National Instruments FIELDPOINT cFP-DO-403 Operating Instructions Manual

Also see for FIELDPOINT FP-DO-403: Operating instructions

Contents

National Instruments FIELDPOINT cFP-DO-403 Operating Instructions Manual Manual pdf 7 page image

© National Instruments Corp. 7 [c]FP-DO-403mount the flyback diode within 18 in. of the load. Figure 5 showsa flyback diode connected to an inductive load.Figure 5. Connection to Inductive Load with Flyback DiodeAlthough the [c]FP-DO-403 contains flyback diodes to preventexcessively high voltage from damaging the module, NationalInstruments recommends the use of an external protection circuitacross any inductive load.Status IndicatorsThe [c]FP-DO-403 has two green status LEDs, POWER andREADY. After you insert the FP-DO-403 into a terminal baseor the cFP-DO-403 into a backplane and apply power to theconnected network module, the green POWER indicator lightsand the [c]FP-DO-403 informs the network module of its presence.When the network module recognizes the [c]FP-DO-403, it sendsinitial configuration information to the [c]FP-DO-403. After themodule receives this initial information, the green READYindicator lights and the [c]FP-DO-403 is in normal operatingmode.In addition to the green POWER and READY indicators, eachchannel has a numbered, green output state indicator, which lightswhen the channel is in the ON state.Isolation and Safety GuidelinesCaution Read the following information beforeattempting to connect the [c]FP-DO-403 to any circuitsthat may contain hazardous voltages.This section describes the isolation of the [c]FP-DO-403 and itscompliance with international safety standards. The field wiringconnections are isolated from the backplane and the inter-modulecommunication bus. The isolation barriers in the module provideFlyback DiodeVOUTLoadV or VSUP