Siemens SIKOSTART 3RW34 Instruction Manual Download Page 20 | Manualshive

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Siemens Energy & Automation, Inc.

20

Figure 12

Power wiring for single speed, non-reversing motors, wired "In Line", in a vented enclosure (circuit breaker or fusible disconnect)

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Summary of Contents for SIKOSTART 3RW34

Page 1: ...Siemens Energy Automation Inc S SI IK KO OS ST TA AR RT TT TM M 3 3R RW W3 34 4 I In ns st tr ru uc ct ti io on n G Gu ui id de e SFIS 4511B 0600 June 2000 Supersedes April 1999 ...

Page 2: ...he equipment and the haz ards involved In addition this person has the following qualifications a is trained and authorized to energize de energize clear ground and tag cir cuits and equipment in accordance with established safety practices b is trained in the proper care and use of protective equipment such as rubber gloves hard hat safety glasses or face shields flash clothing etc in accor dance...

Page 3: ...nd Troubleshooting 35 9 2 Troubleshooting Tables 35 9 3 Inside Delta Wiring Problems 38 9 4 Shorted SCR Checks 39 9 5 SCR Thyristor Testing 39 10 Spare and Optional Parts 10 1 Spare Parts 43 10 2 Optional Parts 45 Appendix A 46 Appendix B 47 IMPORTANT These instructions do not purport to cover all details or variations in equipment nor to provide for every possible contingency to be met in connect...

Page 4: ...ta in a vented enclosure with fusible disconnect and isolation contactor and short trip circuit breaker 24 17 Control wiring for single speed non reversing motor wired Inside Delta in a vented enclosure with fusible disconnect and isolation contactor and short trip circuit breaker 25 18 Power wiring for a single speed non reversing motor wired Inside Delta with bypass and isolation contactors 26 1...

Page 5: ...ers planers saws packag ing machines and punch presses Using the SIKOSTART 3RW34 controller provides benefits to the drive system in the following ways 1 the life of mechanical drive transmission elements is extended e g gearbox jerking is substantially reduced resulting in less wear and tear 2 reduced starting current relieves the supply network of cur rent peaks and 3 smoother acceleration of lo...

Page 6: ...U the initial motor start voltage and T2 decel ramp time for a soft stop pump stop A dip switch SW1 figure 20 is used to set the controller soft ware to the proper application The functions set are 1 delay at stop when bypass contactor is used 2 delay at start when isolation contactor is used 3 motor type wye star or delta 4 Fault output opens or closes on fault 2 3 Three phase Systems Since the c...

Page 7: ... sources are connected to supply voltages U1 2 U2 3 and U3 1 The SIKOSTART controller is connected inside of the delta in series with the motor winding As can be seen the source or line current is split between two motor windings The winding current and SIKOSTART current is therefore less than the source or line current Note that the magnitude of a line current is greater than the magnitude of a w...

Page 8: ... and sized with In Line wiring as shown in figure 5a Figure 5b shows the controller connected with the thyristors inside the delta referred to as Inside Delta wiring For Inside Delta wiring the controller power rating may be increased line current 1 73 phase current figure 4 relative to the In Line power rating 2 4 AC Motor Starting and Stopping Figure 6 shows three torque speed curves a b c for a...

Page 9: ...de energized 2 4 2 Soft Start with Soft Stop Figure 8 like figure 7 shows the voltage and speed curves for a soft start but with controlled deceleration The potentiometers have been set as follows U The initial voltage is set at approximately 30 T1 The start time setting is greater than 0 T2 The stop time setting is greater than 0 which allows the motor to soft stop The motor starting ramp is simi...

Page 10: ...5 0DC 4 131 40 50 100 200 230 460 248 75 200 230 3RW3466 0DC 4 195 60 75 150 200 230 460 361 100 200 230 3RW3467 0DC 4 248 75 100 200 200 230 460 414 125 200 230 3RW3472 0DC 4 361 125 150 300 200 230 460 602 200 200 230 3RW3483 0DC 4 480 150 200 400 200 230 460 720 250 200 230 3RW3484 0DC 4 720 250 300 600 200 230 460 1200 400 200 230 3RW3486 0DC 4 960 350 400 800 200 230 460 1600 500 200 230 3RW3...

