Allen-Bradley DeviceNet Digital Base Terminal Block CompactBlock LDX I/O Series A Installation Instructions
Allen-Bradley DeviceNet Digital Base Terminal Block CompactBlock LDX I/O Series A offers a versatile solution for industrial automation. This series includes various models for input, output, and combined input/output functionality, allowing you to connect a wide range of devices and sensors to a DeviceNet network. The CompactBlock LDX I/O blocks feature easy mounting options, clear LED indicators for diagnostics, and reliable performance in demanding industrial environments.
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Installation Instructions DeviceNet Digital Base Terminal Block CompactBlock LDX I/O Catalog Numbers 1790D-T16BV0, 1790D-T8BV8V, 1790D-T8BV8B, 1790D-T0B16, 1790D-T0V16, 1790D-T0W6, 1790D-T8A0, 1790D-T0A6, Series A Topic Page Important User Information 2 Prevent Electrostatic Discharge 3 Power Supply 4 Environment and Enclosure 5 North American Hazardous Location Approval 6 Before You Begin 7 Install the Base Block 7 Set the Node Address 7 Mount the Base Block 8 Mount on a Panel 9 Mount on DIN Rail 10 Mount the Optional Expansion Block 10 Wire the Terminal Block 11 Connect the DeviceNet Cable 15 Interpret the LED Indicators 16 Specifications 19 Publication 1790-IN006C-EN-P - May 2006 2 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O Important User Information Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (publication SGI-1.1 available from your local Rockwell Automation sales office or online at http://literature.rockwellautomation.com) describes some important differences between solid state equipment and hard-wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable. In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment. The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams. No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual. Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is prohibited. Throughout this manual, when necessary, we use notes to make you aware of safety considerations. WARNING IMPORTANT ATTENTION Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss. Identifies information that is critical for successful application and understanding of the product. Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you to identify a hazard, avoid a hazard and recognize the consequences. SHOCK HAZARD Labels may be located on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be present. BURN HAZARD Labels may be located on or inside the equipment, for example, a drive or motor, to alert people that surfaces may be dangerous temperatures. Publication 1790-IN006C-EN-P - May 2006 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O 3 Prevent Electrostatic Discharge ATTENTION This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these guidelines when you handle this equipment: • Touch a grounded object to discharge potential static. • Wear an approved grounding wriststrap. • Do not touch connectors or pins on component boards. • Do not touch circuit components inside the equipment. • Use a static-safe workstation, if available. • Store the equipment in appropriate static-safe packaging when not in use. Publication 1790-IN006C-EN-P - May 2006 4 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O Power Supply ATTENTION 1790D-T0V16, 1790D-T0B16 To comply with the CE Low Voltage Directive (LVD), the DeviceNet network and outputs must be powered from a source compliant with Safety Extra Low Voltage (SELV) or Protected Extra Low Voltage (PELV). To comply with UL restrictions, the DeviceNet network must be powered from a source compliant with Class 2 or Limited Voltage/Current. 1790D-T8BV8V, 1790D-T8BV8B To comply with the CE Low Voltage Directive (LVD), the DeviceNet network and I/O must be powered from a source compliant with the Safety Extra Low Voltage (SELV) or Protected Extra Low Voltage (PELV). To comply with UL restrictions, the DeviceNet network must be powered from a source compliant with Class 2 or Limited Voltage/Current. 1790D-T0W6 To comply with the CE Low Voltage Directive (LVD), the DeviceNet network and relay coil power must be powered from a source compliant with Safety Extra Low Voltage (SELV) or Protected Extra Low Voltage (PELV). To comply with UL restrictions, the DeviceNet network must be powered from a source compliant with Class 2 or Limited Voltage/Current. 