds 100 A 300 A 2 200A 200 A 80 A 2 5 x In of the motor Therefore 2 5 x In 20 seconds A cise AA AA AA ee EEG gt 100 Un esti BODA Motor Initial Voltage P101 Current P102 gt t s Enable Accel Time 20 s Figure 5 9 Typical current curve during a voltage ramp start 3 Use this time to find the minimum class necessary to start the motor in cold condition In the item 4 8 Overload Protection it is possible to check the thermal class curves of the motor in cold condition t s 15 10 5 0 2 5 x In of the motor xin Figure 5 10 Checking the minimum class of curves in cold condition Therefore the minimum class necessary to start the cold motor is Class 10 Class 5 will trip during starting NOTE If the motor must start in the hot condition clas
32. minals Connectors TighteningW Fans Ventilation Systems Substitute fan Fan always off Abnormal vibration Power Module Power Connections 1 Every six months 2 Twice a month SSW 08 47 VET Options and Accessories 7 OPTIONS AND ACCESSORIES This chapter describes the optional devices that can be used with Soft Starter SSW 08 Table 7 1 Optional description 10190951 NOTE Please check the availability of the accessorie 7A 1P20 KIT The IP20 KIT is used to protect against touching 7 1 IP2OKIT the energized parts 382 50 mm 15 059 in 484 mm ue 19 05 in 48 SSW 08 Figure 7 2 IP20 kit for size 4 Weg Technical Characteristics 8 TECHNICAL CHARACTERISTICS This chapter describes the electric and mechanical technical characteristics of the Soft Starter SSW 08 line 8 1 NOMINAL POWERS AND CURRENTS ACCORDING TO UL508 Table 8 1 Powers and currents according to UL508 room temperature of 55 C 131 F SSW 08 Motor voltage Motor voltage Motor voltage Motor voltage Model A T W V ew V A TRI V as q V Pa ee E E AC tn Sn Ren Ee AA SA 1304 50 37 75 55 100 75 125 90 AA AAA A SAO mo SA 125 90 175 130 250 185 300 225 8 2 NOMINAL POWERS AND CURRENTS FOR STANDARD IP55 IV POLE WEG MOTOR Table 8 2 Powers and currents for WEG motors room temperature of 55 C 131 F SSW 08 Motor voltage
33. mmended for the complete SCR protection The transformer T1 is optional and must be used when there is a difference between the line voltage and the electronic power voltage To protect the motor from damage by possible short circuits in the power circuit of the Soft Starter SSW 08 use an isolating contactor K1 or circuit breaker Q1 Start push button Stop push button Start Stop switch remember that when the command via two wire digital input is used the switch is normally open with retention every time the power supply is restored after any fault the motor will start immediately if the switch remains closed 7 In case of maintenance of the Soft Starter SSW 08 or the motor it is necessary to remove the input fuses or disconnect the power supply to ensure the complete equipment disconnection from the power supply The emergency stop can be used by disconnecting the electronics power supply 9 Undervoltage release for the Q1 power isolation circuit breaker OOO O 20 SSW 08 Weg Installation and Connection 3 3 1 Recommended Set up with Command via Two wire Digital Inputs and Isolation Contactor Refer to notes in item 3 3 Figure 3 10 Recommended set up with commands via two wire digital inputs and isolation contactor 3 3 2 Recommended Set up with Command via Three wire Digital Inputs and Circuit Breaker DO KO Ros S p T gt Refer to notes in item 3 3 Figure 3
34. motor used is in accordance to the application Nan haaa nekt Ta maor tad Sn O Ne aeptoaton LEDs off Check the power supply Nominal values must be inside the following limits a of the Umin 93 5 Vac Vibration during Soft Starter Settings Reduce the acceleration ramp time Se E NOTE O When contacting WEG for service or technical assistance please have the following data on hand Model of the Soft Starter Serial number production date and hardware revision present in the identification label of the product refer to item 2 3 Installed software version refer to item 2 3 Application and programming data For explanations training or service please contact WEG Automac o Service Department 46 SSW 08 Weg Solution and Troubleshootin 6 3 PREVENTIVE MAINTENANCE WARNING A Always disconnect the general power supply before touching any electric component associated to the Soft Starter SSW 08 Do not apply any high voltage tests on the Soft Starter SSW 08 If necessary consult the manufacturer Do not use megometers to test thyristors Periodic inspections of Soft Starters SSW 08 and installations are necessary to avoid operating problems due to unfavorable environmental conditions like high temperature moisture dust vibrations or due to the aging of the components Table 6 3 Periodic inspections after putting into use Component Abnormality Corrective Action Ter
