Epson 214D-1 user manual RC Networks for Interference Suppression

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Installation 43

should be as short as possible and connected to the grounding lug on the side of the case.

In order to comply with the requirements for Electromagnetic Compatibility as per EMC-Directive 89/336/EEC of the Council of European Community, this wiring practice is mandatory.

Although it is also possible to connect shields to the signal ground (terminal 2) this practice is not in accordance with EMC directives.

RC Networks for Interference Suppression

When driving highly inductive loads with the control relays, it is recommended that RC suppression networks (often called "Snubbers") are used for two reasons:

§To limit the amount of electrical noise caused by arcing across the relay contacts which may, in extreme cases, cause the microprocessor to act erratically.

§To protect the relay contacts against premature wear through pitting.

RC suppression networks consist of a capacitor and series resistor and are commonly available in the electrical industry. The values of R and C are dependant entirely on the load. However, if the user is unsure of the type of snubber to use, values of 0.25µF and 100 ohms will usually suffice. Note that only AC voltage approved RC suppression networks should be used.

The basic principle of operation is that the capacitor prevents a series of sparks from arcing across the contact as the contact breaks. The series resistor limits the current through the contact when the contact first makes

HP289

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Contents USER’S Manual HP289 HFC Warranty Contents HP289 Introduction Model 214D- a Model Number DesignationIntroduction 2A Introduction 2B This page intentionally left blank HP289 General SpecificationPulse Output Operation Front Panel Operation Setting the Batch QuantityDisplayed Information ResettingStarting a Batch StoppingAccumulated Total Limit on Batch SizeBatch Operations Page Control Relays Flow Alarm Signal TimeoutEnd-of-Batch End-of-Batch SignalAuto Restart Automatic Overrun Compensation Calculation of Rate and Total Frequency Input = fxHFiltering 103 For Example Total ConversionOutput Pulse and Flow Alarm Page Options RS232/422/485 Interface OptionHardware RS422 Interface HP289 Multipoint CommunicationRS485 Interface HP289 Printer Communication ProtocolComputer RUN ConfigurationPage Base Configuring the Setup ParametersStep Display Description Text Signal Timeout in seconds Setting to Disables this feature Entering the Batch ParametersDis EOB Date Configuring the OptionsEcho Checking the Input Signal Input Circuit for the 214D Series Input CircuitsGeneral Specification Switch SettingsInput Circuits Frequency Input Circuit HP289 Page Page Remote Key Switches General InstallationRC Networks for Interference Suppression Terminal RS232/422/485 Option Terminal Wiring DesignationsTerminal Relay Option & Switches TerminalDescriptionTrouble Shooting No end of batch, pulse output, or flow alarm Counting erraticallyInstrument acting erratically Configuration Errors Error CodesInput Errors Output ErrorsFront Panel IndexTerminal Wiring

214D-1 specifications

The Epson 214D-1 is a powerful and compact printer designed for both personal and professional use, standing out in the crowded market of small-format printers. This sleek device leverages advanced printing technologies to deliver high-quality prints with remarkable efficiency and speed.

One of the hallmark features of the Epson 214D-1 is its use of PrecisionCore technology, which enables it to produce sharp, detailed images and crisp text. This technology utilizes a unique micro-electromechanical system (MEMS) for precision droplet control, resulting in prints that boast vibrant colors and enhanced clarity. The printer is capable of handling a variety of media types, including plain paper, photo paper, and even specialty media, making it a versatile tool for various printing needs.

The Epson 214D-1 also features a user-friendly interface, complete with an intuitive control panel that simplifies operation. The printer supports wireless connectivity options, allowing users to print directly from their smartphones and tablets via Wi-Fi Direct or through mobile printing apps. This flexibility makes it easy to print documents and photos on the go, enhancing productivity for both home users and professionals alike.

With a compact design, the 214D-1 can fit easily into small home offices or workspaces, optimizing space without sacrificing performance. The printer also boasts a fast printing speed of up to 15 pages per minute for black-and-white documents and approximately 8 pages per minute for color prints, ensuring that users can keep pace with demanding workflows.

In terms of sustainability, the Epson 214D-1 is designed to be energy efficient, consuming less power during operation and standby modes. Additionally, it supports high-capacity ink cartridges that provide a lower cost-per-page, reducing the frequency of cartridge replacements and minimizing environmental impact.

Overall, the Epson 214D-1 stands as a reliable option for any individual or business looking for a compact, high-performance printer that excels in both quality and efficiency. With its innovative features and technologies, it is well-suited to meet a range of printing requirements while delivering exceptional results each time.
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