1790D-T16BV0 To comply with the CE Low Voltage Directive (LVD), the DeviceNet network and output devices must be powered from a source compliant with Safety Extra Low Voltage (SELV) or Protected Extra Low Voltage (PELV). To comply with UL restrictions, the DeviceNet network must be powered from a source compliant with Class 2 or Limited Voltage/Current. 1790D-T0A6, 1790D-T8A0 To comply with the CE Low Voltage Directive (LVD), the DeviceNet network must be powered from a source compliant with Safety Extra Low Voltage (SELV) or Protected Extra Low Voltage (PELV). To comply with UL restrictions, the DeviceNet network must be powered from a source compliant with Class 2 or Limited Voltage/Current. Publication 1790-IN006C-EN-P - May 2006 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O 5 Environment and Enclosure ATTENTION This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in IEC publication 60664-1), at altitudes up to 2000 m (6561 ft) without derating. This equipment is considered Group 1, Class A industrial equipment according to IEC/CISPR Publication 11. Without appropriate precautions, there may be potential difficulties ensuring electromagnetic compatibility in other environments due to conducted as well as radiated disturbance. This equipment is supplied as open-type equipment. It must be mounted within an enclosure that is suitably designed for those specific environmental conditions that will be present and appropriately designed to prevent personal injury resulting from accessibility to live parts. The enclosure must have suitable flame-retardant properties to prevent or minimize the spread of flame, complying with a flame spread rating of 5V A, V2, V1, V0 (or equivalent) if nonmetallic. The interior of the enclosure must be accessible only by the use of a tool. Subsequent sections of this publication may contain additional information regarding specific enclosure-type ratings that are required to comply with certain product safety certifications. Besides this publication, see: • Industrial Automation Wiring and Grounding Guidelines, Allen-Bradley publication 1770-4.1, for additional installation requirements. • NEMA Standards publication 250 and IEC publication 60529, as applicable, for explanations of the degrees of protection provided by different types of enclosure. Publication 1790-IN006C-EN-P - May 2006 6 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O North American Hazardous Location Approval The following information applies when operating this equipment in hazardous locations. Informations sur l’utilisation de cet équipement en environnements dangereux. Products marked CL I, DIV 2, GP A, B, C, D are suitable for use in Class I Division 2 Groups A, B, C, D, hazardous locations and nonhazardous locations only. Each product is supplied with markings on the rating nameplate indicating the hazardous location temperature code. When combining products within a system, the most adverse temperature code (lowest “T” number) may be used to help determine the overall temperature code of the system. Combinations of equipment in your system are subject to investigation by the local Authority Having Jurisdiction at the time of installation. Les produits marqués CL I, DIV 2, GP A, B, C, D ne conviennent qu’à une utilisation en environnements de Classe I Division 2 Groupes A, B, C, D dangereux et non dangereux. Chaque produit est livré avec des marquages sur sa plaque d’identification qui indiquent le code de température pour les environnements dangereux. Lorsque plusieurs produits sont combinés dans un système, le code de température le plus défavorable (code de température le plus faible) peut être utilisé pour déterminer le code de température global du système. Les combinaisons d’équipements dans le système sont sujettes à inspection par les autorités locales qualifiées au moment de l’installation. EXPLOSION HAZARD - WARNING • Do not disconnect equipment unless power has been removed or the area is known to be nonhazardous. • Do not disconnect connections to this equipment unless power has been removed or the area is known to be nonhazardous. Secure any external connections that mate to this equipment by using screws, sliding latches, threaded connectors, or other means provided with this product. • Substitution of components may impair suitability for Class I, Division 2. • If this product contains batteries, they must only be changed in an area known to be nonhazardous. Publication 1790-IN006C-EN-P - May 2006 RISQUE D’EXPLOSION – AVERTISSEMENT • Couper le courant ou s’assurer que l’environnement est classé non