Related Manuals for National Instruments NI 6521
Summary of Contents for National Instruments NI 6521
- Page 1 (217) 352-9330 | Click HERE Find the National Instruments PCI-6521 at our website:...
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Page 2: Table Of Contents
The relay’s maximum switching power is 60 W/60 VA. The maximum switching voltage for the NI 6520 is 30 Vrms/42.4 V 60 VDC. The maximum switching voltage for the NI 6521 is 150 VDC/VAC. The NI 6520/6521 uses positive logic. A digital high energizes the relay, and a digital low deenergizes it. -
Page 3: Configuration
Isolation Circuitry................17 Input Isolation Circuitry ............17 Output Isolation Circuitry ............17 Isolation Voltages................17 NI 6520 Isolation Voltages ............17 NI 6521 Isolation Voltages ............18 Protecting Inductive Loads...............18 Cables and Accessories ................20 NI 6520 Accessory Options..............20 PCI-6521 Accessory Options ............21 PXI-6521 Accessory Options ............21 Specifications...................22... -
Page 4: Functional Overview
The NI 6521 is designed to meet the requirements of UL/IEC 61010-1 and is UL listed. Refer to the driver software documentation for configuration instructions. After the NI 6520/6521 device and the driver software are installed, the DAQ device appears under the Devices and Interfaces branch of the MAX configuration tree. -
Page 5: Safety Information
DIO device if it is damaged in any way. If the DIO device is damaged, return it to National Instruments for repair. Do not substitute parts or modify the DIO device except as described in this document. - Page 6 MAINS is defined as a hazardous live electrical supply system that powers equipment. Suitably rated measuring circuits may be connected to the MAINS for measuring purposes. © National Instruments Corporation NI 6520/6521 User Guide Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 7: Related Documentation
NI-DAQ software, the DAQ device, and how to confirm that the device is operating properly. • NI-DAQmx Help—This help file contains information about using NI-DAQmx to program National Instruments devices. NI-DAQmx is the software you use to communicate with and control NI DAQ devices. •... -
Page 8: Digital Filtering Example
External Signal Filter Clock Sample Clock (100 ns) External Signal Sampled Filtered Signal Figure 2. Digital Filtering Example © National Instruments Corporation NI 6520/6521 User Guide Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com... -
Page 9: Programmable Power-Up States
To use MAX (recommended) to program the power-up states, select the device and click the Properties button. Refer to the software documentation for information about how to program the power-up states using NI-DAQ with LabVIEW or other National Instruments application development environments (ADEs). Note The response time of programmable power-up states is 400 ms. -
Page 10: Change Detection
Bit 1 is connected to a limit sensor. The DIO device detects rising edges on the sensor, which correspond to over-limit conditions. © National Instruments Corporation NI 6520/6521 User Guide Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com... -
Page 11: Watchdog Timer
The 37-pin D-SUB connector on the NI 6520/6521 provides access to eight isolated digital inputs and 8 relay outputs. For easy connection to the digital I/O connector, use the National Instruments 37-pin D-SUB accessories. For a list of compatible 37-pin accessories, refer to the Cables and Accessories section. -
Page 12: Pin Assignments
Input Signal Connection Example section for more information on input connection. For information on safely connecting to the NI 6521, refer to the 37-Pin High-Voltage Accessory Safety Kit Installation Guide shipped with your device, and also available on ni.com/manuals... -
Page 13: Signal Descriptions
P1.0NO P1.1NO P1.0COM P1.1COM P1.0NC P1.1NC P1.2NO P1.3NO P1.2COM P1.3COM P1.2NC P1.5NO P1.4NO P1.5COM P1.4COM P1.7NO P1.6NO P1.7COM P1.6COM NO CONNECT NO CONNECT P0.1+ P0.0+ P0.1– P0.0– P0.3+ P0.2+ P0.3– P0.2– P0.5+ P0.4+ P0.5– P0.4– P0.7+ P0.6+ P0.7– P0.6– Figure 5. NI 6520/6521 Pin Assignments For more information on signals on the NI 6520/6521, refer to the Signal Descriptions section. -
Page 14: Optically Isolated Differential Inputs
Exceeding 30 V differential voltage could cause damage to the photocouplers. The 30 V differential voltage can have up to ±120 V (NI 6521 Only) common-mode voltage compared to chassis/digital ground of the NI 6521 device. © National Instruments Corporation NI 6520/6521 User Guide... -
Page 15: Input Signal Connection Example
0 V~ –30 V P0.X – AC Input Photocoupler Up to 120 V Common Common-Mode Mode Voltage Figure 7. NI 6521 Input Signal Connection Example NI 6520/6521 User Guide ni.com Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com... -
Page 16: Mechanical Relays
60 W or 60 VA, with a maximum current of 2 A for all channels from 0 to 55 °C, external PC ambient. © National Instruments Corporation NI 6520/6521 User Guide Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com... -
Page 17: Power-On And Power-Off Conditions
(NI PXI-6521 Only) The maximum power rating for the NI PXI-6521 relays is 60 W or 60 VA, with a maximum current of 2 A for all channels from 0 to 55 °C, external PXI chassis ambient. (NI PCI-6521 Only) The maximum power rating for the NI PCI-6521 relays is 60 W or 60 VA. -
Page 18: Power Connections
Caution Do not exceed the isolation voltage limits. Exceeding the voltage limits may cause injury or permanently damage the NI 6520 components. National Instruments is not liable for any damage resulting from signal connections that exceed these limits. © National Instruments Corporation NI 6520/6521 User Guide Artisan Technology Group - Quality Instrumentation ... -
Page 19: Ni 6521 Isolation Voltages
Ensure that external wiring or any circuits connected to the device are properly insulated from human contact. The NI 6521 must be used with special keyed cables and accessories. Refer to the 37-Pin High-Voltage Accessory Safety Kit Installation Guide shipped with your device and the NI 6520 Accessory Options section for more information. - Page 20 Figure 12. Contact Protection for DC Inductive Loads NI 6520/6521 CHAN Inductive Load Figure 13. Contact Protection for AC Inductive Loads © National Instruments Corporation NI 6520/6521 User Guide Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 21: Cables And Accessories
TB-37F-37SC 37-Pin Solder Cup Terminals, Shell with Strain Relief—part number 779184-01 For more information about optional equipment available from National Instruments, refer to the National Instruments catalog or visit the National Instruments Web site at ni.com NI 6520/6521 User Guide ni.com... -
Page 22: Pci-6521 Accessory Options
PCI-6521 Accessory Options Caution The NI 6521 must be used with special keyed cables and accessories. Refer to the 37-Pin High-Voltage Accessory Safety Kit Installation Guide shipped with your device for more information about keying for safety. • 37-Pin High-Voltage Accessory Safety Kit—part number 779445-01 And the following: –... -
Page 23: Specifications
Refer to the NI 6520 Specifications, available at , for ni.com/manuals more detailed information about the NI 6520 device. Refer to the NI 6521 Specifications, shipped with your device and available at ni.com/ , for more detailed information about the NI 6521 device. - Page 24 Instruments trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your CD, or ni.com/patents.
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