How to troubleshoot Ground Fault on Allen-Bradley Controller?
A ground fault in your Allen-Bradley Controller can occur if the ground fault current level has exceeded the programmed value, or if the delay time is too short for the application. Check the power system and motor, correcting any issues. Ensure the programmed ground fault levels match the application requirements and extend the delay time if needed.
What does No Load Fault mean on Allen-Bradley SMC-50 Controller?
A no-load fault on your Allen-Bradley Controller may be caused by a loss of load side power wiring with phase indication (15=A, 17=C) or a start command cycled unexpectedly with the motor rotating. Check all load side power connections and inspect the motor windings.
What causes Stall fault on Allen-Bradley Controller?
A stall condition on your Allen-Bradley Controller can occur if the motor did not reach full speed by the end of the programmed ramp time or if there's an incorrect user setting. Check the pump system, machine drive components, and loading. Repair or replace the motor if necessary and verify the settings.
What to do if Allen-Bradley SMC-50 Controller shows Motor PTC fault?
A Motor PTC error on your Allen-Bradley Controller can be triggered by blocked motor ventilation, an exceeded motor duty cycle, or a PTC that is either open or shorted. Check for proper ventilation and the application duty cycle. Allow the motor to cool or provide external cooling, then check the resistance of the PTC.
What to do if Allen-Bradley Controller shows Overload?
If your Allen-Bradley Controller indicates an overload, it could be due to the motor being overloaded or the overload parameters not matching the motor. Check the motor overload condition. Also, verify the values for the overload class and motor FLC, and check the current draw of the motor.
How to fix Line Fault with Phase Indication on Allen-Bradley Controller?
A line fault with phase indication on your Allen-Bradley Controller can be caused by a missing supply phase, the motor not being connected properly, or incoming 3-phase voltage instability. To resolve this, check for an open line (blown fuse), inspect for an open load lead, and verify the power quality.
Why Allen-Bradley SMC-50 shows Undervoltage and how to fix it?
An undervoltage issue with your Allen-Bradley Controller typically arises when the supply voltage is less than the user-programmed value, or the delay time is too short for the application. You should check the power system and correct it if necessary. Alternatively, correct the user-programmed value or extend the delay time to match the application requirements.
Why Allen-Bradley SMC-50 Controller shows Overvoltage and what to do?
If your Allen-Bradley Controller is showing an overvoltage error, it could be because the supply voltage is greater than the user-programmed value, or the delay time is too short for the application. To address this, check the power system and correct if necessary, or adjust the user-programmed value. You can also extend the delay time to better suit the application requirements.
What causes Voltage Unbalance on Allen-Bradley SMC-50?
Voltage or current imbalance in your Allen-Bradley Controller can be due to the supply unbalance being greater than the user-programmed value, or the delay time being too short for the application. Check the power system and correct it if necessary, then correct the user-programmed value. Also, extend the delay time to match the application requirements.
What causes PTC Power Pole and SCR Overtemp on Allen-Bradley Controller?
If your Allen-Bradley Controller displays PTC Power Pole and SCR Overtemp errors, it could be due to blocked controller ventilation, an exceeded controller duty cycle, fan failure, exceeding the ambient temperature limit, or a failed thermistor. Check for proper ventilation and the application duty cycle. Allow the motor to cool or provide external cooling. Replace the power module or control module as needed, and replace the fan if it has failed.
General| Brand | Allen-Bradley |
|---|---|
| Model | SMC-50 |
| Category | Controller |
| Language | English |
General introduction to the SMC-50 controller, its function, and compatibility.
Description of the chassis-mount medium voltage solid-state controller for OEM applications.
Description of the medium voltage solid-state controller for existing starter integration.
Description of the medium voltage solid-state controller for new installations with isolation and protection.
Details the standard starting and stopping modes and features of the SMC-50 control module.
Explains various motor starting modes like Soft Start, Torque Control, and Current Limit.
Details the available motor stopping modes such as Coast, Soft Stop, and Linear Deceleration.
Overview of the protective features offered by the SMC-50 module for motors and starters.
