Emerson 400276-01 Shield, Command + and Command Output, Command Output Polarity, Signal Path

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Installation

Shield

Two shield terminals are provided as a connection point for cable shields. These two terminals are connected internally to the input power ground terminal on the unit. Shields should be connected on one end only, preferably at the 525 PMC.

Command (+) and Command (-) Output

Command (+) and Command (-) is the analog output signal from the 525 PMC to the external drive's velocity command input. This signal can be scalable from +/-5 volts = maximum velocity to +/-12 volts = maximum velocity at a minimum load impedance of 4.7K. The Command (-) signal has a ground reference to the input power ground of the 525 PMC.

NOTE: It is important that the control ground on the amplifier is connected to the input power ground on the 525 PMC.

Command Output Polarity

A positive voltage out of the command output must cause a clockwise rotation of the motor shaft as viewed from the shaft end. The encoder should turn clockwise as viewed from the shaft. This will ensure a positive count within the 525 PMC.

Signal Path

The command (-) output is internally connected to ground within the 525 PMC. Consequently, the (-) input to the external drive must have a ground reference. The figures below show the two most typical connections to an external drive.

Figure 12 Single Ended Input Configuration

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Contents Programmable Motion Controller Installation Programmable Motion Controller Programmable Motion Controller Disclaimer Product Overview IntroductionExternal Drive Interface Command SignalsOperating Modes Indexing ModePulse Mode Analog ModeProgrammable 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 +5VDC supply Signal DiscriptionsEncoder input signals External Drive Connections To The 525 PMCShield Command + and Command OutputCommand Output Polarity Signal PathFeedback 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 B Multi-Drop ConfigurationSerial Interface Serial aMulti-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