35. nter in programming mode keep the reset key at the SSW 08 front cover pressed during 5 seconds keeping it also pressed throughout the programming 2 When in the programming mode two LEDs turn on Overcurrent and Phase Loss indicating that DI2 is programmed for Error Reset If three LEDs turn on Overcurrent Phase Loss and Phase Sequence it indicates that DI2 is programmed for three wire command If the Overload LED turns on then the RL function is No Fault otherwise the function is Operation 3 To modify the RL function change the Overload DIP Switch and put it back in the previous position The Overload LED will indicate the new programmed function Overload LED off Operation function Overload LED on No Fault function SSW 08 33 VET Programming Information and Suggestions 5 PROGRAMMING INFORMATION AND SUGGESTIONS This chapter helps the user to set the types of starting controls according to their applications 5 1 APPLICATIONS AND PROGRAMMING ATTENTION A Suggestions and important notes for each type of starting control ATTENTION To know the correct programming of the parameters have your load data on hand and use the WEG Soft Starter Dimensioning Software available at WEG s home page http www weg net Ifyou are unable to use the software mentioned above you can follow some practical concepts described in this chapter 5 Shown below are some characteristic curve
36. o not apply any high voltage test on the Soft Starter SSW 08 If necessary contact the manufacturer NOTE Soft Starters SSW 08 may interfere with other electronic equipment Follow the measures in Chapter 3 to reduce these effects NOTE Read this manual completely before installing or operating the Soft Starter SSW 08 2 SSW 08 Weg General Information 2 GENERAL INFORMATION 2 1 ABOUT THIS MANUAL This manual presents the Soft Starter installation how to start it up its main technical characteristics and how to identify and correct the most common problems The manuals listed next must be consulted in order to get more information regarding the functions accessories and working conditions Programming Manual with a detailed description of the parameters and its functions RS232 RS485 Communication Manual These manuals are supplied in electronic format on the CD ROM that accompanies the Soft Starter or can be obtained at WEG s web site http www weg net 2 2 ABOUT THE SOFT STARTER SSW 08 The Soft Starter SSW 08 is a high performance product with 2 phases controled that permits the start control of the three phase AC induction motors Thus it prevents mechanical shocks on the load and current peaks in the supply line The SSW 08 electronic Soft Starter has been designed to drive three phase induction motors applied to light duty loads such as centrifugal pumps small fans and screw compres
37. ollowing conditions Copper wires for 70 C 158 F with PVC insulation for ambient temperature of 40 C 104 F installed in perforated and not agglomerated conduits Naked or silver coated copper busbars with round edges with 1 mm radius with ambient temperature of 40 C 104 F and bus temperature of 80 C 176 F NOTE For correct cable dimensioning consider the installation condition and the maximum permitted line voltage drop SSW 08 13 Installation and Connection El Table 3 5 Minimum cable gauge specification SSW 08 Power Cable Grounding Cable _ mm AWG mm AWG 255A 120 250kmil 25 14 3 2 4 Power Supply Connection to the Soft Starter SSW 08 IN DANGER The AC input must be compatible with the voltage range of the Soft Starter SSW 08 IN DANGER Provide a power supply disconnecting switch for the Soft Starter SSW 08 This disconnecting switch must disconnect the AC input voltage to the Soft Starter SSW 08 whenever necessary for example during maintenance services If a disconnected switch or a contactor is inserted in the motor supply line never operate these devices with the motor running or when the Soft Starter SSW 08 is enabled ATTENTION Over voltage control in the line that supplies the Soft Starter must be made using over voltage protections of 680 Vac phase to phase connection and energy absorption capacity of 40 joules
