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National Instruments FP-Al-110 manual

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Table of contents for the manual

  • Page 1

    FieldPoint ™ Operating Instructions FP-AI-110 and cFP-AI-110 Eight-Channel, 16-Bit Analog Input M odules These operating instructions descri be ho w to install and use the FP-AI-110 and cFP-AI-110 analog input modules (referred to inclusiv ely as the [c]FP-A I-110). F or information about configuring and accessing the [c]F P- AI-110 ov er a netwo[...]

  • Page 2

    FP-AI-110 and cFP-AI-110 2 ni.com T o install the FP- AI-110, refer to Figure 1 and complete the follow ing steps: 1. Slide the terminal base key to either position X (used for an y module) or position 1 (used for the FP- AI-110). 2. Align the FP- AI-110 alignmen t sl ots with the guide rails on the terminal base. 3. Press firmly to seat the FP- AI[...]

  • Page 3

    © National Instruments Corp. 3 FP-AI-110 and cFP-AI-110 (10 lb ⋅ in.) of torque. The nylon coating on the screws pre vents them from loosening. Figure 2. Installing the cFP-AI-110 Wiring the [c]FP-AI-110 The FP-TB- x terminal base ha s connections for each of the eight input channels and for an external power su pply to power field de vice s. Th[...]

  • Page 4

    FP-AI-110 and cFP-AI-110 4 ni.com is 2 A or less and the maximum current through any V SUP terminal is 1 A or less . Install a 2 A maximum, fast-acting fuse between t he external power supply and the V terminal on each channel. The wiring diagrams in this document sho w fuses where appropriate. T able 1 lists the terminal assign ments for the signa[...]

  • Page 5

    © National Instruments Corp. 5 FP-AI-110 and cFP-AI-110 T aking Measurements with the [c]FP-AI-110 The [c]FP- AI-110 has eight single- ended input cha nnels. All eight channels share a common ground referen ce that is isolated from other modules in the FieldPoint system. Figure 3 shows the analog input circuitry on one channel. Figure 3. FP- AI-11[...]

  • Page 6

    FP-AI-110 and cFP-AI-110 6 ni.com Figure 5 sho ws how to connect a v oltage source with an extern al power supply to one channel of the [c]FP-AI-110. Figure 5. Voltage Source with Ex ternal Powe r Supply Measuring Current with the [c]FP-AI-110 The input ranges for current sources are 0 –20, 4 –20, and ± 20 mA. The module reads current flowing [...]

  • Page 7

    © National Instruments Corp. 7 FP-AI-110 and cFP-AI-110 Figure 6. Current Source without External Power Supply Figure 7 sho ws how to connect a cu rrent sour ce with an external power supply to one channel of the [c]FP-AI-110. Figure 7. Current Source with Ex ternal Power Supply Input Ranges T o prev ent inaccurate readings, c hoose an input range[...]

  • Page 8

    FP-AI-110 and cFP-AI-110 8 ni.com Overranging The [c]FP- AI-110 has an overranging feature that meas ures a little beyond the nominal values of each rang e. For example, the actual measurement limit of the ± 10 V range is ± 10.4 V . The overrang ing feature enables the [c]FP- AI-110 to compensate for field de vices with span errors of up to + 4% [...]

  • Page 9

    © National Instruments Corp. 9 FP-AI-110 and cFP-AI-110 sampling rate is faster than th e rate at which the network module polls the [c]FP-AI-110 for data. Status Indicators The [c]FP-AI-110 has tw o green status LEDs, POWER and READY . After you insert the [c] FP-AI-110 into a terminal base or backplane and apply po wer to th e connected network [...]

  • Page 10

    FP-AI-110 and cFP-AI-110 10 ni.com working v oltages of 250 V rms 1 . Safety standards (such as those published by UL and IEC) requir e the use of double insulation between hazardous voltages and an y human-accessi ble parts or circuits. Never try to use any isolation produ ct between human-accessible parts (such as DIN rails or monito ring station[...]