dangereux avant de débrancher l'équipement. • Couper le courant ou s'assurer que l’environnement est classé non dangereux avant de débrancher les connecteurs. Fixer tous les connecteurs externes reliés à cet équipement à l'aide de vis, loquets coulissants, connecteurs filetés ou autres moyens fournis avec ce produit. • La substitution de composants peut rendre cet équipement inadapté à une utilisation en environnement de Classe 1, Division 2. • S’assurer que l’environnement est classé non dangereux avant de changer les piles. DeviceNet Digital Base Terminal Block CompactBlock LDX I/O 7 Before You Begin Read this section about important CompactBlock requirements. Current functions of CompactBlock LDX I/O blocks require the current, modular electronic data sheet (EDS) file for RSNetWorx for DeviceNet software, version 3.0 or later. These files are are available online at www.ab.com/networks/eds/. EDS files for blocks with matching catalog numbers for both D-Shell and terminal block versions are the same. On the Web site and in RSNetWorx for DeviceNet software, find the EDS file for both versions of the blocks. For example, for the EDS file for 1790D-T8BV8B blocks, use the EDS file labelled 1790D-8BV8B. Install the Base Block To install the base block, follow these steps. 1 . Set the node address on the base block. 2. Mount the base block. 3. Mount the optional expansion blocks. 4. Wire the terminal block. 5. Connect the DeviceNet cable. Set the Node Address When setting the node address on the base block, note that each base block comes with its internal program set for node address 63. To reset the node address, adjust the switches on the front of the base block. The two switches are most significant digit (MSD) and least significant digit (LSD). You can set switches between 00 and 63. Publication 1790-IN006C-EN-P - May 2006 8 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O The base block reads the rotary switches only when power is applied. Switch settings between 64 and 99 cause the base block to use the last valid node address stored internally. In this example, the node address setting is 11. 44152 You can also set the node address through RSNetWorx for DeviceNet software or a similar configuration tool. When you use software configuration for the node address, set the switches between 64 and 99. Mount the Base Block Mount the base block to a panel or DIN rail. We recommend that you ground the panel or DIN rail before mounting the block. IMPORTANT The analog base module can accommodate a maximum of two digital expansion modules. Publication 1790-IN006C-EN-P - May 2006 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O 9 Mount on a Panel For panel mounting, use these steps. 1 . Place the block against the panel where you want it mounted. 2. Gently pull and position the expansion cover to the left. 3. Place a center punch, nail, or similar device through the mounting holes in the block and make two marks on the panel at the lower-left and upper-right corners of the module. 4. Remove the block and drill two holes in the panel to accommodate each of the mounting screws. 95 mm (3.74 in.) 41 mm (1.6 in.) Expansion Cover 44153 5. Replace the block on the panel and place a screw through each of the two mounting holes. 6. Tighten the screws until the block is firmly in place. Publication 1790-IN006C-EN-P - May 2006 10 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O Mount on DIN Rail For DIN-rail mounting, use these steps. 1 . Hook the top slot of the base block over the DIN rail. Locking Lever 44154 2. Pull down on the locking lever while pressing the base block against the rail. 3. Push up on the locking lever to secure the base block to the rail when the base block is flush against the rail. Mount the Optional Expansion Block Mount the expansion block by connecting it to a previously-installed CompactBlock LDX I/O base or expansion block. Beginning with the base block, mount your expansion block either horizontally or vertically. • To mount horizontally (left to right), add an expansion block in an end-to-end configuration. • To mount vertically (up or down), add an expansion block either up or down in a back-to-back configuration. In this configuration, you must use the optional 15 cm (5.9 in.) ribbon cable (1790-15CMCBL) and alternately position the block in a right-side up, upside-down fashion. Publication 1790-IN006C-EN-P - May 2006 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O 11 Mount your block on a panel or DIN rail. Horizontal Mounting Vertical Mounting The longer expansion cable (1790-15CMCBL) provides for up to 7 cm (2.76 in.) of space in between blocks. 