Siemens Sikostart 3RW34 Instruction Manual
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Siemens Sikostart 3RW34 Instruction Manual

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SFIS-4511B-0600
June, 2000
Supersedes April, 1999
S S I I K K O O S S T T A A R R T T
3 3 R R W W 3 3 4 4 I I n n s s t t r r u u c c t t i i o o n n G G u u i i d d e e
T T M M
Siemens Energy & Automation, Inc.

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Summary of Contents for Siemens Sikostart 3RW34

  • Page 1 3 3 R R W W 3 3 4 4 I I n n s s t t r r u u c c t t i i o o n n G G u u i i d d e e T T M M Siemens Energy & Automation, Inc.
  • Page 2 Caution - Indicates some injury or property gloves, hard hat, safety glasses or face damage may result if proper precautions are shields, flash clothing, etc., in accor- not taken. dance with established safety practices. is trained in rendering first aid. Siemens Energy & Automation, Inc.

  • Page 3: Table Of Contents

    Siemens sales office. The contents of this instruction manual shall not become part of or modify any prior or existing agree- ment, commitment or relationship.
  • Page 4 SIKOSTART 3RW34 Block Diagram ........

  • Page 5: Scope Of Manual

    The SIKOSTART controller employs a DSP (digital signal proces- sor) to control the motor. This advanced type of microprocessor The SIKOSTART 3RW34 product line is the next generation of allows the controller to “contour” the starting and stopping Siemens solid state reduced voltage controllers. This controller com- ramps.

  • Page 6: Three-Phase Systems

    The voltage in phase a, or Ua, leads the voltage in phase b, or Ub, by 120v. Likewise, Ub leads Uc by 120v, and Uc leads Ua by 120v. Figure 1 Figure 2 - Basic Three-phase Waveforms Siemens Energy & Automation, Inc.

  • Page 7: Three-Phase Wye-Connected Arrangement

    Figure 4 - Three-phase Delta-connected Arrangement Ib = I2 Ic = I3 U1, 2 = SqRt(3) * Ua U2, 3 = SqRt(3) * Ub U3, 1 = SqRt(3) * Uc Figure 3 - Three-phase Wye-connected Arrangement Siemens Energy & Automation, Inc.

  • Page 8: Ac Motor Starting

    3RW34 located on the front panel of @Um (0) = 50% Ue the devices. Figure 5 - Wye and Delta Motor Connections Figure 6 - Typical Torque/Speed Curves for Motor at Reduced Voltages Siemens Energy & Automation, Inc.

  • Page 9: Voltage And Time Curves For Soft Start With Coast To Stop

    T2 time period and then coasts to zero. Figure 7 - Voltage and Time Curves for Soft Start Figure 8 - Voltage and Time Curves for Soft Start with Soft Stop with Coast to Stop Siemens Energy & Automation, Inc.

  • Page 10: Controller Selection

    460/575 3RW3467-0DC*5 200/250 460/575 460/575 3RW3472-0DC*5 300/350 460/575 460/575 3RW3483-0DC*5 400/500 460/575 460/575 3RW3484-0DC*5 600/700 460/575 1200 1000 460/575 3RW3486-0DC*5 800/1000 460/575 1600 1300 460/575 ** See Appendix B for Motor Power Ratings at 60vC. Siemens Energy & Automation, Inc.
  • Page 11 250/355 400/500 3RW3472-0DC35 200/220 400/500 355/400 400/500 3RW3483-0DC35 250/355 400/500 500/560 400/500 3RW3484-0DC35 400/500 400/500 1216 710/840 400/500 3RW3486-0DC35 1050 630/700 400/500 1720 1000/1200 400/500 * See Appendix B for Motor Power Ratings at 60vC. Siemens Energy & Automation, Inc.

  • Page 12: Incoming Inspection

    Refer to NEC Article 430 for requirements and data in fire. regarding 1) motor disconnecting means, 2) motor branch circuit short circuit and ground fault protection, and 3) motor overload regulations. Siemens Energy & Automation, Inc.

