Page 2 - and enter the info code; Note; The safety guidelines and specifications in this; Safety Guidelines; Hot Surface; This icon denotes that the component may be
NI 9485 Operating Instructions 2 ni.com These operating instructions describe how to use the National Instruments 9485. For information about installing, configuring, and programming the system, refer to the system documentation. Visit ni.com/info and enter the info code rdsoftwareversion to determi...
Page 3 - Safety Guidelines for Hazardous Voltages; hazardous voltages; Caution; Caution; not
© National Instruments Corp. 3 NI 9485 Operating Instructions Safety Guidelines for Hazardous Voltages If hazardous voltages are connected to the module, take the following precautions. A hazardous voltage is a voltage greater than 42.4 V pk or 60 VDC to earth ground. Caution Ensure that hazardous v...
Page 4 - Figure 1 shows the NI 9939 connector backshell.; Safety Guidelines for Hazardous Locations
NI 9485 Operating Instructions 4 ni.com Figure 1 shows the NI 9939 connector backshell. Figure 1. NI 9939 Connector Backshell Safety Guidelines for Hazardous Locations The NI 9485 is suitable for use in Class I, Division 2, Groups A, B, C, D, T4 hazardous locations; Class I, Zone 2, AEx nA II T4 and...
Page 6 - Special Conditions for Hazardous Locations Use in Europe; II 3G and is suitable for use in
NI 9485 Operating Instructions 6 ni.com Special Conditions for Hazardous Locations Use in Europe This equipment has been evaluated as EEx nA II T4 equipment under DEMKO Certificate No. 03 ATEX 0324020X. The equipment is marked II 3G and is suitable for use in Zone 2 hazardous locations. Wiring the N...
Page 7 - Module
© National Instruments Corp. 7 NI 9485 Operating Instructions Table 1. Terminal Assignments Module Terminal Signal 0 CH0a 1 CH0b 2 CH1a 3 CH1b 4 CH2a 5 CH2b 6 CH3a 7 CH3b 8 CH4a 9 CH4b 10 CH5a 11 CH5b 12 CH6a 13 CH6b 14 CH7a 15 CH7b 0123456789 101112131415
Page 8 - Wiring for High-Vibration Applications
NI 9485 Operating Instructions 8 ni.com Wiring for High-Vibration Applications If an application is subject to high vibration, National Instruments recommends that you either use ferrules to terminate wires to the detachable screw-terminal connector or use the NI 9939 backshell kit to protect the co...
Page 9 - Connecting Loads to the NI 9485; Load
© National Instruments Corp. 9 NI 9485 Operating Instructions Connecting Loads to the NI 9485 You can connect loads to the NI 9485. Connect the load to one of the leads of the power source. Connect either the CHa or the CHb terminal to the load and the other terminal to the other lead of the AC or D...
Page 10 - Protecting Inductive Loads; For DC loads—Install a flyback diode within 18 in. of the load.
NI 9485 Operating Instructions 10 ni.com When you write an ON command to a channel, the SSR is closed and the terminal that is connected to the load allows current to flow or allows voltage to be applied to the load. When you write an OFF command to a channel, the switch opens, disconnecting the cir...
Page 12 - Sleep Mode
NI 9485 Operating Instructions 12 ni.com Figure 5. Contact Protection for AC Inductive Loads Sleep Mode This module supports a low-power sleep mode. Support for sleep mode at the system level depends on the chassis that the module is plugged into. Refer to the chassis documentation for information a...
Page 13 - Specifications; Output Characteristics; max
© National Instruments Corp. 13 NI 9485 Operating Instructions Typically, when a system is in sleep mode, you cannot communicate with the modules. In sleep mode, the SSRs open to prevent current from flowing through the load. Consequently, the system consumes minimal power and may dissipate less hea...
Page 14 - Switching current, per channel; Contact NI for Bellcore MTBF specifications
NI 9485 Operating Instructions 14 ni.com Switching current, per channel 1 All channels ................................ 0.75 A maxUp to four channels .................... 1.2 A max Switching rate (90% duty cycle) 1 ..... 1 operation per second Relay open time ................................ 0.5 ms ...
Page 15 - Power Requirements; Power consumption from chassis; Physical Characteristics; If you need to clean the module, wipe it with a dry towel.
© National Instruments Corp. 15 NI 9485 Operating Instructions Power Requirements Power consumption from chassis Active mode ............................... 500 mW maxSleep mode ................................. 5 mW max Thermal dissipation (at 70 °C) Active mode ............................... 1.5 ...
Page 16 - Safety; Safety Voltages
NI 9485 Operating Instructions 16 ni.com Safety Safety Voltages Connect only voltages that are within these limits. Channel a-to-Channel b .................... 60 VDC max, 30 V rms max Isolation Channel-to-channel Continuous ........................... 60 VDCWithstand ............................. 1...
Page 17 - Safety Standards; For UL and other safety certifications, refer to the; Hazardous Locations
© National Instruments Corp. 17 NI 9485 Operating Instructions Safety Standards The NI 9485 is designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use: • IEC 61010-1, EN-61010-1 • UL 61010-1, CSA 61010-1 Note For UL...
Page 18 - Environmental; noncondensing
NI 9485 Operating Instructions 18 ni.com Environmental National Instruments C Series modules are intended for indoor use only but may be used outdoors if installed in a suitable enclosure. Refer to the installation instructions for the chassis you are using for more information about meeting these s...
Page 19 - Shock and Vibration; Operating vibration; Electromagnetic Compatibility; EN 61326 EMC requirements Industrial Immunity
© National Instruments Corp. 19 NI 9485 Operating Instructions Shock and Vibration To meet these specifications, you must panel mount the system and either use ferrules to terminate wires to the detachable screw-terminal connector or use the NI 9939 backshell kit to protect the connections. Operatin...
Page 20 - CE Compliance; Waste Electrical and Electronic Equipment (WEEE); EU Customers; must
NI 9485 Operating Instructions 20 ni.com Note For EMC compliance, operate this device according to product documentation. CE Compliance This product meets the essential requirements of applicable European Directives, as amended for CE marking, as follows: • 73/23/EEC; Low-Voltage Directive (safety) ...
Page 21 - National Instruments Contact Information; you have access to
© National Instruments Corp. 21 NI 9485 Operating Instructions National Instruments Contact Information The National Instruments Web site is your complete resource for technical support. At ni.com/support you have access to everything from troubleshooting and application development self-help resour...