Page 11: ...85 90 160 230 400 3RW3466 0DC34 195 55 110 230 400 352 110 200 230 400 3RW3467 0DC34 235 75 132 230 400 450 132 250 230 400 3RW3472 0DC34 352 110 200 230 400 608 200 355 230 400 3RW3483 0DC34 500 160 250 230 400 865 250 500 230 400 3RW3484 0DC34 700 220 400 230 400 1216 400 710 230 400 3RW3486 0DC34 1050 375 630 230 400 1720 560 1000 230 400 3RW3452 0DC35 36 18 5 22 400 500 61 30 37 400 500 3RW345...

Page 12: ...t least 3 inches below the bottom edge of the controller Locate the outlet air vent area at least 6 inches above the controller top edge Air filters impede air circulation and require a fan at inlet and or outlet Some NEMA 12 enclosures use bypass contactors or heat exchange devices to maintain the integrity of the NEMA 12 rat ing Establish a maintenance schedule for enclosures with heat exchanger...

Page 13: ...ncy stop circuit that will either disconnect AC input power to the SIKOSTART controller or disconnect the motor from the controller Multiple Motors When the controller is used for more than one motor be sure the combined full load current sum of indi vidual motor FLA s does not exceed the controller s rated out put current Each motor requires separate overload relay pro tection Bypassing the Contr...

Page 14: ...axi mum of two 14 AWG stranded wires Be sure ring tongue ter minals are sized correctly for the wire Labeling Each wire should be appropriately labeled using tape shrink tubing or other dependable method Routing All control wiring must be kept separate from power and motor wiring and run in its own separate conduit Keep con trol wire bundles physically separated from power wiring by at least 6 inc...

Page 15: ...Siemens Energy Automation Inc 15 Figure 10 SIKOSTART Power and Motor Connections ...

Page 16: ...Siemens Energy Automation Inc 16 Figure 11 SIKOSTART Control Connections ...

Page 17: ...ent controller operation repair will be required before the controller can be put into operation b Connecting the controller to a line voltage lower than its rating will 1 cause erratic controller operation resulting in damage to the motor or 2 prevent controller opera tion due to the low control voltage lockout protective fea ture 2 Connect the ground terminal labeled with ground symbol to earth ...

Page 18: ...o provide soft start The controller output must be connected to the line input of the multispeed starter Individual motor overload protection should be supplied for each motor speed separately During speed transitions control input A1 A2 must be off for a minimum of 200 milliseconds 7 When using the controller with part winding motors these motors must be connected in their full voltage run windin...

Page 19: ...en until the controller has soft started the motor Once the motor is operating at line voltage the Up to Voltage contact closes and the bypass con tactor is energized causing motor current to flow through the bypass contactor rather than the controller A bypass contactor is useful when the controller is mounted in a NEMA 4 12 or other airtight enclosure When the motor cur rent is routed through th...

Page 20: ...Siemens Energy Automation Inc 20 Figure 12 Power wiring for single speed non reversing motors wired In Line in a vented enclosure circuit breaker or fusible disconnect ...

Page 21: ...Siemens Energy Automation Inc 21 Figure 13 Control wiring for single speed non reversing motors wired In Line in a vented enclosure circuit breaker or fusible disconnect ...

Page 22: ...Siemens Energy Automation Inc 22 Figure 14 Power wiring for a single speed non reversing motor wired In Line with bypass contactor ...

Page 23: ...Siemens Energy Automation Inc 23 Figure 15 Control wiring for a single speed non reversing motor wired In Line with bypass contactor ...

Page 24: ...ns Energy Automation Inc 24 Figure 16 Power wiring for single speed non reversing motor wired Inside Delta in a vented enclosure with fusible disconnect and isolation contactor and shunt trip circuit breaker ...

Page 25: ...s Energy Automation Inc 25 Figure 17 Control wiring for single speed non reversing motor wired Inside Delta in a vented enclosure with fusible disconnect and isolation contactor and shunt trip circuit breaker ...

Page 26: ...Siemens Energy Automation Inc 26 Figure 18 Power wiring for a single speed non reversing motor wired Inside Delta with bypass and isolation contactors ...

Page 27: ...Siemens Energy Automation Inc 27 Figure 19 Control wiring for a single speed non reversing motor wired Inside Delta with bypass and isolation contactors ...