44155 Wire the Terminal Block WARNING If you connect or disconnect wiring while the field-side power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding. Publication 1790-IN006C-EN-P - May 2006 12 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O See the figures for wiring information. 1790D-T16BVO Input Base Block Wiring Diagram IN0 IN4 IN2 1 IN6 3 2 5 4 IN1 IN8 COM0 IN12 IN10 COM1 IN14 7 11 9 17 15 13 19 6 8 IN5 IN9 COM0 IN13 IN7 IN11 COM1 IN15 IN3 12 10 18 16 14 20 44178 For inputs 0…7: For sinking inputs, wire COM 0 (pin 9) to Field Power (-) GND. For sourcing inputs, wire COM 0 (pin 9) to Field Power (+) 24V dc. For inputs 8…15: For sinking inputs, wire COM 1 (pin 11) to Field Power (-) GND. For sourcing inputs, wire COM 1 (pin 11) to Field Power (+) 24V dc. Note that both COM 0 and COM 1 are internally connected. COM 0 is used for inputs 0…7. COM 1 is used for inputs 8…15. 1790D-T8BV8V Input/Output Base Block Wiring Diagram IN0 IN4 1 IN6 3 2 5 4 IN1 7 6 11 9 8 10 12 14 OUT6 17 15 13 GND 20 OUT5 OUT3 For sinking inputs, wire COM (pin 9) to Field Power (-) GND. For sourcing inputs, wire COM (pin 9) to Field Power (+) 24V dc. Note that both COM (pins 9 and 10) are internally connected. For sinking outputs, wire V dc (pin 11) to Field Power (+) 24V dc, and wire GND (pin 12) to Field Power (-) GND. Publication 1790-IN006C-EN-P - May 2006 19 18 16 OUT1 COM IN7 OUT4 OUT2 VDC IN5 IN3 OUT0 COM IN2 OUT7 44179 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O 13 1790D-T8BV8B Input/Output Base Block Wiring Diagram IN0 IN4 1 IN6 3 2 5 4 11 9 8 IN7 19 18 16 14 OUT1 COM IN3 OUT6 17 15 13 12 10 IN5 OUT4 OUT2 VDC 7 6 IN1 OUT0 COM IN2 OUT3 GND 20 OUT5 OUT7 44180 For sinking inputs, wire COM (pin 9) to Field Power (-) GND. For sourcing inputs, wire COM (pin 9) to Field Power (+) 24V dc. Note that COM (pins 9 and 10) are internally connected. For sourcing outputs, wire V dc (pin 11) to Field Power (+) 24V dc, and wire GND (pin 12) to Field Power (-) GND. 1790D-T0B16 Output Base Block Wiring Diagram OUT0 OUT4 OUT2 1 3 2 VDC0 OUT6 5 4 VDC1 7 6 11 9 8 OUT8 OUT12 OUT10 OUT14 12 10 17 15 13 18 16 14 19 20 OUT1 OUT5 OUT9 GND0 OUT13 OUT3 OUT7 OUT11 GND1 OUT15 44181 For sourcing outputs, wire V dc 0 (pin 9) and V dc 1 (pin 11) to Field Power (+) 24V dc, and wire GND0 (pin 10) and GND1 (pin 12) to Field Power (-) GND. 1790D-T0V16 Output Base Block Wiring Diagram OUT0 OUT4 OUT2 1 3 2 VDC0 OUT6 5 4 OUT1 7 6 OUT5 OUT3 VDC1 11 9 8 OUT8 OUT12 OUT10 OUT14 10 12 17 15 13 14 16 19 18 20 OUT9 GND0 OUT13 OUT7 OUT11 GND1 OUT15 44182 For sinking outputs, wire V dc 0 (pin 9) and V dc 1 (pin 11) to Field Power (+) 24V dc, and wire GND0 (pin 10) and GND1 (pin 12) to Field Power (-) GND. Publication 1790-IN006C-EN-P - May 2006 14 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O 1790D-T0W6 Relay Output Base Block Wiring Diagram VDC OUT0 OUT4 OUT2 NC NC OUT1 OUT5 OUT3 1 3 5 7 11 9 NC 17 15 13 19 2 4 GND COM0 COM4 COM2 NC NC COM1 COM5 COM3 NC 6 8 12 10 18 16 14 20 44183 Wire V dc (pin 1) to Field Power (+) 24V dc. Wire GND (pin 2) to Field Power (-) GND. 1790D-T8A0 ac Input Base Block Wiring Diagram VAC IN0 1 IN1 3 5 2 4 11 9 8 19 18 16 14 COM COM COM IN7 17 15 13 12 10 COM COM IN6 IN5 IN3 7 6 COM IN4 IN2 VAC 20 COM COM COM COM 44184 Wire 120V ac Field Power to V ac (pin 1) and COM (pin 2). Note that all V ac are internally connected. All COM are internally connected. 1790D-T0A6 ac Output Base Block Wiring Diagram VAC 0UT0 VAC 1 3 2 5 4 COM 7 6 11 9 8 10 12 14 NC 17 15 13 16 COM COM COM NC 0UT5 0UT3 COM COM 0UT4 0UT2 0UT1 COM 19 18 20 NC COM NC Wire 120V ac Field Power to V ac (pin 1) and COM (pin 2). Note that all V ac are internally connected. All COM are internally connected. Publication 1790-IN006C-EN-P - May 2006 44185 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O 15 Connect the DeviceNet Cable Follow these procedures to connect the DeviceNet cable to the base block. We do not supply the DeviceNet connector with the base block. You must purchase the connector separately. These are the types of connectors you order directly from Rockwell Automation. • 1799-DNETCON - 5-position open-style connector • 1799-DNETSCON - 5-position open-style connector with locking screws • 1799-DNC5MMS - 5-position open-style to 12 mm connector with locking screws WARNING If you connect or disconnect the DeviceNet cable with