National Instruments NI 9481 User Manual Download

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OPERATING INSTRUCTIONS AND SPECIFICATIONS

NI 9481

4-Channel SPST Electromechanical Relay Module

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Summary of Contents for NI 9481

Page 1: ...OPERATING INSTRUCTIONS AND SPECIFICATIONS NI 9481 4 Channel SPST Electromechanical Relay Module ni com manuals Deutsch Fran ais...

Page 2: ...ng and programming the system refer to the system documentation Visit ni com info and enter cseriesdoc for information about C Series documentation Note The safety guidelines and specifications in thi...

Page 3: ...dous Voltages If hazardous voltages are connected to the module take the following precautions A hazardous voltage is a voltage greater than 42 4 Vpk or 60 VDC to earth ground Caution Ensure that haza...

Page 4: ...LIVE 42 4 Vpk 60 VDC you must ensure that devices and circuits connected to the module are properly insulated from human contact You must use the NI 9932 connector backshell kit to ensure that the te...

Page 5: ...in a potentially explosive environment Not following these guidelines may result in serious injury or death Caution Do not disconnect I O side wires or connectors unless power has been switched off or...

Page 6: ...he LR certificate or look for the Lloyd s Register mark on the module Caution To meet radio frequency emission requirements for marine applications use shielded cables and install the system in a meta...

Page 7: ...ications Connecting the NI 9481 The NI 9481 has a 10 terminal detachable screw terminal connector that provides connections for 4 electromechanical relay channels Figure 2 NI 9481 Terminal Assignments...

Page 8: ...LEDs are disabled when the chassis is in sleep mode Refer to the Sleep Mode section for more information about sleep mode When connecting a load to the NI 9481 connect the positive lead of the load t...

Page 9: ...oltage to the load When the channel is off the terminal does not drive current or apply voltage to the load Wiring for High Vibration Applications If an application is subject to high vibration Nation...

Page 10: ...r sleep mode Support for sleep mode at the system level depends on the chassis that the module is plugged into Refer to the chassis manual for information about support for sleep mode If the chassis s...

Page 11: ...may dissipate less heat than it does in normal mode Refer to the Specifications section for more information about power consumption and thermal dissipation Specifications The following specifications...

Page 12: ...1 A max at 60 VDC 4 A max at 250 Vrms All channels on 2 A max at 30 VDC 1 A max at 60 VDC 2 A max at 250 Vrms Resistance per channel channel on 50 m Switching rate 1 operation per second Relay release...

Page 13: ...sue 2 Method 1 Case 3 Limited Part Stress Method Note Contact NI for Bellcore MTBF specifications at other temperatures or for MIL HDBK 217F specifications Power Requirements Power consumption from ch...

Page 14: ...from the end Torque for screw terminals 0 5 to 0 6 N m 4 4 to 5 3 lb in Ferrules 0 25 mm2 to 2 5 mm2 Weight 150 g 5 3 oz Safety Safety Voltages Connect only voltages that are within the following limi...

Page 15: ...9481 to signals or use for measurements within Measurement Categories III or IV Isolation Channel to channel Continuous 250 Vrms Withstand 1 400 Vrms verified by a 5 s dielectric withstand test Channe...

Page 16: ...UL and other safety certifications refer to the product label or the Online Product Certification section Electromagnetic Compatibility This product meets the requirements of the following EMC standar...

Page 17: ...eets the essential requirements of applicable European Directives as follows 2006 95 EC Low Voltage Directive safety 2004 108 EC Electromagnetic Compatibility Directive EMC Online Product Certificatio...

Page 18: ...n sinusoidal IEC 60068 2 6 5 g 40 to 500 Hz 0 062 in double amplitude 10 to 40 Hz Environmental National Instruments C Series modules are intended for indoor use only but may be used outdoors if insta...

Page 19: ...itted to designing and manufacturing products in an environmentally responsible manner NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment an...

Page 20: ...cle all products must be sent to a WEEE recycling center For more information about WEEE recycling centers and National Instruments WEEE initiatives visit ni com environment weee RoHS National Instrum...

Page 21: ...504 National Instruments also has offices located around the world to help address your support needs For telephone support in the United States create your service request at ni com support and follo...

Page 22: ...3 466 New Zealand 0800 553 322 Norway 47 0 66 90 76 60 Poland 48 22 3390150 Portugal 351 210 311 210 Russia 7 495 783 6851 Singapore 1800 226 5886 Slovenia 386 3 425 42 00 South Africa 27 0 11 805 819...

Page 23: ...n ni com legal for more information about National Instruments trademarks Other product and company names mentioned herein are trademarks or trade names of their respective companies For patents cover...

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