Page 28: ...grams in section 5 the position of each switch section is indicated by an arrow pointing to either the right or left 1 SW1 1 This switch provides a turn off delay signal setting left position The off delay allows a bypass contactor to de energize 1 5 seconds before the controller RUN coil de ener gizes This delay eliminates damage to the SCRs caused by voltage transients produced when the bypass c...

Page 29: ...ower and Motor Connections Check that the controller has been properly connected to the power source and motor per figure 10 2 Control Connections Check that control power the start stop control and applicable devices have been proper ly connected to the control terminal board figure 11 3 AC Line PowerVerification Verify that each phase of the AC line power at the disconnect device is within the r...

Page 30: ...by actuating pilot device s Check for proper operation and desired starting performance Verify proper motor rotation if required reverse rotation by interchanging motor leads Adjust potentiometers per paragraph 6 6 6 6 Motor Starting Adjustments Observe the motor during the first trial starts With the setup controls adjusted as described in paragraph 6 3 and controller LED 1 on start the motor Ini...

Page 31: ...iod Stops Plugging or Jogging Applications Controller rating to be 133 of motor rating Severe 5 times in any 60 second period Controller rating to be 200 of motor rating Very Severe 10 times in any 60 second period Controller rating to be 300 of motor rating Controller Current Ratings During Start and Run Current Cold Start Time 50v vC 115 Continuous 200 480 sec 300 120 sec 450 30 sec 500 20 sec 6...

Page 32: ...h 6 1 re SW1 4 settings Recommended Fuse Style Two levels of short circuit protection can be provided by the user 1 Type 1 protection is available where the short circuit protective device protects the wiring and the integrity enclosure The controller will probably damage and require replacement or repair befoe being re energized Cirucit breakers and motor circuit protectors provide this type of p...

Page 33: ...7 248 595 14 500 1 051 000 400A RK1 3RW3472 361 866 6 000 460 000 600A RK1 3RW3483 480 1152 14 920 1 540 000 800A RK1 3RW3484 720 1728 20 000 2 650 000 1200A RK1 3RW3486 960 2304 36 000 7 350 000 1600A RK1 Fuse rating should not exceed 175 of full load motor rating for class RK1 and L fuses forType 2 protection Current Required Milliamperes Catalog 24V DC Control Voltage 120V AC Control Voltage 23...

Page 34: ...nt Number Amps W H D Width Offset Height Offset Hole MW Q MH P BH 3RW345 35 105 8 50 14 00 7 36 5 00 2 42 12 88 0 62 0 25 4 3 71 3RW346 131 248 11 49 15 00 7 46 9 75 0 87 13 07 1 08 0 25 4 3RW3472 361 13 56 16 4 8 83 11 25 1 16 13 21 1 77 0 25 4 3RW3484 480 720 17 42 20 35 9 10 5 23 3 0 71 17 71 1 24 0 25 8 3RW3486 960 17 62 28 32 8 68 3 99 0 91 25 71 1 13 0 25 8 5 44 5 44 ...

Page 35: ... Condition of NEMA standard ICS 2 1993 Industrial Control and Systems Controllers Contactors and Overload Relays Rated Not More Than 2000 Volts AC or 750 Volts DC This checklist does not represent an exhaustive survey of main tenance steps necessary to ensure safe operation of the equip ment Particular applications may require further procedures Should further information be desired or should part...

Page 36: ...uld be zero A reading of line voltage indicates that the motor is not connected properly Discontinuity in the Check that control power is present at terminals A1 and control input circuit A2 If power is not present check for insecure wiring to the Run coil connections at terminals A1 and A2 at applicable control terminals 13 14 etc and at the control devices e g start stop device isolation contact...

Page 37: ...roblem See problem 4 in table 9 Unsuitable delta motor A certain delta motor design wired Inside Delta will not start softly with a high friction load e g conveyor only with a low friction load e g water pump The soft start produces balanced three phase power to the motor but it becomes stuck at a low rpm until the end of the start ramp at high current It then jumps quickly to full speed due to th...

Page 38: ... may be responsible for the problem Table 9 Inside Delta Wiring Problems Problem Response Example 1 Reversed Winding The motor runs but makes non normal sounds and the running cur rent is very high 2 Dead Ended Winding The controller trips out on a single phase fault The line with the Dead End Winding will have no current flow The other two lines will have very large currents flowing Note Repeated...

