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Allen-Bradley SMC-50 Quick Start Manual

Smart motor controller
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Quick Start
Original Instructions
SMC-50 Smart Motor Controller
Bulletin150
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Summary of Contents for Allen-Bradley SMC-50

  • Page 1 Quick Start Original Instructions SMC-50 Smart Motor Controller Bulletin150...

  • Page 2: Important User Information

    Important User Information Read this document and the documents listed in the additional resources section about installation, configuration, and operation of this equipment before you install, configure, operate, or maintain this product. Users are required to familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws, and standards.

  • Page 3: Table Of Contents

    Bypass Operation and Diagrams ....... . 19 SMC-50 Controllers with Internal Bypass ....19 SMC-50 Controllers with External Bypass.
  • Page 4 Table of Contents Appendix A SCCR Ratings SCCR Ratings ..........35 Rockwell Automation Publication 150-QS003E-EN-P - April 2017...

  • Page 5: Preface

    This quick start guide provides you with the basic information that is required to install, start up, and program your SMC™-50 Soft Starter. The SMC-50 soft starter is a reduced voltage soft starter that uses a state-of- the-art microprocessor- based control module. By using six back-to-back...

  • Page 6: General Precautions

    Failure to do this may result in personal injury and/or equipment damage. • Hazardous voltage is present in the motor circuit even when the SMC-50 controller is off. To avoid shock hazard, disconnect the main power before working on the controller, motor, and control devices such as Start-Stop push buttons.

  • Page 7: Summary Of Changes

    SMC controller. Installing PFCCs on the load side results in SCR damage and failure. • The ground fault sensing feature of the SMC-50 controller is intended for monitoring purposes only and not as a ground fault circuit interrupter for personnel protection as defined in Article 100 of the NEC. The ground fault sensing feature has not been evaluated to UL 1053.
  • Page 8 Preface Notes: Rockwell Automation Publication 150-QS003E-EN-P - April 2017...

  • Page 9: Installation

    Chapter Installation Enclosures The open-style design of the SMC-50 controller requires that you install it in an enclosure. IMPORTANT The ambient temperature (open air) or internal enclosure temperature without derating must be kept within the specified range. See Table Table 1 - SMC-50 Controller Enclosure Requirements...

  • Page 10: Mounting Requirements

    The controller must be mounted in a vertical plane and have a minimum of 6 in. (150 mm) free space above and below the controller. Horizontal mounting of the SMC-50 controller is not allowed. Enclosure must be sized such that the enclosure’s internal temperature remains within specified controller ratings.

  • Page 11: Dimensions

    For complete dimension drawings, see the user manual, publication 150-UM011, or consult your local Rockwell Automation sales office or Allen-Bradley distributor. Figure 2 - SMC-50 Soft Starter with Integral Bypass Approximate Shipping Cat. No.

  • Page 12: Power Wiring

    (PFCCs). The PFCCs must only be on the line side of the controller. Placing the PFCCs on the load side of the SMC results in damage to the SCRs in the SMC-50 controller. For additional details, see the user manual, publication 150-UM011.

  • Page 13: Power Lugs

    90…520 A (solid-state). These lugs are sold in kits. Each kit contains three lugs. Table 3 through Table 6 list the number and type of lugs required. Table 3 - SMC-50 Integrated Bypass Devices Connection Lug Information for Line/Wye Connected Motors Max No. Lugs/Pole Tightening Torque Lug Kit Wire Strip Cat.

  • Page 14: Typical Power Diagrams

    (2) For North American applications, size the contactor per the motor Hp and FLA. For IEC applications, size the contactor per the motor AC-1 or AC-3 rating. The short-circuit rating of the contactor must be similar to that of the SMC-50.

  • Page 15: Control Wiring

    SMC-50 controllers come standard with two 24V DC digital on/off inputs and two relay outputs for auxiliary control functions. The standard digital I/O wiring terminal block is on the upper right portion of the SMC-50 controller. The terminal block is removable.
  • Page 16 Chapter 1 Installation Figure 5 - Standard Control Terminal Block Identification Aux 1 Aux 2 Control Power 24V DC Inputs Relay Outputs and Ground (1) See the controller nameplate to verify the control power ratings (120/240V AC or 24V DC). ATTENTION: IN1 DC (terminal 11) and IN2 DC (terminal 10) are 24V DC inputs on controllers rated 120/240V AC and on controllers rated 24V DC.

  • Page 17: Typical Control Wiring Examples

    TIP When you are using two-wire control with IN1 and/or IN2 set for either Start/Stop or Start/Coast, you cannot start the SMC-50 controller via a HIM. If you want to start and stop the motor in test mode via a HIM, use the following steps: •...
  • Page 18 Chapter 1 Installation Figure 7 - Three-wire Control (with or without DPI) with Up-to-speed Indication and Isolation Contactor Up-to-speed Isolation Indication Contactor Stop Control Power Start Control Ground Aux 1 Aux 2 (1) Customer supplied. (2) See the controller nameplate to verify the control power input ratings (120V/240V AC or 24V DC). (3) Terminal 11 (IN1) 24V DC is configured for START input using Parameter 56.

  • Page 19: Fan Wiring

    ATTENTION: There is the potential to have voltage values above 220V AC on the option modules. Before removing the control module cover to access option modules, disconnect ALL power to the SMC-50 controller. Do not remove or add option modules while power is applied.
  • Page 20 (3) See the SMC-50 Controller selection guide, publication 150-SG010, or SMC-50 controller user manual, publication 150-UM011, for a list of compatible 20-COMM-X communication modules. (4) When installed in an SMC-50 controller, 20-COMM-X modules physically reside in the space assigned to Port 9, but connect to DPI Port 4 with a ribbon cable that is supplied with the communications module.

