Siemens SINAMICS DCM Manual
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Siemens SINAMICS DCM Manual

Siemens SINAMICS DCM Manual

Dc converter closed-loop control application for a ward-leonard block
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SINAMICS DCM
DC Converter
Closed-loop control application for a
Ward-Leonard block
Edition 02 - 06/2013
SINAMICS drives

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Summary of Contents for Siemens SINAMICS DCM

  • Page 1 SINAMICS DCM DC Converter Closed-loop control application for a Ward-Leonard block Edition 02 - 06/2013 SINAMICS drives...
  • Page 2 WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems.

  • Page 3: Table Of Contents

    The contract of sale in each case outlines all the obligations of the I DT Drive Technologies Division of Siemens AG. The warranty conditions specified in the contract between the parties are the only warranty conditions accepted by the I DT Drive Technologies Division. Any statements contained herein neither create new warranties nor modify the existing warranty.

  • Page 4: Introduction

    2. In the event of a fault in the SINAMICS DCM, monitoring should be used in the motor generator circuit. If an error occurs in the SINAMICS DCM for the generator field, its current is brought to zero. If the motor rotates, a higher armature current can occur.

  • Page 5: Typical Connections

    Typical connections Closed-loop control application for a Ward-Leonard block C98130-A7066-A511-02-7619, 06/2013...

  • Page 6: Selection Of The Components

    1. SINAMICS DCM for generator field The SINAMICS DCM for the generator field should be a 4Q device. The 4Q version is required to obtain both polarities in the generator voltage. Operation of the motor is therefore possible in both directions of rotation.
  • Page 7 For 460/500 V line voltage, the following overvoltage protection is recommended: up to 400 Ws: Varistor SIOV-B32K550 up to 2000 Ws: Varistor SIOV-B80K550 >2000 Ws: 7VV3003-6CG30 (overvoltage protection with thyristor for 4Q) 6. Semiconductor protection fuses and line reactors The types of semiconductor fuses and line reactors are specified in catalog D23.1. Closed-loop control application for a Ward-Leonard block C98130-A7066-A511-02-7619, 06/2013...

  • Page 8: Block Diagram For Closed-Loop Control Of The Sinamics Dcm For The Generator Field

    Block diagram for closed-loop control of the SINAMICS DCM for the generator field Analog speed setpoint input from the isolating amplifier generator voltage from the isolating amplifier armature current, motor from the isolating amplifier motor voltage Setpoint enable from Run signal...

  • Page 9: Start/Stop Function And Device Control

    Comments ON/OFF1 From terminal X177.12. For PROFIBUS: terminal X177.12 & bit from PROFIBUS Is forwarded peer-to-peer to the SINAMICS DCM for the motor at the same time as "ON/OFF1". "ON" simultaneously issues the controller enable. A separate controller enable should not be used for this application.
  • Page 10 In "Operation", a high signal is output via terminal X177.19. "Fault" signal In the case of an error message in the SINAMICS DCM, a low signal is output via terminal X177.20. In the case of an error message in the SINAMICS DCM for the motor field, the actual current value signaled to the generator control becomes zero and the generator switches off with F60105.

  • Page 11: Sinamics Dcm Parameter Assignment For Motor Field

    SINAMICS DCM parameter assignment for motor field After "Setting general parameters", the current controller optimization run p50051 = 25 should be performed. Only when this has been completed should you perform "Settings for the further parameters". Use terminal X177.12 for "ON/OFF1" for the current controller optimization run.

  • Page 12: Sinamics Dcm Parameter Assignment For Generator Field

    Negative current limit -100 % of p50100 p51838= The value of r50072[1] of the SINAMICS DCM for the motor field must be set here. p50179[0]= 3 to 7 depending on the inductance of the generator field Generator field controller...
  • Page 13 Parameter Meaning The following parameters are in DO2 p20000[0] = 4 Runtime group 0 is calculated with 4 ms P20000[1]=1002 Runtime group 1 is calculated with 16 ms Armature current controller for generator by technology controller Parameter Meaning p02280=0.1 Proportional gain for armature current controller. Should be optimized manually. p02285=0.5 Integral time for armature current controller.
  • Page 14 Parameter Meaning p20218[1]= of measured motor speed as X1 for NSW 0 r0061[0]: For pulse encoder operation r52013: For analog tachometer r20103: For EMF control (operation without tachometer) from SUB 0 p20219=20047 From signal AS, r20047, switching to measured speed p20221=0 NSW 0 is calculated in runtime group 0 p20222=1020...
  • Page 15 Field weakening characteristic Parameter Meaning p50117[0]= Control word "Field characteristic included", in case of manual characteristic curve recording after setting characteristic curve p50117 to 1 p50118[0]= Rated motor EMF. The value is not correct for this application because it is derived from p50078[0] in the device.
  • Page 16 Parameter Meaning p20048=1 Runtime group 1 for OR 0 p20049=1080 Run sequence for OR 0 Tachometer failure monitoring: "External Fault 3", F07862 Parameter Meaning Free multiplier MUL 1 for scaling the EMF for the tachometer monitoring p20114[0]=20129 |EMF|, r20129 at input X0 of MUL 1 p20114[1]=52403 Multiplication with the field-weakening range, r52403, set in p50403[0] at input X1 of MUL 1 p20114[2]=1...
  • Page 17 Parameters for the binary outputs Parameter Meaning p50771=899.02 "Operation" signal via terminal X177.19; in the "Operation" state (SINAMICS DCM produces current), high signal is output p50772=2139.03 "Fault" signal via terminal X177.20; if an error message is present, a low signal is output p50770[1]=1 Inversion of the fault bit for output of a low signal at terminal X177.20 in the event of a fault...

  • Page 18: Commissioning

    Speed setpoint 2. Connections Deactivate the Ward-Leonard block. Disconnect the existing wiring and rewire a new SINAMICS DCM according to Section 3 "Typical connections". 3. Adjusting the isolating amplifiers The isolating amplifiers must be adjusted before use, and their polarity checked. To do this, use appropriate test voltages to simulate the actual values.
  • Page 19 Verify the polarity of the armature current for driving forward. Shut down the SINAMICS DCM and for the next step: Prepare the armature current control. 6. Optimizing the armature current controller The armature current controller must be optimized manually. This can be carried out using the test generator described under field current control.
  • Page 20 Verify that the zero volt control is working properly when the circuit breaker for the armature circuit is open. Trademarks All names identified by ® are registered trademarks of the Siemens AG. The remaining trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.

  • Page 21: Instructions

    Operating Instructions Edition 12/2010 Siemens AG Subject to change Industry Sector C98130-A7066-A511-02-7619 P.O. Box 48 48 © Siemens AG 2011-2013 90026 NUREMBERG GERMANY www.siemens.com/automation...

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