VXI VT1538A guide

Figure 29. Directly Driving 4-Phase Stepper Motors

40 Agilent E1538A Enhanced Frequency/Totalize/PWM SCP

Image 44

VXI VT1538A user manual

Contents

VT1538A VXI Technology, Inc Introduction Support Resources User’s and Scpi Programming Manual Page Agilent E1538A Enhanced Frequency/Totalize/PWM SCP About this Manual Introduction Identifying the Plug-on Important Setting Configuration Switches Switch Location and Example Settings Installation Connecting To The Terminal Module Recommended Signal Connections E1419A Option 11 Terminal Module Connections Input and Output Characteristics Recommended Connections and Voltage Limits VRS Mode Input Operation SCP Channels 0 & 1 only E1538A Input/Output Characteristics Programming With Scpi Commands Shows the VRS mode input characteristics Configuring I/O Direction Setting the Input Threshold Level Determining the Input Threshold Level Inppol Norm Reading Static Digital State To set channels 40 through 43 to input digital states Totalize Positive or Negative Edge State Changes Init SENSDATACVT? @44 About Period Frequency Measurements SENSDATACVT? @45 SENSDATACVT? @45 Agilent E1538A Enhanced Frequency/Totalize/PWM SCP Agilent E1538A Enhanced Frequency/Totalize/PWM SCP Sense Quadrature Position Sensfuncquad 0,@148,149 RPS Example of Rotational Velocity Sense Sense Rotational Velocity Controlling Output Polarity Output Static Digital State Variable Width Pulse Per Trigger Variable Width Pulse Train PWM Variable Frequency Fixed Width Pulse Train FM Variable Frequency Square-Wave Pulse Train Rotationally Positioned Pulse Output Rotational Pulse Command Usage Algupdate Init Example of variable position, preset width RST Sensfuncrvel 12,MISS,@140 Variable Position, Width Preset by Time Example of variable width by angle, preset position Example of variable width by time, preset position Fixed Position, Variable Width by Angle ALGSCALAR’ALG1’,’Width2’,.010 Stepper Motor Control Use the command Stepping mode values Sensfuncvolt @100 Full Step Mode, Full and Half Speed, 4-Channel Page RST and *TST important Scpi Command Reference Command Syntax For newer Units only Command Syntax For newer Units only Discussed INPutPOLarity INPutPOLarity?Parameters Comments INPutTHResholdLEVel? Level can be set to a resolutionINPutTHResholdLEVel Send with VXIplug&play Function hpe14XXcmdReal64Q OUTPutPOLarityOUTPutPOLarity? SENSeFREQuencyAPERture SENSeFREQuencyLIMitLOWer Related Commands SensfreqaperSENSeFREQuencyAPERture? Init SENSeFUNCtionCONDition Related Commands INPutPOLaritySENSeFREQuencyLIMitLOWer? SENSeFUNCtionFREQuency SENSeFUNCtionPERiod SENSeFUNCtionPWIDth SENSeFUNCtionQUADrature SENSeFUNCtionRVELocity RPS SENSeFUNCtionTOTalize SENSePERiodAPERture SENSePERiodAPERture? SENSePERiodLIMitUPPer Init SENSePERiodLIMitUPPer? SENSePERiodMODE SENSePERiodNPERiods Related Commands SENSePERiodMODESENSePERiodMODE? Send with VXIplug&play Function hpe14XXcmdInt32Q SENSePERiodNPERiods?SENSePERiodRANGeUPPer RST Condition is Send with VXIplug&play Function hpe14XXcmd SENSeTOTalizeRESetMODESENSePERiodRANGeUPPer? SENSeTOTalizeRESetMODE? SOURceFMSTATe SOURceFMSTATe? Send with VXIplug&play Function hpe14XXcmdInt16Q SOURceFUNCtionRPULse SOURceFUNCtionSHAPeCONDition SOURceFUNCtionSHAPePULSe Comments Send with VXIplug&play Function hpe14XXcmd SOURceFUNCtionSHAPeSQUareSOURceFUNCtionSTEPper Relationship of minvel, and maxvel SOURcePULMSTATe Usage See Stepper Motor Control on SOURcePULMSTATe? SOURcePULSePERiod SOURcePULSePERiod? SOURcePULSeWIDTh 33,554,430 to 33,554,430 SOURcePULSeWIDTh?SOURceRPULsePOSitionANGLe Usage SOURceRPULsePOSitionANGLe?SOURRPULseVARType SOURRPULseVARType? SOURceRPULseWIDThANGLe 00000787 to SOURceRPULseWIDThANGLe?SOURceRPULseWIDThTIME SOURceRPULseWIDThTIME? Specifications General Specifications Frequency Measurement Pulse Width Measure Rotational Pulse Source