Configuration and function of the built-in motor overload protection device.
Description of the controller's system components and their operation.
Provides functional descriptions and control circuits for IntelliVAC units.
Instructions for inspecting and accepting equipment shipments.
Highlights essential safety precautions and compliance with electrical codes.
Procedure for checking received items against the bill of lading and for physical damage.
Important statements for system installation, handling, and general safety.
Guidelines for safely transporting and handling the controller equipment.
Criteria for selecting an appropriate installation site, considering environmental factors.
Details on the designed mounting orientation and cabinet requirements.
Purpose and methods for proper grounding of the controller and associated equipment.
Specified torque values for various fasteners during reassembly and installation.
Procedures for making three-phase supply and grounding conductor connections.
Ensuring circuit isolation through mechanically interlocked doors and panels.
Guidelines for handling and protecting fragile fiber-optic cables during installation.
Information on installing power factor correction capacitors to prevent damage to SCRs.
Recommendations regarding the placement of motor surge capacitors and arresters.
Details on standard overload protection and considerations for two-speed and multi-motor setups.
Guidelines for ensuring electromagnetic compatibility during installation.
Instruction to install the product in a grounded metal enclosure.
Recommendations for physical separation of wire groups (power, control, signal) for EMC compliance.
Information on control voltage requirements and connection procedures.
Steps for preparing the work area and gathering necessary test equipment.
Data fields for recording job information and actual motor load details.
Critical checks to be performed before energizing the equipment.
A checklist of essential verification steps before proceeding with system startup.
Procedures for testing insulation levels of power equipment before energizing.
Process for identifying motor parameters and detecting motor connection type for optimal control.
Procedures for verifying power supply voltages to control circuits and gate driver boards.
Tests to ensure resistors and connections are not damaged during shipment and installation.
Introduction to programming and configuration tools for modifying SMC-50 parameters.
Details the capabilities and connection of the HIM for configuring the controller.
Procedure for changing the password to protect parameter modification.
How to set parameter access levels (Monitor, Basic, Advanced) for user control.
Understanding the memory structure within the SMC-50 for programming.
Methods for searching and modifying parameters by number or file-group.
Parameters for programming a soft start with simple stop mode operation.
Configuration of motor and starter protection functions and fault/alarm settings.
Introduction to the full-function metering package provided by the SMC-50.
Procedure to access metering information using the 20-HIM-A6 keypad.
Instructions for clearing metering parameters like Elapsed Time and Starts to PM.
Detailed listing of measured parameters including Current, Voltage, Power, and THD.
Introduction to unique control options for enhanced motor starting and stopping.
Details the functionality of control buttons on the 20-HIM-A6 LCD module.
Describes how to use the HIM Control Screen for direct drive control.
Information on the CopyCat function for parameter transfer using the 20-HIM-A6.
Introduction to the advanced communication capabilities of the SMC-50 module.
Details the four DPI ports supported by the SMC-50 for communication devices.
Instructions on how to connect a HIM and DPI device to the SMC-50 control module.
Configuration of communication devices for performing motor control commands.
Procedure to enable or disable motor control via DPI ports using the HIM.
Default configuration for I/O communication and data link sizes.
Provides Product Functional (Logic) Status and details on parameter 43.
Guidance on applying proper scaling factors for reading/writing PLC values.
Description of fault diagnostics and conditions causing faults in the controller.
Explanation of the Diagnostic LED Status Indicator and HOLD TO TEST button.
How the HIM displays fault information, including fault code and elapsed time.
Methods for clearing a fault condition from the controller.
Stores recent Fault and Alarm codes in parameter memory.
Procedure to access Fault and Alarm buffers using the 20-HIM-A6.
Cross-reference of available fault codes and their corresponding descriptions.
Safety guidelines for maintenance personnel and overview of troubleshooting flowchart.
Procedure for safely removing the control module from the unit.
Instructions for replacing the RTC coin cell battery when the low battery alarm is activated.
Methods for checking feedback circuits by measuring voltages at the interface board.
Procedure for replacing the voltage sensing board assembly.