  • Page 13: General Wiring

    When an isolation contactor is used with the controller, the PFC capacitors must be disconnected from the controller when the isolation contactor is open (see figure 10). Siemens Energy & Automation, Inc.

  • Page 14: Inductive Load Suppression

    Wire Specifications. Each control terminal can accept a maxi- Figure 9 - Inductive Load Suppression mum of two 14-AWG stranded wires. Be sure ring tongue ter- minals are sized correctly for the wire. Siemens Energy & Automation, Inc.
  • Page 15 Figure 10 - SIKOSTART Power and Motor Connections Siemens Energy & Automation, Inc.
  • Page 16 Figure 11 - SIKOSTART Control Connections Siemens Energy & Automation, Inc.

  • Page 17: Power And Motor Connections

    250 to 400 [126.68 - 202.68] .....290 [33] 500 to 600 [253.35 - 300 ......335 [38] Nut on Ground Stud Controller Operational Current <= 240A............75 [8] >= 360A............110 [12] * for 75vC Aluminum or Copper Wire Siemens Energy & Automation, Inc.

  • Page 18: Control Connections

    3. Shut enclosure doors to protect equipment from dust and Connection Terminal Connection Terminal personnel from hazardous voltage. T1 & T7 T2 & T8 T3 & T9 T6 & T12 T4 & T10 T5 & T11 T4-T7* T5-T8* T6-T9* * Jumper Siemens Energy & Automation, Inc.

  • Page 19: Typical Applications

    1) the fault contact opens to de-energize the isolation contactor for the first motor (1MTR) and 2) the fault contact closes to oper- ate the shunt trip on the circuit breaker for the second motor (2MTR). Siemens Energy & Automation, Inc.

  • Page 20: Power Wiring For Single Speed, Non-Reversing Motors, Wired "In Line", In A Vented Enclosure (Circuit Breaker Or Fusible Disconnect)

    Figure 12 Power wiring for single speed, non-reversing motors, wired "In Line", in a vented enclosure (circuit breaker or fusible disconnect) Siemens Energy & Automation, Inc.

  • Page 21: Control Wiring For Single Speed, Non-Reversing Motors, Wired "In Line", In A Vented Enclosure (Circuit Breaker Or Fusible Disconnect)

    Figure 13 Control wiring for single speed, non-reversing motors, wired "In Line", in a vented enclosure (circuit breaker or fusible disconnect) Siemens Energy & Automation, Inc.

  • Page 22: Power Wiring For A Single Speed, Non-Reversing Motor, Wired "In Line" With Bypass Contactor

    Figure 14 Power wiring for a single speed, non-reversing motor, wired "In Line" with bypass contactor Siemens Energy & Automation, Inc.

  • Page 23: Control Wiring For A Single Speed, Non-Reversing Motor, Wired "In Line" With Bypass Contactor

    Figure 15 Control wiring for a single speed, non-reversing motor, wired "In Line" with bypass contactor Siemens Energy & Automation, Inc.

  • Page 24: Power Wiring For Single Speed, Non-Reversing Motor, Wired "Inside Delta" In A Vented

    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. Siemens Energy & Automation, Inc.

  • Page 25: Control Wiring For Single Speed, Non-Reversing Motor, Wired "Inside Delta" In A Vented

    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. Siemens Energy & Automation, Inc.

  • Page 26: Power Wiring For A Single Speed, Non-Reversing Motor, Wired "Inside Delta", With Bypass And Isolation Contactors

    Figure 18 Power wiring for a single speed, non-reversing motor, wired "Inside Delta", with bypass and isolation contactors Siemens Energy & Automation, Inc.

  • Page 27: Control Wiring For A Single Speed, Non-Reversing Motor, Wired "Inside Delta", With Bypass And Isolation Contactors

    Figure 19 Control wiring for a single speed, non-reversing motor, wired "Inside Delta", with bypass and isolation contactors Siemens Energy & Automation, Inc.