Page 39: ...inals for the functional tests The power switching device is furnished as an insulated dual SCR module The two SCR s in each module are connected in inverse parallel back to back One module or power pole in each line gives bidirectional control of the AC voltage Typical connections are shown in figure 24 Each SCR has two inter nally connected cathode terminations a large power cathode terminal and...

Page 40: ...minal TG 4 Check gate resistance both to power cathode terminal T and to the auxiliary cathode terminal TK Typical readings are 10 to 50 ohms Open or short readings indicate a dam aged or defective SCR 5 Repeat the measurements from LG to L and from LG to LK All SCR s in a controller should have similar values Test 2 Verify Module Ground Insulation 1 Disconnect line L and motor load T power connec...

Page 41: ...is test is for gating only since the megger cannot provide enough anode current to latch or hold the SCR on The SCR turns off when gate current is removed Test 2 SCR Latching and Holding If latching or holding current SCR characteristics must be vali dated perform the following low voltage test using resistors battery see note and multimeter see figure 26 Note For the largest sizes of SCR s parall...

Page 42: ...Siemens Energy Automation Inc 42 Figure 27 for 3RW345 Figure 28 for 3RW346 Figure 29 Typical configurations ...

Page 43: ...d power modules plus the quantity required for each controller 10 1 1 Controller Amps Uc and Ue Three ratings identify each controller current Amps In Line or Inside Delta control supply voltage Uc 24V DC 120V AC 230V AC and main supply voltage Ue 200 400V AC 230 575V AC Each spare part relates to one or more of the ratings e g each cooling fan corresponds to the Amps and Uc ratings regardless of ...

Page 44: ...RW3954 5DC85 57 105 3RW3958 7DC84 3RW3958 7DC85 3RW3955 5DC84 3RW3955 5DC85 69 131 3RW3958 7DC84 3RW3958 7DC85 3RW3956 5DC84 3RW3956 5DC85 80 156 3RW3958 7DC84 3RW3958 7DC85 3RW3957 5DC84 3RW3957 5DC85 105 195 3RW3958 7DC84 3RW3958 7DC85 3RW3958 5DC84 3RW3958 5DC85 131 248 3RW3967 7DC84 3RW3967 7DC85 3RW3965 5DC84 3RW3465 5DC85 195 361 3RW3967 7DC84 3RW3967 7DC85 3RW3966 5DC84 3RW3466 5DC85 248 41...

Page 45: ...n indicates the torque required for the screw that secures the lug to the controller ter minal The Wire Size Range column lists the wire sizes that the lug can accommodate Table 3 in this manual indicates the torque required for the set screw that secures the wire in the lug Complete installation instructions are furnished with each lug kit Note Mount lug under terminal as shown Table 11 Lug Kits ...

Page 46: ...p pe en nd di ix x A A Fuse protection coordination Type 2 for 3RW34 with SITOR fuses 3NE1 0 short circuit and conductor protection Order Number Order Number Nominal Size of the Softstarter Fuse Current of Fuse Fuse MLFB MLFB A 3RW3454 0DC 4 3NE1820 0 80 000 3RW3455 0DC 4 3NE1225 0 200 1 3RW3457 0DC 4 3NE1230 0 315 1 3RW3458 0DC 4 3NE1230 0 315 1 3RW3465 0DC 4 3NE1230 0 315 1 3RW3466 0DC 4 3NE1230...

Page 47: ...50 637 3RW3483 0DC 4 300 350 352 3RW3483 0DC 5 500 600 637 3RW3483 0DC 5 200 500 3RW3484 0DC 4 350 865 3RW3484 0DC 4 400 500 500 3RW3484 0DC 5 700 800 865 3RW3484 0DC 5 300 726 3RW3486 0DC 4 500 1216 3RW3486 0DC 4 600 750 726 3RW3486 0DC 5 1000 1200 1216 3RW3486 0DC 5 Catalog No 230 V 400 V 500 V Ie MLFB Pe in kW Pe in kW Pe in kW in A In Line kW In Delta kW 11 18 5 35 3RW3454 0DC 4 15 30 57 3RW34...

Page 48: ...echnical Support 49 0 9131 74 3833 Email NST Technical Support ERL7 siemens de Siemens Energy Automation Inc 1000 McKee Street Batavia IL 60510 Tel 630 879 6000 Tel 800 323 5450 http www siemens com controlsusa 2000 Siemens Energy Automation Inc Siemens is a registered trademark of Siemens AG ...

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