National Instruments nuDrive 4SX-411 User Manual

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National Instruments nuDrive 4SX-411 User Manual Manual pdf 17 page image

© National Instruments Corporation 17 nuDrive Accessory User GuideFigure 16 shows the location of the E-Stop terminal block (and E-Stopconfiguration jumper) on the interface board.Figure 16. E-Stop LocationIf you enable the E-Stop option, you must apply a 115 VAC signal to pins1 and 3 in addition to the normal nuDrive enable (ENABLE switch or I/Oconnector enable input, if applicable) for the nuDrive’s amplifiers/driversto be enabled (not inhibited). If you disconnect the 115 VAC with theE-Stop option selected, the amplifiers/drivers are immediately disabled(inhibited) regardless of the status of the ENABLE switch or enable input.Refer to Figure 17 for more information on the E-Stop terminal block pinassignment.Figure 17. E-Stop Terminal Block Pin AssignmentNote The front panel ENABLE switch will remain illuminated even when the 115 VACsignal is removed from the E-Stop connector, disabling the axes.Servo Amplifier ConfigurationsThe servo nuDrive uses high-efficiency PWM amplifiers configured astorque blocks (current amplifiers or transconductance amplifiers). Thecurrent gain is given in amps/volt and defines the relationship of the inputcommand voltage to the current output. The peak current limit is themaximum current that your motor can withstand for short periods of time.The continuous current limit is the maximum current that your motor canwithstand indefinitely.1 E-Stop 2 JP112123115 VAC (Line)115 VAC (Neutral)NC