  • Page 28: Setup Controls

    1.5 seconds later. The delay maximizes contact life on the isolation contactor.The right position of switch SW1-2 up position, switch to the right). provides no delay. When the start device is actuated, the RUN coil energizes immediately. Siemens Energy & Automation, Inc.

  • Page 29: Led Indicators

    Consequently, the temperature rise of the motor operating at a particular load and percentage voltage unbal- ance is greater than for the motor operating under the same conditions with balanced voltages. For further information, refer to NEMA Standard MG 1-14.35. Siemens Energy & Automation, Inc.

  • Page 30: Motor Starting Adjustments

    Stop Time _________________ Initial Voltage _______________ Start Time ________________ (0 is minimum, F is maximum) (0 is minimum, F is maximum) (0 is minimum, F is maximum) Record the final potentiometer settings in the blank spaces above. Siemens Energy & Automation, Inc.

  • Page 31: Electrical Specifications

    Input Current, ma 10@120VAC 10@24VDC 10@230VAC On Voltage, volts min. 85 VAC 17 VDC 170 VAC On Current, ma min. Off Voltage, volts max. 40VAC 8VDC 80VAC Off Current, ma max. Input Impedance, ohms (typical) Siemens Energy & Automation, Inc.
  • Page 32 (600V or less) Gould A2D( )R (250V or less) A2D( )R (600V or less) Littelfuse LLN-RK (250V or less) LLS-RK (600V or less) * For a complete listing of Siemens SITOR™ fuses, see Appendix A. Siemens Energy & Automation, Inc.
  • Page 33 100 ma 150 ma 100 ma 75 ma 3RW3472 100 ma 600 ma 100 ma 300 ma 100 ma 150 ma 3RW3483 - 86 100 ma 900 ma 100 ma 450 ma 100 ma 225 ma Siemens Energy & Automation, Inc.

  • Page 34: Dimensions

    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... 17 .62 28.32 8.68 3.99/ 0.91 25.71 1.13 0.25 (8) 5.44/ 5.44 Figure 22 - Dimensions Siemens Energy & Automation, Inc.

  • Page 35: Maintenance And Troubleshooting

    Can cause death, serious injury, or lems arise which are not covered sufficiently for the purchaser's property damage. purposes, the matter should be referred to the local Siemens Failure to properly maintain this equipment sales office. can result in death, serious injury, property damage or product failure.
  • Page 36 Initial Voltage U is set Raise setting of Initial Voltage U until motor just starts to rotate at start but comes too low when power is first applied; refer to paragraph 6.6. up to speed Siemens Energy & Automation, Inc.
  • Page 37 If motor accelerates the load, continue checking the following causes. Improper overload relay heaters Check heater table to determine correct heater size. Overload relay current transformers incorrectly wired Verify current transformer wiring per applicable diagram(s). Siemens Energy & Automation, Inc.

  • Page 38: Inside Delta Wiring Problems

    Figure 23 - Proper Inside Delta Wiring Connection currents compared to the con troller’s internal timing for starting control, there is no current limiting during starting. Table 9 Problem 1 Problem 2 Problem 3 Problem 4 Siemens Energy & Automation, Inc.

  • Page 39: Shorted Scr Checks

    Illustrations identifying terminals and connections for thyristors The power switching device is furnished as an insulated dual of various current ratings are included at the end of this section. SCR module. The two SCR’s in each module are connected in Siemens Energy & Automation, Inc.
  • Page 40 4. Proceed to the other SCR in the module. Make the anode and cathode meter connections and measure for both polar- ities. 5. A short circuit or a measurement below one megohm prob- ably indicates a defective SCR. Siemens Energy & Automation, Inc.

  • Page 41: Gate Triggering Test Diagram

    8. Repeat above sequence on the second SCR in the module. This 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. Siemens Energy & Automation, Inc.
  • Page 42 Figure 27 - for 3RW345*-.. Figure 28 - for 3RW346*-.. Figure 29 - Typical configurations Siemens Energy & Automation, Inc.

