FieldPoint™ Operating Instructions FP-DI-330 and cFP-DI-330 Eight-Channel Universal Digital Input Module These operating instructions describe how to install and use the National Instruments FP-DI-330 and cFP-DI-330 digital input modules (referred to inclusively as the [c]FP-DI-330). For information about configuring and accessing the [c]FP-DI-330 over a network, refer to the user manual for the FieldPoint network module you are using. Features The [c]FP-DI-330 is a FieldPoint digital input module with the following features: • Eight digital input channels • Universal inputs that work with any voltage from 5 V TTL level up to 250 VDC/VAC • Compatibility with sourcing, sinking, or power-sensing applications • On/Off LED indicators • 250 Vrms CAT II continuous channel-to-ground isolation, verified by 2,300 Vrms, 1 minute dielectric withstand test • –40 to 70 °C operation • Hot swappable Installing the FP-DI-330 The FP-DI-330 mounts on a FieldPoint terminal base (FP-TB-x), which provides operating power to the module. Installing the FP-DI-330 onto a powered terminal base does not disrupt the operation of the bank. To install the FP-DI-330, refer to Figure 1 and complete the following steps: 1. Slide the terminal base key to position X. 2. Align the FP-DI-330 alignment slots with the guide rails on the terminal base. 3. Press firmly to seat the FP-DI-330 on the terminal base. When the module is firmly seated, the terminal base latch locks it into place. 4 5 3 6 1 2 1 I/O Module 2 Terminal Base 3 Alignment Slot 4 Key 5 Latch 6 Guide Rails Figure 1. Installing the FP-DI-330 Installing the cFP-DI-330 The cFP-DI-330 mounts on a Compact FieldPoint backplane (cFP-BP-x), which provides operating power to the module. Installing the cFP-DI-330 onto a powered backplane does not disrupt the operation of the bank. To install the cFP-DI-330, refer to Figure 2 and complete the following steps: 1. Align the captive screws on the cFP-DI-330 with the holes on the backplane. The alignment keys on the cFP-DI-330 prevent backward insertion. 2. Press firmly to seat the cFP-DI-330 on the backplane. 3. Using a number 2 Phillips screwdriver with a shank of at least 64 mm (2.5 in.) length, tighten the captive screws to 1.1 N ⋅ m FP-DI-330 and cFP-DI-330 2 ni.com (10 lb ⋅ in.) of torque. The nylon coating on the screws prevents them from loosening. 4 3 5 2 4 2 1 1 cFP I/O Module 2 Captive Screws 3 cFP Controller Module 4 Screw Holes 5 cFP Backplane Figure 2. Installing the cFP-DI-330 Wiring the [c]FP-DI-330 The FP-TB-x terminal base has connections for each FP-DI-330 input channel and for an external supply to power field devices. The cFP-CB-x connector block provides the same connections for the cFP-DI-330. You can wire each channel to a switch, a sourcing-output device, a sinking-output device, or a load. Each channel has two input terminals, INa and INb; a supply terminal, VSUP; and a common terminal, COM. All eight COM terminals are internally connected to each other and to the C terminals. All eight VSUP terminals are internally connected to each other and to the V terminals. © National Instruments Corp. 3 FP-DI-330 and cFP-DI-330 You can use a 5–250 VDC external power supply to power field devices. Connect the positive lead of the external power supply to both V terminals and the negative lead to both C terminals. Ensure that the current through both V terminals can never exceed 2 A. Install 2 A maximum, fast-acting fuses between the external power supply and the V terminals. The wiring diagrams in this document show fuses where appropriate. Table 1 lists the terminal assignments for the signals associated with each channel. The terminal assignments are the same for the FP-TB-x terminal bases and the cFP-CB-x connector blocks. Table 1. Terminal Assignments Terminal Numbers Channel INa INb VSUP COM 0 1 2 17 18 1 3 4 19 20 2 5 6 21 22 3 7 8 23 24 4 9 10 25 26 5 11 12 27 28 6 13 14 29 30 7 15 16 31 32 If you are using the cFP-DI-330 in a hazardous voltage application, you must use the cFP-CB-1 connector block or a suitable hazardous voltage cable. A hazardous voltage is a voltage greater than 42.4 Vpeak or 60 VDC. Ensure that hazardous voltage wiring is performed only by qualified personnel adhering to local electrical standards. Caution Do not mix circuits with hazardous voltages and human-accessible circuits on the same module. Caution Cascading power between two modules defeats isolation between those modules. Cascading power from the network module defeats all isolation between modules in the FieldPoint bank. Caution FP-DI-330 and cFP-DI-330 4 ni.com Connecting Devices to the [c]FP-DI-330 Figure 3 shows how to connect several types of devices to channels of