38. ommended FUSES cccccccecccescesnscscssnnsnnnsnsnssann seen sessesseescnensesececcaeccensaannnssnessnenascrasess 15 3 2 4 3 Recommended Contactors 16 3 2 5 Soft Starter SSW 08 Connection to the Motor 16 3 2 5 1 Standard Three Wire Connection 17 3 2 6 Grounding Connections LULU Q 17 3 2 7 Control and Signal Connections l l U u u u U uuu u uu uu uu Qu 19 3 3 RECOMMENDED SET UPS U U LLL uuu 20 3 3 1 Recommended Set up with Command via Two wire Digital Inputs and EA 21 3 3 2 Recommended Set up with Command via Three wire Digital Inputs and 21 Girc it BreaKer uu III IIIa s isisa sa sasayakussasawaastasskassasskssssasasanasaaasatassasasasansssassshasskawasssasaswas 21 3 3 3 Recommended Set up with Command via Two wire Digital Inputs and Direction of Rota pio ni RNGA 22 3 3 4 Recommended Set up with Command via Two wires Digital Inputs and DC Braking 23 E 6GIG TIGRE 24 4 SETTING THE SSW 08 4 1 CONTROL TYPE SETTING AA AANGAT NANANA 25 4 2 KICK START aa 26 4 3 INITIAL VOLTAGE SETTING 0 GNG 26 4 4 CURRENT LIMIT SETTING ARIIN 27 4 5 ACCELERATION RAMP TIME SETTING J
39. r SSW 08 on the surface of a mounting plate thn lt Figure 3 3 Installation procedures of the Soft Starter SSW 08 on a surface 3 2 ELECTRICAL INSTALLATION DANGER A The Soft Starter SSW 08 cannot be used as an emergency stop device Always use an isolation contactor or a circuit breaker to disconnect the power supply of the SSW 08 DANGER A Be sure that the AC input power is disconnected before making any terminal connection ATTENTION The information below may be used as a guide to achieve a proper installation Follow also the applicable local standards for electrical installations ATTENTION If a power isolating contactor or circuit breaker with minimum voltage coil is not used at the first power on then power up the electronics first adjust the trimpots that are necessary to put the SSW 08 into operation and only after this energize the power section SSW 08 11 El Installation and Connection Circuit breaker R 1L1 S 3L2 T SLS H 3933 Ks III U 2T1 V 4T2 W 6T3 PE PE BS PES Figure 3 4 Standard power grounding connections 3 2 1 Power Terminals The power connection terminals can be of different
40. s 10 will trip during the second start In the case a higher thermal class must be set SSW 08 39 Programming Information and Suggestions Weg Determine the maximum thermal class To correctly program the Thermal Class that will protect your motor it is essential to have in hand the motor locked rotor current and locked rotor time This information is available in the motor manufacturer s catalogue Put these values into figure 4 8 in case of the cold stall time or into figure 4 9 in case of hot stall time For example Stall Current 6 6 x In Hot Stall Time 6s 6s 30 25 20 0 xin 6 6 x In of the motor Figure 5 11 Checking the maximum class of curves in hot condition Class 25 is the highest class that protects the motor NOTE O Remember that this protection has as a standard the Three Phase IP55 Standard WEG Motor therefore if your motor is different then do not program the thermal class to its maximum instead program it near its minimum thermal class to start Example of how setting the thermal class Motor data Power 50 hp Voltage 380 V Nominal Current In 71 A Service Factor S F 1 00 Ip n 6 6 Stall time 12 s in hot condition Speed 1770 rpm 40 SSW 08 Weg Programming Information and Suggestions Motor load starting data Starting by Voltage Ramp starting current average 3 x the nominal current of the motor during 17 s 3 x In O 17 s 1 In the graph
41. s protection must be set according to the specific motor When several motors are connected to the same Soft Starter SSW 08 use individual overload relays for each motor 16 SSW 08 ueg Installation and Connection 3 2 5 1 Standard Three Wire Connection Line current of the Soft Starter SSW 08 is equal to the motor current UTZHODT m UZAVOD m Figure 3 7 Soft Starter SSW 08 with standard connection 3 2 6 Grounding Connections gt DANGER The Soft Starter must be grounded for safety purposes PB The ground connection must comply with the local regulations For grounding use cables with cross sections as indicated in table 3 5 Make the ground connection to a grounding bar or to the general grounding point resistance 210 ohms DANGER The AC input for the Soft Starter SSW 08 must have a ground connection gt gt DANGER Do not use the neutral conductor for grounding purpose Use dedicated ground conductor gt ATTENTION Do not share the ground wiring with other equipment that operate with high current for examples high voltage motors welding machines etc When several Soft Starters SSW 08 are used observe the connections in the figure 3 8 SSW 08 17 El Installation and Connection