power applied to this module or any device on the network, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding. 1 . Connect the DeviceNet wiring (drop line) to one of the DeviceNet connectors as shown in the figure, noting that a color-coded wiring diagram is printed next to the connector on the left side of the base block. V+ Red Drain/Shield V- Black Can_H White Can_L Blue V+ Red Can_H White Wiring Diagram for 1799-DNETCON Connector Drain/Shield Can_L Blue V- Black Wiring Diagram for 1799-DNC5MMS Connector 44186 Publication 1790-IN006C-EN-P - May 2006 16 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O 2. Attach the connector to the base block once you have properly wired the drop line to the connector. 3. Use the locking screws on the connector to fasten it to the base block, if applicable. Interpret the LED Indicators Read this section for information about how to interpret base block LED indicators. The base block has the following indicators. • Block status • Network status • I/O status If a module status indicator is flashing red, refer to the cable break procedures section. Indication Probable Cause Recommended Action Module Status Solid Red Unrecoverable fault in base unit. Replace base block. Flashing Red Fault in expansion unit. Reconnect or replace, as needed. Solid Green Normal operation. None. Off No power. Apply power to device. Network Status Solid Red Module node number is a duplicate of an existing node, or network communication issues exist. Change module node number to an unused address, or verify network wiring is correct and communication is stable. Flashing Red An I/O connection has timed out. Cycle power to the module. Publication 1790-IN006C-EN-P - May 2006 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O 17 Indication Probable Cause Recommended Action Solid Green The module is operating in a normal condition, and the module is online with connections in the established state. As a group 2 module, the module is allocated to a master. None. Flashing Green The module is online with no connections in the established state. Establish connections to other nodes. As a group 2 module, allocate the module to a master. Off No power. Wait until the module has completed the dup_MAC_id test or power the module. Function LED Color Module Illumination Condition Outputs Each output: Green None Green Output is not energized. Output is energized. Inputs Each input: Green None Green No valid input is present. Valid input is present. I/O Status Cable Break Procedures A cable break in any location between either of the following produces data of 1 in the data table for all inputs down stream of the cable break. • Base and digital input expansion module • Digital input expansion module and another digital input expansion module Publication 1790-IN006C-EN-P - May 2006 18 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O All digital-expansion inputs produce data of 1 if the expansion cable is removed. No status is in the produced assembly. Attribute 101 in the identity object reports module faults. If no faults are present, an explicit message GET command returns 0. If the ribbon cable is disconnected, it returns 0x04, which is for module location change. The module LED also flashes indicating a fault if an expansion is disconnected. To determine if the data is valid, continuously send an explicit message to the module to check the status of the input conditions since no status word is in the I/O mapping data table. • Class = 1 • Instance = 1 • Attribute = 101 (0x65) To detect the loss of communication to the expansion module, use one of these methods. • If an unused input is available, tie the unused input on the last expansion low. If that input goes high with a value of 1, a loss of communication to the expansion or expansions occurred. • If no unused input is available, check expansion inputs for the condition of all on. To check validity in this case, send an explicit message to the identity object class 1, instance 1, attribute 101 (0x65). A returned value of 0 indicates the input data is good. Publication 1790-IN006C-EN-P - May 2006 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O 19 Specifications 1790D-T16BV0 Universal dc Input Base Block Attribute Value Inputs per Base Block 16 point, sinking or sourcing On-state Voltage 9.6V dc min, 24V dc nom, 28.8V dc max Off-state Voltage 5.0V dc max On-state Current 8 mA max per channel @ 28.8V dc Input Impedance, Nom 4.8 kΩ Field Power Dissipation 3.68 W max @ 