  • Page 43: Spare And Optional Parts

    1/Controller 131 - 248 248 - 414 3RW3960-8DC28 3RW3960-8DC38 3RW3960-8DC48 2/Controller 2/Controller 2/Controller 3RW3970-8DC28 3RW3960-8DC38 3RW3960-8DC48 3/Controller 3/Controller 3/Controller 480 - 720 720 - 1200 3RW3972-8DC28 3RW3960-8DC38 3RW3960-8DC48 3/Controller 3/Controller 3/Controller 1600 3RW3973-8DC28 3RW3960-8DC38 3RW3960-8DC48 Siemens Energy & Automation, Inc.
  • Page 44 3RW3958-5DC85 3RW3967-7DC84 3RW3967-7DC85 3RW3965-5DC84 3RW3465-5DC85 3RW3967-7DC84 3RW3967-7DC85 3RW3966-5DC84 3RW3466-5DC85 3RW3967-7DC84 3RW3967-7DC85 3RW3967-5DC84 3RW3467-5DC85 3/Controller 3/Controller 3/Controller 3/Controller 3RW3972-7DC84 3RW3972-7DC85 3RW3972-5DC84 3RW3472-5DC85 3RW3984-7DC84 3RW3984-7DC85 3RW3983-5DC84 3RW3483-5DC85 1200 3RW3984-7DC84 3RW3984-7DC85 3RW3984-5DC84 3RW3484-5DC85 1600 3RW3986-7DC84 3RW3986-7DC85 3RW3986-5DC84 3RW3486-5DC85 Siemens Energy & Automation, Inc.

  • Page 45: Optional Parts

    10.2.1 AS-i Module Catalog No. 3RW3400-0DC88 This AS-i Communications Interface Module, shown in diagram Operational Lug Kit Hardware form in figure 1, can be used with any SIKOSTART 3RW34 con- Current Part Torque Wire Size troller. The AS-i unit allows the controller to be a slave to an AS-...
  • Page 46 Fuse MLFB MLFB 3RW3454-0DC?4 3NE1820-0 3RW3455-0DC?4 3NE1225-0 3RW3457-0DC?4 3NE1230-0 3RW3458-0DC?4 3NE1230-0 3RW3465-0DC?4 3NE1230-0 3RW3466-0DC?4 3NE1230-0 3RW3467-0DC?4 3NE1332-0 3RW3472-0DC?4 3NE1334-0 3RW3483-0DC?4 3NE1436-0 3RW3484-0DC?4 2 x 3NE1334-0 2 x 500 3RW3486-0DC?4 2 x 3NE1436-0 2 x 630 Siemens Energy & Automation, Inc.
  • Page 47 3RW3472-0DC?4 3RW3472-0DC?5 3RW3472-0DC?5 3RW3472-0DC?5 3RW3472-0DC?5 3RW3483-0DC?4 3RW3483-0DC?4 3RW3483-0DC?4 3RW3483-0DC?4 3RW3483-0DC?5 3RW3483-0DC?5 3RW3483-0DC?5 3RW3483-0DC?5 3RW3484-0DC?4 3RW3484-0DC?4 3RW3484-0DC?4 3RW3484-0DC?4 3RW3484-0DC?5 3RW3484-0DC?5 3RW3484-0DC?5 3RW3484-0DC?5 3RW3486-0DC?4 3RW3486-0DC?4 1216 3RW3486-0DC?4 1216 3RW3486-0DC?4 3RW3486-0DC?5 3RW3486-0DC?5 1000 1200 1216 3RW3486-0DC?5 1216 3RW3486-0DC?5 Siemens Energy & Automation, Inc.
  • Page 48 1000 McKee Street Email: NST.Technical-Support@ERL7 .siemens.de Batavia, IL 60510 Tel: 630/879-6000 Tel: 800/323-5450 http://www.siemens.com/controlsusa Publication No. SFIS-4511B-0600 © 2000 Siemens Energy & Automation, Inc. Subject to change without prior notice Siemens is a registered trademark of Siemens AG. Printed in the U.S.A.

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