42. s with current and starting torque behavior according to some kinds of control Vin 4 T Tn Current Torque 0 25 50 75 100 rpm ln 4 T Tn Current 0 25 50 75 100 rpm Figure 5 1 Characteristic curves of torque and current in a direct on line start and by voltage ramp 34 SSW 08 Weg Programming Information and Suggestions Ine T Tn Current Torque 0 25 50 75 100 96 rpm Figure 5 2 Characteristic curves of torque and current in a current limitation start The following items show characteristic curves with the starting torque behavior according to some types of loads and their suggested controls 5 1 1 Voltage Ramp Starting 1 Set the value of the initial voltage to a low value 2 When a load is applied to the motor set the initial voltage to a value that makes the motor rotate smoothly from the instant it is started 3 Set the acceleration time with the necessary start time initially with short times 10 to 15 seconds and afterwards try to find the best starting condition for the used load U V Start 100 Un 0 Cr Enable Voltage Ramp 0 Disable EA Figure 5 3 Voltage ramp starting NOTE With long starting times or when the motor is without a load vibration can occur during the start of the motor therefore lower the starting time f faults occur during the start check all the connections from the Soft Starter to the supply ne
43. ses are blown Undersized input transformer Incorrect programming of the Motor Current trimpot Motor current consumption lower than required for phase loss protection to work Shaft load too high Elevated number of successive starts Internal temperature sensor not connected Power on Reset key Auto reset Dix Power on Reset key Auto reset Dix SSW 08 43 Solution and Troubleshootin El Table 6 1 Faults and possible causes cont Protection Description and Fault Display Activation Description Electronic motor When the times given by the overload programmed thermal class curves exceed the limit E05 LED Overload Flashing Start timeout during current limit starting When the starting time is longer than the time set in the acceleration ramp trimpot Active only with current limit starting E62 LED Fault Flashes twice LED Ready On Stall Activates before full voltage if the current is greater than twice the E63 nominal motor current LED Stall Flashing Overcurrent ltis only monitored when the SSW 08 is at full voltage When the parameters are set with the factory default values this protection trips when the motor current exceeds 3 times the value adjusted in the trimpot Motor Current for a time longer than 1 second When the sequence of synchronism signals interruptions does not follow the RST sequence E66 LED Overcurrent Flashing Incorrect
44. sors If the Soft Starter shall be applied on heavy duty loads please contact WEG RLI SL2 T BLS Three phase lt ES ES ES Power Supply mer SSA BOT STARTER DIP Switch for Soft Starter adjustmente rima and protection enabling Trimpots to adjust 1491319 00000000 perar B di Ea Status Indication LEDs Crear of the SSW 08 EF 00 ss 282 age gga ER DIP switch to adjust the Thermal Class __ Lid for optional Plug in Modules Electronic Power Supply At and AZ Start Stop Relay Output Command of the 909900909099 13 14 23 and 24 Motor D1 and a E Reset DI2 and DI3 a Motor Output UTA VATA WT Figure 2 1 Frontal view of the SSW 08 SSW 08 3 General Information Three Phase Control Programmable Programmable Digital Power Supply Power Supply Digital Inputs Outputs R S T A1 A2 DI DI2 DIS 13 1423 24 O Digital Signal Processor DSP Three Phase Motor Figure 2 2 1 Soft Starter SSW 08 size 1 2 and 3 block diagram Three Phase Control Programmable Programmable Digital Power Supply Power Supply Digital Inputs Outputs R T At A2 DH DI2 DI3 13 14 23 24 O O O de o O de Digital Signal Processor DSP U V W m Three Phase Motor RE Figure 2 2 2 Soft Starter SSW 08 Size 4 block diagram 4 SSW 08 El Weg General Information 2 3 SOFT STARTER SSW 08 IDENTIFICATION PLATE W