the [c]FP-DI-330. Devices connected to VSUP and COM share a common potential. + 2A Max V + VSUP – SinkingOutput Device (NPN) – 5–250 V External Power Supply C INa (Ch 1) Input Circuitry INb (Ch 1) COM + VSUP – SourcingOutput Device (PNP) INa (Ch 2) Input Circuitry INb (Ch 2) COM VSUP SinkingOutput Device (NPN) INa (Ch 3) Input Circuitry INb (Ch 3) COM VSUP SourcingOutput Device (PNP) INa (Ch 4) Input Circuitry INb (Ch 4) COM VSUP INa (Ch n) Switch Input Circuitry INb (Ch n) COM To Next Channel [c]FP-DI-330 Figure 3. Connecting Devices to the [c]FP-DI-330 © National Instruments Corp. 5 FP-DI-330 and cFP-DI-330 Connecting a Switch to the [c]FP-DI-330 You can connect limit or control switches to the [c]FP-DI-330. Connect a power supply to the V and C terminals of the [c]FP-DI-330. Connect the INa and the VSUP terminals to the switch. + 5–250 V External – Power Supply 2A Max V VSUP C INa Switch INb Input Circuitry COM [c]FP-DI-330 Figure 4. Wiring the [c]FP-DI-330 to a Switch Connecting a Sourcing-Output Device to the [c]FP-DI-330 To connect a sourcing-output device to the [c]FP-DI-330, connect a power supply to the V and C terminals of the [c]FP-DI-330. Connect the VSUP, INa, INb, and COM terminals to the sourcing-output device. + 2A Max V VSUP SourcingOutput Device (PNP) – 5–250 V External Power Supply C INa INb Input Circuitry COM [c]FP-DI-330 Figure 5. Wiring the [c]FP-DI-330 to a Sourcing-Output Device FP-DI-330 and cFP-DI-330 6 ni.com If the sourcing-output device is connected to a power supply, connect the power supply to the INb terminal of the [c]FP-DI-330. V + VSUP – C INa SourcingOutput Device (PNP) Input Circuitry INb COM [c]FP-DI-330 Figure 6. Wiring the [c]FP-DI-330 to an Externally Powered Sourcing-Output Device Connecting a Sinking-Output Device to the [c]FP-DI-330 To connect a sinking-output device to the [c]FP-DI-330, connect a power supply to the V and C terminals of the [c]FP-DI-330. Connect the VSUP, INa, INb, and COM terminals to the sinking-output device. + 2A Max V VSUP SinkingOutput Device (NPN) – 5–250 V External Power Supply C INa INb Input Circuitry COM [c]FP-DI-330 Figure 7. Wiring the [c]FP-DI-330 to a Sinking-Output Device © National Instruments Corp. 7 FP-DI-330 and cFP-DI-330 If the sinking-output device is connected to a power supply, connect the power supply to the INa terminal of the [c]FP-DI-330. V VSUP INa + SinkingOutput Device (NPN) – C INb Input Circuitry COM [c]FP-DI-330 Figure 8. Wiring the [c]FP-DI-330 to an Externally Powered Sinking-Output Device Connecting a Load to the [c]FP-DI-330 If you want to use the [c]FP-DI-330 to sense the power that is applied to a load, connect the INa and INb terminals to the load. V VSUP C INa + – Load Input Circuitry INb COM [c]FP-DI-330 Figure 9. Wiring the [c]FP-DI-330 to a Load Universal Input Circuit The [c]FP-DI-330 has eight current-limited universal input channels with bi-directional optical isolators. Each channel has two interchangeable signal inputs, INa and INb. When you apply a voltage across the INa and INb terminals, signal current flows through the input circuitry and turns on the optical isolator, registering as an ON condition. The current-limiting circuitry limits the amount of current flow to 1.5 mA. FP-DI-330 and cFP-DI-330 8 ni.com Figure 10 shows the input circuitry for a single channel. V [c]FP-DI-330 VSUP INa Current Limiter Optical Isolation AC Smoothing Filter INb Status Indicators COM C Figure 10. [c]FP-DI-330 Input Circuit Sensing DC Voltages When an external device applies a positive or negative DC voltage with a magnitude of at least 4 V across the INa and INb terminals, the [c]FP-DI-330 registers an ON condition. The [c]FP-DI-330 limits the current drawn by the input circuit to approximately 1.5 mA for voltages up to 250 V. When an external device applies a voltage with a magnitude of less than 1 V to the INa and INb terminals, the [c]FP-DI-330 registers an OFF condition. When the external device applies a voltage between –4 and –1 V or between 1 and 4 V, the [c]FP-DI-330 may or may not register an ON condition. Ensure that the devices you connect to the [c]FP-DI-330 have OFF-state leakage currents lower than 350 µA. Higher leakage currents can cause false ON readings. The filter on the [c]FP-DI-330 inputs cause a delay of approximately 1.2 ms between the time a voltage changes from the ON state to the OFF state and the time the [c]FP-DI-330 recognizes the change. The delay for a transition from an OFF to an ON state is approximately 0.2 µs. Sensing AC Voltages The [c]FP-DI-330 senses a wide range of AC signals. The minimum ON-state voltage for an AC signal depends on the frequency of the signal. When an external device applies a voltage