Emerson 400276-01 operation manual Selecting An Enclosure, Enclosure Size

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Installation

of Electro-Magnetic Interference (EMI). A foil shield is the most effective way to minimize Radio Frequency Interference (RFI).

A cable that provides both types of shielding is preferred, however, a braided shield alone will usually provide adequate protection. To reduce chances of ground loops, shields should be grounded only on one end, preferably at the signal source.

Selecting An Enclosure

The Emerson Motion Control 525 PMC is designed for the industrial environment. However, no sophisticated electronic system can tolerate certain atmospheric contaminants such as moisture, oils, conductive dust, chemical contaminants and metallic particles. Therefore, if the 525 PMC is going to be subjected to this type of environment, it must be back mounted verticality in a metal NEMA type 12 enclosure. Proper ventilation and filtering must also be provided. If the equipment environment is above 80 F, cooling should be considered.

Enclosure Size

The size of the enclosure will determine how long it takes the temperature inside to rise. It will also affect the thermal transfer of the enclosure. Normally, the larger the enclosure the better the thermal transfer. Thermal transfer is also affected by venting, forced air cooling, and the enclosure material.

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Contents Programmable Motion Controller Installation Programmable Motion Controller Programmable Motion Controller Disclaimer Product Overview IntroductionExternal Drive Interface Command SignalsPulse Mode Indexing ModeAnalog Mode Operating ModesProgrammable Motion Controller Safety Installation OverviewGrounding AC Input LineSystem Grounding illustration Electrical NoiseMagnetic Coil Noise Wiring LayoutShielding Enclosure Size Selecting An EnclosureEncoder Model SDC-15-1, 1024 Line Density Encoder FeedbackEncoder, Model SDC-25-1, 1024 Line Density Encoder Sine Wave SignalsEncoder Signal Quality Encoder Square Wave SignalsModel SDC-15-1 Encoder Connections Encoder Feedback CablesEncoder input signals Signal DiscriptionsExternal Drive Connections To The 525 PMC Encoder +5VDC supplyCommand Output Polarity Command + and Command OutputSignal Path ShieldFeedback Current Drive Enable OutputsInputs 1 Drive Reset Outputs Drive Enable OutputsMinimum System Configuration Minimum System ConfigurationOperating Modes Control Interface Command DeviceControl Dip Switches/Mode Selection Factory Defaults Shown Mode SelectionPulse Mode Pulse ModeCommand Connector Circuit Example Of Sinking/Sourcing Connections Analog Velocity/Torque Mode Analog Mode Velocity or TorqueCommand Input Circuit Serial Interface Multi-Drop ConfigurationSerial a Serial BMulti-Drop Connection Dip Switch SettingsDip Switches Factory Defaults Shown Serial Cables Dip Switch Function DescriptionsTIX-XXX & TIA-XXX Wiring Diagrams 525 PMC To IBM Serial Port O Nomenclature Input Output InterfaceInput and Output Functions Input and Output Wiring, Sinking and SourcingPCM Modules I/O Connections Installation of Application ModulesO Connections IOM-1 And PCM Modules Setting the Fault Input Polarity Fault PolarityOverview System Calibration Fault Input Setup FaultSystem Calibration Calibrate Velocity Setting the System CalibrationSystem Calibration Encoder Lines System Calibration Index Number System Calibration Position Loop Gain System Calibration Adjustment Range Programmable Motion Controller Specifications Mounting Information Mounting Information