45. tact in the relay cables By pass contact voltage difference between the input By pass contacts are welded or shorted SCR s and output at the moment the motor Short circuit Thyristor is switched off Input and output external short circuit E77 Disconnected motor Fault LED flashes 6 times Ready LED Off NOTE In the case of E04 over temperature it is necessary to wait a little before resetting in order to cool down In the case of E05 motor overload it is necessary to wait a little before resetting in order to cool down SSW 08 45 El Solution and Troubleshootin 6 2 TROUBLESHOOTING Table 6 2 Solving the most frequent problems Points to check Motor does not run Wrong wiring Check all the power and command connections For example The Dix digital inputs programmed as enabling or external fault must be connected to AC supply Wrong programming Check if the parameters are with the correct values for the A S Fault Check if the Soft Starter is not blocked to a detected fault e A Motor does not Motor stall Increase the current limit level with the control to limit the Ra C current refer to table 6 1 Motor rotation Loose connections Switch the Soft Starter and the power supply off and oscillates fluctuates tighten all the connections Check all the internal connections of the Soft Starter to make sure they are well connected Motor rotation Motor nameplate data Check if the
46. tal inputs and relay outputs are made through the terminals refer to figure 3 9 Table 3 9 Description of the control connector pins em maggie Voltage 110 to 240 Vac 15 to 10 96 models from 17 A to 200 A 110 to 130 Vac or 208 to 240 Vac 15 to 10 models from 255 A to 412 A a Supply 0 5 4 5 3 isolated digital inputs Voltage 110 to 240 Vac 15 to 10 Current 2 mA Max Contact capacity Voltage 250 Vac Current 1 A 00000000 A1 A2 DIM DI2 DI3 13 14 23 24 IN o S Hi SO Y U 2T1 VI4T2 W 6T3 Figure 3 9 Control terminals of the Soft Starter SSW 08 NOTE It is recommended to use shielded cables for the Dix inputs when using long cables above 30m in noisy enviroments The metallic shield and A2 must be grounded SSW 08 19 Installation and Connection Weg 3 3 RECOMMENDED SET UPS Some recommended set ups are shown here and they can be completely or partly used The main warning notes for all the recommended set ups are shown below and are described in the schemes by their respective numbers NOTE For the protection of the whole electrical installation it is necessary to use fuses or circuit breakers The use of ultra rapid fuses is not required for the operation of the Soft Starter SSW 08 but they are reco
47. tart being set according to the application necessities Generally applied to loads with a higher initial torque or a constant torque This kind of control is used to adapt the start to the capacity limits of the supply network NOTES 1 The Current Ramp control type is only programmed using keypad or serial communication See the Programming Manual for more details 2 To program the control type in Pump control see the Programming Manual or item 51 4 SSW 08 25 El Setting the SSW 08 4 2 KICK START Kick Start Enabling DIP Switch O FAULT RUN Figure 4 2 Kick Start enabling Soft Starter SSW 08 offers a Kick Start function for loads that present a large initial resistance to movement This function is enabled through the Kick Start DIP Switch The duration of the voltage pulse is set through the trimpot Kick Start Time The voltage pulse applied is of 80 Un during the programmed trimpot Kick Start Time NOTE Use this function only for specific applications and where necessary 4 3 INITIAL VOLTAGE SETTING Set the initial voltage to a value that the motor starts to run as soon as the start command is given to the SSW 08 Initial Voltage Setting Trimpot v KICK INITIAL VOLTAGE START TIME Va LIMIT OIO Ca 1450 NE 1150 ACCEL DECEL APON TIME The dot N indicates the 408 405 Ed factory default 1s 50 setting Figure 4 3 Initial voltage setting
48. tion time according to the application and ensuring that the pump stops smoothly within the expected limits The set of excessively long times may result in vibrations or harmful motor overheating 1 N 1 1 ei 4 N 1 4 N i N MO 4 N v ds Se Ng BAG ma AQ Nabi 0 Disable Figure 5 7 Manometer showing the pressure drop 9 Generally the current increases at the end of the deceleration ramp and in this case the motor requires more torque to achieve a smooth water flow stop When the motor has already stopped but is still enabled the current will increase too much To prevent this condition set P105 to a value that as soon it stop it is also disabled 10 Set P610 and P611 to current and time levels that prevent the hydraulic pump from running without a load SSW 08 37 El Programming Information and Suggestions U V 100 Un lt Stop e AN r 5 i pros O Enable Pump Control Co Disable Figure 5 8 Start with pump control NOTES 1 If the hydraulic piping is not fitted with a manometer the water hammer can be noted at the pressure relief valves 2 Please consider that sudden line voltage drops results in motor torque drops Thus ensure that the power supply line characteristics are within the characteristics required for motor operation 3 If errors are detected during the motor start check all connections of the So