between 1 V and the minimum ON-state voltage across the input terminals, the channel may or may not register an ON condition. © National Instruments Corp. 9 FP-DI-330 and cFP-DI-330 The AC smoothing filter shown in Figure 10 ensures that the channel remains ON if the signal frequency is higher than 50 Hz and the signal voltage is higher than the minimum ON state. Refer to the Specifications section for more information about minimum ON-state voltages and digital logic levels. Status Indicators Figure 11 shows the status indicator LEDs on the [c]FP-DI-330. Figure 11. Status Indicators The [c]FP-DI-330 has two green status LEDs, POWER and READY. After you insert the [c]FP-DI-330 into a terminal base or backplane and apply power to the connected network module, the green POWER indicator lights and the [c]FP-DI-330 informs the network module of its presence. When the network module recognizes the [c]FP-DI-330, it sends initial configuration information to the [c]FP-DI-330. After the [c]FP-DI-330 receives this initial information, the green READY indicator lights and the module is in normal operating mode. In addition to the green POWER and READY indicators, each channel has a numbered green status indicator that lights when the channel is in the ON state. Isolation and Safety Guidelines Read the following information before attempting to connect the [c]FP-DI-330 to any circuits that may contain hazardous voltages. Caution This section describes the isolation of the [c]FP-DI-330 and its compliance with international safety standards. The field wiring connections are isolated from the backplane and the inter-module communication bus. The isolation barriers in the module provide 250 Vrms Installation Category II continuous isolation, verified by 2,300 Vrms , 1 minute dielectric withstand test. The [c]FP-DI-330 provides double insulation (compliant with IEC 61010-1) for FP-DI-330 and cFP-DI-330 10 ni.com working voltages of 250 Vrms1. Safety standards (such as those published by UL and IEC) require the use of double insulation between hazardous voltages and any human-accessible parts or circuits. Never try to use any isolation product between human-accessible parts (such as DIN rails or monitoring stations) and circuits that can be at hazardous potentials under normal conditions, unless the product is specifically designed for such an application, as is the [c]FP-DI-330. Even though the [c]FP-DI-330 is designed to handle applications with hazardous potentials, follow these guidelines to ensure a safe total system: • There is no safety isolation between channels on the [c]FP-DI-330. If a hazardous voltage is present on any channel, all channels are considered hazardous. Make sure that all other devices and circuits connected to the module are properly insulated from human contact. • Do not share the external supply voltages (the V and C terminals) with other devices (including other FieldPoint devices), unless those devices are isolated from human contact. • For Compact FieldPoint, you must connect the protective earth (PE) ground terminal on the cFP-BP-x backplane to the system safety ground. The backplane PE ground terminal has the following symbol stamped beside it: . Connect the backplane PE ground terminal to the system safety ground using 14 AWG (1.6 mm) wire with a ring lug. Use the 5/16 in. panhead screw shipped with the backplane to secure the ring lug to the backplane PE ground terminal. • As with any hazardous voltage wiring, make sure that all wiring and connections meet applicable electrical codes and commonsense practices. Mount terminal bases and backplanes in an area, position, or cabinet that prevents accidental or unauthorized access to wiring that carries hazardous voltages. • Do not use the [c]FP-DI-330 as the only isolating barrier between human contact and working voltages higher than 250 Vrms . 1 Working voltage is defined as the signal voltage plus the common-mode voltage. Common-mode voltage is the voltage of the module with respect to ground. © National Instruments Corp. 11 FP-DI-330 and cFP-DI-330 • Operate the [c]FP-DI-330 only at or below Pollution Degree 2. Pollution Degree 2 means that only nonconductive pollution occurs in most cases. Occasionally, however, a temporary conductivity caused by condensation must be expected. • Do not operate FieldPoint products in an explosive atmosphere or where there may be flammable gases or fumes. If you need to operate FieldPoint products in such an environment, the FieldPoint products must be in a suitably rated enclosure. • Operate the [c]FP-DI-330 at or below Installation Category II. Installation Category II is for measurements performed on circuits directly connected to the low-voltage installation. This category refers to local-level distribution, such as that provided by a standard wall outlet. Specifications The following specifications are typical for the range –40 to 70 °C unless otherwise noted. Specifications are subject to change without notice. Input Characteristics Number of channels.......................... 