Sterling 100, 600 Safety Devices and Interlocks, Safety Circuit Standards, Fail Safe Operation

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2-5 Safety Devices and Interlocks

This section includes information on safety devices and procedures that are inherent to the continuous loss-in-weight blender. This manual is not intended to supersede or alter safety standards established by the user of this equipment. Instead, the material contained in this section is recommended to supplement these procedures in order to provide a safer working environment.

At the completion of this section, the operator and maintenance personnel will be able to do the following:

•Identify and locate specific safety devices.

•Understand the proper use of the safety devices provided.

•Describe the function of the safety device.

Safety Circuit Standards

Safety circuits used in industrial systems protect the operator and maintenance personnel from dangerous energy. They also provide a means of locking out or isolating the energy for servicing equipment.

Various agencies have contributed to the establishment of safety standards that apply to the design and manufacture of automated equipment. The Occupational Safety and Health Administration (OSHA) and the Joint Industrial council (JIC) are just a few of the organizations that have joined with the plastics industry to develop safety standards.

Every effort has been made to incorporate these standards into the design of the continuous loss-in-weight blender; however, it is the responsibility of the personnel operating and maintaining the equipment to familiarize themselves with the safety procedures and the proper use of any safety devices.

Fail Safe Operation

If a safety device or circuit should fail, the design must be such that the failure causes a “Safe” condition. As an example, a safety switch must be a normally open switch. The switch must be held closed with the device it is to protect. If the switch fails, it will go to the open condition, tripping out the safety circuit.

At no time should the safety device fail and allow the operation to continue. For example, if a safety switch is guarding a motor, and the safety switch fails, the motor should not be run.

Continuous Loss-in-Weight Blenders Chapter 2: Functional Description

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Contents Continuous Loss-in-Weight Blenders Shipping Information Warranty Returns Credit ReturnsTable of Contents Maintenance Safety Symbols Used in this Manual SafetyHow to Use This Manual Continuous Loss-in-Weight Blender Safety Tags Description Follow all Safety Codes Wear Safety Glasses and Work GlovesResponsibility General ResponsibilityOperator Responsibility RememberMaintenance Responsibility Reporting a Safety DefectAccessories Customer ServiceFunctional Description Models Covered in This ManualTypical Features & Components Mechanical FeaturesController Features Electrical FeaturesBlender System Component Description Ingredient Weigh Hoppers Ingredient Metering/Transport Auger Assemblies Metering Auger Components Cascade Material ChuteLower Mass Flow Weigh Hopper Assembly Weigh Hopper Assembly Fixed Rate modePLC Control Panel Touch Screen InterfaceMotor Drive Panel Optional Quick Color Change KitRemote Display OptionsMezzanine stand with slide gate and 4 tube stub Fail Safe Operation Safety Devices and InterlocksSafety Circuit Standards Amphenol quick connect Plug Connected to Each Auger Motor Safety Device Lock-OutsPluggable Line Cord Rigging and Placing the Unit InstallationUncrating the Equipment Machine Mount Mounting ConfigurationSite Requirements Mezzanine Mount Offset Mezzanine Mount PositionFloor Mount Electrical Installation Typical Layout for a floor mounted blenderPneumatic Installation Pneumatic Air SystemOverall Installation Summary Load Cell Adjustment Set-upFinal Connections Controller Setup Scale CalibrationBlender Calibration Weight Scale Calibration Page Feeder Calibration Touch the Calibration button Setting Hopper Size Capacity @35 lbs. / cu. ftService Touch Hopper SetupSetting Passwords Touch User Password Alarm Setup Touch Alarm Setup Page Setting Blender for English or Metric How to use Fifo Diagnostics Continuous Loss-in-Weight Blenders Installation Page General Operation OperationStart-up Manual Backup Control System Controller Description & Operation Display DescriptionContinuous Loss-in-Weight Blenders Operation Setting a Recipe Clean OutMaintenance Preventative Maintenance ScheduleContinuous Loss-in-Weight Blenders Chapter Maintenance Typical Blender Parts List Typical Weigh Hopper Assembly Parts ListChapter Appendix Spare PartsAnnex B Information Programmable Settings Addendum Service Supervisor InformationPasswords Advanced Hopper Options Feed Factor Filter Steady Feed FactorMax WTP/RPM Re-fill PercentagePID Timer Steady System LimitSteady System Time Test PID GainExtruder RPM Options PID Integral ConstantFeeder Speed Limits Allowed Extruder RPM Change for Steady Flag Update Time for Prox Method in secondsExtrusion Control Options Feeder Setup No Flow Bits Advanced Alarm OptionsNo Flow Timer Service Department Technical AssistanceParts Department Sales Department

060, SLC 5/04, 015, 600, 100 specifications

Sterling 100,600,015 SLC 5/04,060 is a robust and versatile industrial automation controller designed to meet the demands of various industrial applications. As part of the Sterling lineup, this model is particularly known for its reliability and advanced features that enhance operational efficiency.

One of the main features of the Sterling 100,600,015 SLC 5/04,060 is its modular architecture, which allows users to customize the system based on their specific needs. The controller supports a wide range of I/O modules, providing flexibility in expanding or modifying the system as production requirements change. This modularity ensures scalability, making it suitable for both small-scale and large-scale applications.

The controller operates on the well-established Allen-Bradley SLC 500 platform, which is known for its stability and ease of use. With a processing speed of 100 kHz, the SLC 5/04,060 can handle multiple tasks simultaneously, ensuring precise control over processes. This speed is complemented by a large memory capacity, allowing for complex programming and data storage without compromising performance.

In terms of communication, the Sterling 100,600,015 SLC 5/04,060 features multiple communication ports, including RS-232 and RS-485 interfaces, making it compatible with various devices and systems. This capability enables seamless integration with existing networks, as well as the implementation of modern network protocols like Ethernet for greater connectivity and data transfer efficiency.

The controller is also equipped with advanced diagnostics capabilities, enabling users to monitor system performance in real-time. This feature not only helps in quick troubleshooting but also aids in predictive maintenance strategies, reducing downtime and optimizing productivity.

In addition to its hardware features, the Sterling 100,600,015 SLC 5/04,060 supports a range of programming languages, including ladder logic, structured text, and function block diagrams. This versatility allows engineers and technicians to choose the most suitable approach for their specific projects, making the development process more intuitive and efficient.

Overall, the Sterling 100,600,015 SLC 5/04,060 is a powerful and adaptable solution for industrial automation, combining advanced technology with ease of use, making it an ideal choice for businesses seeking to enhance their operational capabilities and efficiency.
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