  • Page 21: Bypass Operation And Diagrams

    Diagrams SMC-50 Controllers with Internal Bypass SMC-50 controllers with internal bypass have one or more built-in contactors that close when the motor is up to speed. This reduces heat because the motor current is now flowing though the internal bypass contactor(s) and not through the SCRs.
  • Page 22 This could potentially result in overheating or damage to the motor. To prevent potential personal injury or equipment damage, the installation of an isolation contactor or shunt trip-type circuit breaker capable of interrupting the motor’ s locked rotor current on the line side of the SMC-50 controller is recommended.
  • Page 23 (3) In Bypass Contactor RUN operation, the 825-MCM and the 150-SM2 module provide current-based protective feedback features including overload. Only the cable that is provided with the 825-MCM converter can be used in this configuration. The maximum cable length is 4 m, thus the 825-MCM must be located within 4 m of the SMC-50 controller.
  • Page 24 This could potentially result in overheating or damage to the motor. To prevent potential personal injury or equipment damage, the installation of an isolation contactor or shunt trip-type circuit breaker capable of interrupting the motor’ s locked rotor current on the line side of the SMC-50 controller is recommended.

  • Page 25: Programming

    Controls Stop Function Start Starts the controller if the SMC-50 Logic Mask is enabled for the port the HIM is connected to. Folders Accesses folders for parameters, diagnostics, memory functions, preferences, and other tests. Controls Accesses jog, auto/manual, and other control functions.

  • Page 26: Basic Parameter Access And Category/File Structure

    4. Communications 5. Utility The Cat. No. 20-HIM-A6 can access any or all parameters that reside in any category. The following examples show how to access the SMC-50 parameters with the 20-HIM-A6. EXAMPLE To perform a parameter number search and modification, perform the following procedure.

  • Page 27: Category/File Structure

    Programming Chapter 2 Category/File Structure Table 10 - Category/File Structure of the SMC-50 Controller Monitoring Set Up Metering Basic Start Stats Basic Stopping Advanced Advanced Tuning Volts P-P Ave Start Time 1 Motor Connection Stop Mode Pump Pedestal Force Tuning...
  • Page 28 Chapter 2 Programming Table 11 - Category/File Structure (Continued) Motor Protection Communications Utility Overload Stall Leading PF Current THD Comm Masks Preferences Motor Fault En Motor Fault En Motor Fault En Logic Mask Language Motor Fault En Motor Alarm En Motor Alarm En Motor Alarm En Logic Mask Act...

  • Page 29: Quick Setup

    Enter the value of the maximum current that is allowed during the ramp time. 50…600% FLC Level Input 1 Allows the selection of how input 1 (CM terminal #11) affects the function of the SMC-50 Disable, Start, Coast, Start/Coast controller.
  • Page 30 Chapter 2 Programming Notes: Rockwell Automation Publication 150-QS003E-EN-P - April 2017...

  • Page 31: Operation And Troubleshooting

    Motor tuning is done automatically by the controller on initial motor start or forced to occur by the user. You can also enter the configuration of the Motor Connection, Parameter 44, into the SMC-50 controller. You must enter the Motor Line Voltage rating, Parameter 46, to enable the motor protection features to function (default 480V).

  • Page 32: Resistive Load Control

    (Output V Ref, Analog Input, or DeviceLogix™) as a percentage of the full voltage range. You can change the value of the reference source while the SMC-50 controller is in a run state.

  • Page 33: Troubleshooting With Diagnostic Leds

    The SMC-50 controller’s multi-color LED Status Indicator and HOLD TO TEST, PUSH TO RESET button are located below the HIM bezel port. The Status LED indicates the status and fault conditions of the SMC-50 controller. Table 13 - Corresponding LED Color and Fault Conditions...
  • Page 34 Chapter 3 Operation and Troubleshooting Table 15 - SMC-50 Controller Fault Codes Display Fault HIM or Enabled Possible Causes Possible Solutions Software Fault Code Line Fault with 1, 2, 3 Prestart • Missing supply phase • Check for open line (blown fuse) •...
  • Page 35 Operation and Troubleshooting Chapter 3 Display Fault HIM or Enabled Possible Causes Possible Solutions Software Fault Code Line Power Quality 52, 53, 54 Start or • Incoming 3-phase voltage instability or • Check supply voltage for capability to start/stop motor; check for loose with Phase Stop distortion...
  • Page 36 Chapter 3 Operation and Troubleshooting Notes: Rockwell Automation Publication 150-QS003E-EN-P - April 2017...

  • Page 37: Sccr Ratings

    Appendix SCCR Ratings SCCR Ratings Table 17 - SCCR (High Capacity Fault) Electrical Ratings for Integrated Bypass Units Type 1 Coordination SCPD Performance Class J or Class L Fuse Inverse Time (Thermal Magnetic) Circuit Breaker 480V, 65 kA Maximum Current Maximum Motor Connection Bul.
  • Page 38 Appendix A SCCR Ratings Table 18 - SCCR (High Capacity Fault) Electrical Ratings for Solid-state Units Type 1 Coordination SCPD Performance Class J or Class L Fuse Inverse Time (Thermal Magnetic) Circuit Breaker Current [A] 480V, 65 kA Maximum Current Maximum Motor Connection Bul.
  • Page 40 Rockwell Automation maintains current product environmental information on its website at http://www.rockwellautomation.com/rockwellautomation/about-us/sustainability-ethics/product-environmental-compliance.page. Allen-Bradley, Connected Component Workbench, DeviceLogix, DPI, PowerFlex, Rockwell Software, Rockwell Automation, SMB, SMC, and TechConnect are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies.

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