8 Compatibility .................................... TTL, CMOS, 24 VDC, 48 VDC, 120/240 VAC Maximum input voltage.................... 250 VAC or 250 VDC Digital logic levels Logic Level Minimum Maximum DC — ±1 V peak AC — ±1 V DC ±4 VDC ±250 VDC 50/60 Hz AC 15 VAC 250 VAC 1 kHz AC 3 VAC 250 VAC OFF state ON state FP-DI-330 and cFP-DI-330 12 ni.com Input current limiting........................ 1.5 mA Input delay time ................................ 1.2 ms Physical Characteristics Indicators .......................................... Green POWER and READY indicators, 8 green input state indicators Weight FP-DI-330................................... 130 g (4.5 oz) cFP-DI-330................................. 100 g (3.4 oz) Power Requirements Power from network module ............ 200 mW Isolation Voltage Channel-to-ground isolation Continuous ................................. 250 Vrms, Installation Category II Dielectric withstand.................... 2,300 Vrms, 1 minute Channel-to-channel isolation ............ None Environmental FieldPoint modules are intended for indoor use only. For outdoor use, they must be mounted inside a sealed enclosure. Operating temperature ...................... –40 to 70 °C Storage temperature .......................... –55 to 85 °C Humidity ........................................... 10 to 90% RH, noncondensing Maximum altitude............................. 2,000 m; at higher altitudes the isolation voltage ratings must be lowered Pollution Degree ............................... 2 © National Instruments Corp. 13 FP-DI-330 and cFP-DI-330 Shock and Vibration These specifications apply only to the cFP-DI-330. NI recommends Compact FieldPoint if your application is subject to shock and vibration. Operating vibration, random (IEC 60068-2-64).............................. 10–500 Hz, 5 grms Operating vibration, sinusoidal (IEC 60068-2-6)................................ 10–500 Hz, 5 g 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 electrical equipment for measurement, control, and laboratory use: • IEC 61010-1, EN 61010-1 • UL 3121-1, UL 61010C-1 • CAN/CSA C22.2 No. 1010.1 For UL, hazardous location, and other safety certifications, refer to the product label or visit ni.com/hardref.nsf, search by model number or product line, and click the appropriate link in the Certification column. Electromagnetic Compatibility CE, C-Tick, and FCC Part 15 (Class A) Compliant Emissions.......................................... EN 55011 Class A at 10 m FCC Part 15A above 1 GHz Immunity........................................... EN 61326-1:1997 + A2:2001, Table 1 Note For EMC compliance, operate this device with shielded cabling. FP-DI-330 and cFP-DI-330 14 ni.com CE Compliance This product meets the essential requirements of applicable European Directives, as amended for CE marking, as follows: Low-Voltage Directive (safety)......... 73/23/EEC Electromagnetic Compatibility Directive (EMC) ............................... 89/336/EEC Note Refer to the Declaration of Conformity (DoC) for this product for any additional regulatory compliance information. To obtain the DoC for this product, visit ni.com/hardref.nsf, search by model number or product line, and click the appropriate link in the Certification column. Mechanical Dimensions Figure 12 shows the mechanical dimensions of the FP-DI-330 installed on a terminal base. If you are using the cFP-DI-330, refer to your Compact FieldPoint controller user manual for the dimensions and cabling clearance requirements of the Compact FieldPoint system. 107.19 mm (4.22 in.) 109.5 mm (4.31 in.) 91.44 mm (3.60 in.) Figure 12. FP-DI-330 Mechanical Dimensions © National Instruments Corp. 15 FP-DI-330 and cFP-DI-330 Where to Go for Support For more information about setting up the FieldPoint system, refer to these National Instruments documents: • FieldPoint network module user manual • Other FieldPoint I/O module operating instructions • FieldPoint terminal base and connector block operating instructions Go to ni.com/support for the most current manuals, examples, and troubleshooting information. National Instruments corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas, 78759-3504. 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 follow the calling instructions or dial 512 795 8248. 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