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Universal, Remote Sense Analog Output Boards

Universal, Remote Sense Analog Output Boards
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Universal, Remote Sense Analog Output Boards - 1

Universal, Remote Sense Analog Output Boards 20mA output current without power supply Remote sensing Automatic fault-circuit detection 32 high-current digital I/O lines plus a suite of bundled software including ExceLINX", LabVIEW® drivers • Machine automation • Product testing • Servo control • Gas flow, heater control • Programmable voltage sources • Simulation testing Keithley's KPCI-3130 Series of Universal Analog Output Source Boards are designed specifically for applications where robust analog output and industrial digital I/O control are required. Whether the application is on the factory floor or in the lab, the KPCI-3130 Series offers precision signal sourcing performance and unmatched quality at an economical price. Both boards lower the cost of automation and meet the needs of large ATE (automated test equipment) and machine automation applications. The KPCI-3130 Series is a family of two value-priced analog output boards for the PCI-bus: the KPCI-3130 and -3132. These boards are ideal for appli- cations requiring multiple analog outputs and control capabilities. Typical applications include semiconductor machine control, product testing, simu- lation testing, and servo control. The KPCI-3130 provides eight channels of industrial grade analog output channels along with 32 high current digital I/O channels designed for controlling solenoids, valves, actuators, or solid state relays. The KPCI-3132 offers two channels of wide resolution analog output that can be used for driving chart recorders, programming power supplies, motor control, or applications where a precise voltage is needed. tion requires that a 3130 Series can be configured to source or sink up to 20mA without an external excitation source. Functional Description The KPCI-3130 Series of Universal Analog Output Source boards provides a wide resolu- tion using a single ±10V range. With a universal resolution of 19/xV, glitching problems normally encountered when switching to different ranges on conventional multi-range analog output boards are eliminated with a single range. This allows you to concentrate on the application without worrying about the complications range change glitches cause. Most conventional PC-based analog output boards only provide you with a two-wire con- nection as shown in Figure 1. For most applica- tions, this is more than adequate and will meet your application needs. However, when you are required to run a cable over a long distance between the source of the analog output and the point where the analog output voltage must be applied, significant voltage drops can occur as the result of cable resistances, device intercon- nections, and terminations; therefore, the pro- grammed output value may not be the voltage delivered at the point where the voltage is being applied (such as at the DUT [Device Under Test], the device being controlled, etc.). To correct the problem of voltage drops across long lead lengths, the KPCI-3130 Series allows you to connect the outputs in a four-wire remote sensing mode, similar to what is used on conven- tional power supplies. The 4-wire remote sense Figure 1 : Conventional 2-Wire Analog Output Connections Figure 2: Analog Output With 4-Wire Remote Sense Figure 3: Constant Current Configuration GREATER MEASURE OF CONFIDENCE

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Precision signal sourcing KPCI-3130 8-Channel Analog Output and Digital I/O, PCI-Bus Board KPCI-3132 2-Channel Analog Output, PCI-bus Board BENEFITS • Glitch-free operations • Elimination of lead line losses o peration provides the ability to connect sense leads directly to the DUT. These sense high and low connections permit the card to measure (sense) the actual voltage present at the DUT. The analog output will then be automatically adjusted, transparent to the user, to ensure that the required voltage is supplied regardless of cable length and interconnection losses. A typical...

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Universal, Remote Sense Analog Output Boards - 3

KPCI-3130 Universal, Remote Sense KPCI-3132 Analog Output Boards ANALOG OUTPUTS RANGE: ±10Vfor each channel. ACCURACY: ±700/xV ± 0.008% setting (Vdc), at 25°C ±1°C. To maintain this accu- racy, all unused channel sense lines must be terminated (Sense HI to Output and TEMPERATURE COEFFICIENT: 150iiV/oC; ±20ppm setting/°C. Calibration at the operating temperature can remove this error. OUTPUT CURRENT: 20mA per channel, four quadrant (shunt required if current SETTLING TIME: 15ms to 600iiV (typ) (for transients between ±9.5V). DIFFERENTIAL REMOTE SENSE: Differential remote sense eliminates...

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