National Instruments NI 9485 - Manuals

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...

© 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

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...

© 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...

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...

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...

© 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...

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 ...

© 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 ...

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...

© 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...

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...

© 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...

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) ...

© 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...