49. to the previous position The three LEDs will turn on indicating that DI2 is programmed for three wire commands 4 To change the DI2 programming to fault Reset move the Kick Start DIP Switch and return to the previous position Two LEDs will turn on indicating that the DI2 is programmed for fault Reset 5 Programming is concluded when the reset key is released 4 11 OUTPUT RELAY OPERATION The relay of the Operation Function closes its N O contact 13 14 23 every time the SSW 08 receives the enable command This contact is only opened at the end of the deceleration ramp when it is set via trimpot or when the SSW 08 receives the disable command The relay of the Full Voltage Function closes the N O contacts 14 23 24 every time the SSW 08 applies 100 96 of the voltage to the driven motor This contact opens when the SSW 08 receives the disable command Motor Voltage U N 100 Operation Function Relay on 13 14 23 Full Voltage Function 14 23 24 Figure 4 10 Output relay operation 4 12 RELAY OUTPUT RL1 PROGRAMMING In the factory default programming the relay output RL1 has its function programmed for Operation RL 13 14 can be also be programmed for the No Fault function This function allows the installation of a circuit breaker with an undervoltage release at the SSW 08 input Refer to figure 3 3 2 In order to change the relay output RL1 programming follow these instructions 1 To e
50. twork motor connections supply network voltage levels fuses and circuit breakers SSW 08 35 VET Programming Information and Suggestions 5 1 2 Current Limit Starting 1 To start with a current limitation it is necessary to start with a load Initial test without load can be done with a voltage ramp 2 Set the acceleration time with the necessary starting time initially with short times 15 to 20 seconds This time will be used as the stall time in case the motor does not start 3 Set the current limit according to the conditions that your electric installation allows as well as to the values that supply enough torque to start the motor It can initially be programmed with values between 2x and 3x the nominal current of the motor In of the motor Limitation Nominal Maximum Time ts O Enable Current Limitation 0 Disable Figure 5 4 Current limit starting NOTE f the current limit is not reached during the start the motor will start immediately Very low Current Limit values do not provide sufficient torque to start the motor Always keep the motor rotating once it is started For loads that need a higher initial starting torque the Kick Start function can be used f faults occur during the start check all the connections from the Soft Starter to the supply network motor connections supply network voltage levels fuses and circuit breakers 5 1 3 Starting
51. with Pump Control P202 2 1 To start with pump control a load is necessary No load tests can be done with voltage ramp 2 The starting parameters setting depend mainly on the types of hydraulic installations Thus we recommend optimizing factory settings if possible 3 Check if the motor rotation direction is an indicated on the pump frame If not connect the phase sequence as indicated at P620 Figure 5 5 Direction of rotation of a hydraulic centrifugal pump 36 SSW 08 Weg Programming Information and Suggestions 4 Set the initial voltage P101 so the motor starts smoothly as soon as it is enabled 5 Set the acceleration time according to the application and that the motor is able to start the load smoothly but the required acceleration is not exceeded If acceleration times are set too long this may result in vibration or harmful motor overheating 6 To check the correct starting process always use a manometer in the hydraulic installation Pressure increase should not result in sudden oscillations Thus the pressure increase should be as linear as possible gt 1 100 Un lt p102 Si Enable Pump Control Figure 5 6 Manometer showing pressure increase 7 Program the deceleration initial voltage P103 only when no pressure drop is detected at the deceleration begin With this deceleration initial voltage you can improve the linear pressure drop during the deceleration 8 Set the decelera
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