  • Page 11

    © National Instruments Corp. 11 FP-AI-110 and cFP-AI-110 • Operate the [c]FP-AI-110 only at or belo w Pollution Degree 2. Pollution Degree 2 means th at only nonconductiv e pollution occurs in most case s. Occasionally , howe ver , a temporary conductivity caused by conde nsation must be e xpected. • Operate the [c]FP-AI-110 at or below Measur[...]

  • Page 12

    FP-AI-110 and cFP-AI-110 12 ni.com Safety Guidelines for Hazardous V oltages If hazardous voltages are connected to the module, take the follow ing precautions. A hazardous voltage is a v oltage greater than 42.4 V peak or 60 VDC to earth ground. Caution Ensure that hazardous voltage wiring is performed only by qualified personnel adhering to local[...]

  • Page 13

    © National Instruments Corp. 13 FP-AI-110 and cFP-AI-110 Effecti ve resolution by inpu t signal range and f ilter setting Input charac teristics by f ilter setting Normal-mode rejection .. .............. ..... 95 dB (with 50/60 Hz filter) Nonlinearity .......... ........... ......... ........ 0.0015% (monotonicity 1 guaranteed ov er the operating [...]

  • Page 14

    FP-AI-110 and cFP-AI-110 14 ni.com Input current 25 °C........... ...................... .......... 400 pA typ, 1 nA max 70 °C ............. ........... ........... ........ 3 nA typ, 15 nA max Input noise (with 50 or 60 Hz filter enabled) ± 60 mV range ...... ........... ........... . ± 3 LSB 1 peak-to-peak ± 300 mV range ...... ........... .[...]

  • Page 15

    © National Instruments Corp. 15 FP-AI-110 and cFP-AI-110 Note Full scale is the maximum value of the nominal input range. F or example, for the ± 10 V input range, full scale is 10 V and ± 0.01% of full scale is 1 mV . Gain error drift ........... ......... ........... ... ± 20 ppm/°C Offset error drift W ith 50 or 60 Hz filte r enabled ......[...]

  • Page 16

    FP-AI-110 and cFP-AI-110 16 ni.com Physical Char acteristics Indicators ............ ........... ........... ........ Green POWER and READY indicators W eight FP-AI-110..... ............. .............. ... 140 g (4.8 oz) cFP-AI-110 ....... ............ .............. 110 g (3.7 oz) Power Requirements Power from network module ............ 350 mW S[...]

  • Page 17

    © National Instruments Corp. 17 FP-AI-110 and cFP-AI-110 Operating shock (IEC 60068-2-27)........... ........... ........ 50 g, 3 ms half sine, 18 shocks at 6 orientations; 30 g, 11 ms half sine, 18 shocks at 6 orientations Safety This product is designed to meet the requirements of the following standards of safety for electric al equipment for m[...]

  • Page 18

    FP-AI-110 and cFP-AI-110 18 ni.com CE Compliance This product meets the essentia l requirements of applicable European Directi ves, as amended for CE ma rking, as follows: Lo w-V oltage Directi ve (s afety). ..... ... 73/23/EEC Electromagnet ic Compatibility Directiv e (EMC) ... ........... ......... ........ 89/336/EEC Note Refer to the Declaratio[...]

  • Page 19

    © National Instruments Corp. 19 FP-AI-110 and cFP-AI-110 Where to Go for Support For more information about settin g up the FieldPoint system, refer to these National Instruments documents: • FieldPoint network module user manual • Other FieldPo int I/O m odule operating instructions • FieldPoint terminal base and connector block operating i[...]

  • Page 20

    © 2003–2005 Nati onal Instruments Corp. All rights reserved. 373280A-01 Jun05 National Instruments, NI, n i.com, and LabVIEW are trademarks of National I nstruments Corporation. Refer to the Terms of Use section on ni.com/legal for more information about National Instruments tra demarks. Other product and company names ment ioned herein are trad[...]