Information on the current loop gate driver power sources and their function.
Precautions and steps for replacing printed circuit boards.
Troubleshooting steps for power semiconductor issues.
Detailed procedure for removing and replacing SCR stacks from the unit.
Testing procedures for snubber components and sharing resistors.
Guidance on handling and replacing ceramic wire-wound snubber resistors.
Configuration for Fault/Alarm to indicate when PM is due based on operating hours.
Configuration for Fault/Alarm to indicate when PM is due based on number of starts.
Emphasis on technician familiarity, system layout, and competent supervision.
Guidelines for periodic inspection of industrial control equipment.
Steps to eliminate dust, moisture, or other contamination from control equipment.
Visual inspection of vacuum bottle contacts and wear indicators.
Checking tightness of terminals and bus bar connections to prevent overheating.
Recommendations for periodic visual inspection of printed circuit boards.
Precautions for handling static-sensitive components like circuit cards and SCRs.
Guidance on maintenance procedures after an overload fault condition.
Testing the control system for proper functioning under controlled conditions post-maintenance.
Importance of good maintenance records for locating intermittent problems and reducing shutdowns.
Precautionary information for environmental protection and handling of materials.
Handling and disposal guidelines for circuit boards containing lead.
Instructions for disassembling and separating product components for recycling.
Comprehensive list of SMC-50 parameters with their details.
Outline of starting duty cycles for Bulletin 1560F and 1562F controllers.
Functional descriptions and control circuits for units using electromechanical (relay) control.
Description of controller operation when wired as shown for standard relay control.
Description of controller operation when using programming interface control.
Operation description for Bulletin 1560F when added to an existing motor controller.
Operation description for Bulletin 1560F using programming interface control.
Introduction to ArcShield units and their robust arc resistant enclosure design.
Details on the pressure relief vent and sealed low voltage panel area for arc flash safety.
Information on plenum systems for directing hazardous flames and gases away from the enclosure.
Options and requirements for locating the plenum exhaust safely.
Guidelines for providing chimney systems where clean height is available.
Ensuring minimum clear distance and unobstructed path for chimney exhaust.
Specified torque values for 1/4-20 and 5/16-18 thread fasteners.
Ensuring plenum bracing withstands dynamic forces from arc faults and seismic effects.
Example configuration of a general plenum assembly for MV enclosures.
Procedure for removing the front duct section and preparing for plenum mounting.
Instructions for placing and securing the plenum over the enclosure's relief vent.
Method for fastening side-by-side plenums using supplied hardware.
Order of operations for mounting plenums and enclosures before re-attaching front duct sections.
Procedure for closing up the plenum assemblies by replacing front duct sections.
Steps for attaching 36" Extension components and 90° Elbow Sections.
Mounting extensions and elbows to the last plenum on the exhaust side.
Requirements for additional mounting support for extension/elbow assemblies.
Specified torque values for 1/4-20 and 5/16-18 thread fasteners for chimney installation.
Example configuration of a general chimney assembly over MV enclosures.
Steps to prepare the MV enclosure by removing fasteners for chimney mounting.
Instructions for lifting and attaching the chimney over the relief vent.
Overview of DeviceLogix as a standard feature for controller control and monitoring.
Reference to DeviceLogix parameters for configuration and control.
Available function block elements including Bit/Analog I/O and Process blocks.
Information on creating and using custom Macro Blocks within DeviceLogix.
Details on the bit and analog I/O points utilized by the DeviceLogix controller.
Description of available bit inputs for DeviceLogix programming.
Description of available bit outputs for connecting to real-world devices.
List of available analog inputs and their data points for DeviceLogix.
Available analog outputs for DeviceLogix program are all 32-bit integers.
Information on the SMC-50 control module's scratchpad registers for DeviceLogix.
Demonstrates how to use basic control logic for motor control applications.
Part numbers for replacement SCRs and complete power stacks.
List of common spare parts including resistors, cables, and power supplies.
Part numbers for various interface board configurations.
Part numbers for various spare parts and accessories.
Catalog numbers for HIM and various communication modules.
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