28.8V dc Isolation Voltage 50V dc (continuous), reinforced insulation type, tested at 1250V ac for 60 s, I/O to system 1790D-TOV16 and 1790D-TOB16 dc Output Base Block Attribute Value Outputs per Base Block 16 points non-isolated, sinking: 1790D-TOV16 16 points non-isolated, sourcing: 1790D-TOB16 On-state Voltage 10V dc min, 24Vdc nom, 28.8V dc max On-state Voltage Drop 0.5V dc max On-state Current 1 mA min per channel Off-state Voltage 28.8V dc max Off-state Leakage 0.5 mA max Output Signal Delay Off to On: 0.5 ms max, On to Off: 1.0 ms max Output Current Rating 0.5 A max per output, 4.0 A max per common Field Power Dissipation 2.76 W @ 28.8V dc Isolation Voltage 50V dc (continuous), reinforced insulation type, tested at 1250V ac for 60 s, I/O to system Publication 1790-IN006C-EN-P - May 2006 20 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O 1790D-T8BV8V, 1790D-T8BV8B dc Input/Output Combination Base Block Attribute Value Field Power Dissipation 3.22 W @ 28.8V dc Isolation Voltage 50V dc (continuous), reinforced insulation type, tested at 1250V ac for 60 s, I/O to system Input Inputs per Base Block 8 points non-isolated, sinking or sourcing On-state Voltage 9.6V dc min 24V dc nom 28.8V dc max Off-state Voltage, Max 5.0V dc On-state Current 8 mA max per channel @ 28.8V dc Input Impedance, Nom 4.8 kΩ Output Outputs per Base Block 8 points non-isolated, sinking - 1790D-T8BV8V 8 points non-isolated, sourcing - 1790D-T8BV8B On-state Voltage, 10V dc min 24V dc nom 28.8V dc max On-state Voltage Drop 0.5V dc max On-state Current 1 mA min per channel Off-state Leakage 0.5 mA max Output Signal Delay, Off to On 0.5 ms max Output Signal Delay, On to Off 1.0 ms max Output Current Rating 0.5 A max per output 4.0 A max per common Publication 1790-IN006C-EN-P - May 2006 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O 21 1790D-TOW6 ac/dc Relay Output Base Block Attribute Value Relay Type Form A, normally open Single pole, single throw Output Voltage Range (load dependent) 5…28V dc @ 2.0 A resistive 48V dc @ 0.8 A resistive 125V ac @ 2.0 A resistive 250V ac @ 2.0 A resistive Load, Min 100 µA, 100 mV dc per point On-state Voltage Drop, Max 0.5V @ 2.0 A, resistive load, 24V dc Initial Contact Resistance 30 mΩ Expected Contact Life 300 kcycles resistive 100 kcycles inductive Off-state Leakage, Max 1.5 mA Output Delay Time, On to Off 10 ms max Output Delay Time, Off to On 10 ms max Relay Coil Power Dissipation 1.7 W @ 28.8V dc Isolation Voltage 50V dc (continuous), reinforced insulation type, tested at 1250V ac for 60 s, I/O to system 1790D-T8AO ac Input Base Block Attribute Value Inputs per Expansion Block 8 points non-isolated On-state Voltage Range 79V ac min 110V ac nom 132V ac max Input Impedance 18 kΩ On-state Current 9 mA max @ 132V ac Publication 1790-IN006C-EN-P - May 2006 22 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O 1790D-T8AO ac Input Base Block Attribute Value Off-state Current 45V ac max Input Signal Delay, Off to On 10 ms Input Signal Delay, On to Off 30 ms max Field Power Dissipation 3VA @ 132V ac Isolation Voltage 120V ac (continuous), reinforced insulation type, tested at 1250V ac for 60 s, I/O to system 1790D-TOA6 Output Base Block Attribute Value Outputs per Expansion Block 6 points non-isolated Load Voltage Range 15…132V ac Load Current, Max 0.5 A rms Load Current, Min 10 mA rms Off-state Leakage Current, Max 1.0 mA rms @ 100V rms 60 Hz On-state Voltage Drop, Max 1.3V rms @ max load Operate Time, Max 1 ms Release, Max 1/2 cycle + 1 ms Insulation Resistance 1,000 MΩ min (for input-output) Input Signal Delay, Off to On 10 ms Publication 1790-IN006C-EN-P - May 2006 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O 23 1790D-TOA6 Output Base Block Input Signal Delay, On to Off 30 ms max Field Power Dissipation 3.9VA @ rated current Isolation Voltage 120V ac (continuous), reinforced insulation type, tested at 1250V ac for 60 s, I/O to system Environmental - Common To All Base Blocks in This Publication Attribute Value Operating Temperature IEC 60068-2-1 (Test Ad, Operating Cold), IEC 60068-2-2 (Test Bd, Operating Dry Heat), IEC 60068-2-14 (Test Nb, Operating Thermal Shock) 0...55 °C (32...131 °F) Storage Temperature IEC60068-2-1 (Test Ab, Unpackaged Nonoperating Cold) IEC60068-2-2 (Test Bb, Unpackaged Nonoperating Dry Heat) IEC60068-2-14 (Test Na, Unpackaged Nonoperating Thermal Shock) -40...85 °C (-40...185 °F) Relative Humidity IEC60068-2-30 (Test Db, Unpackaged Damp Heat) 5...90% noncondensing North American Temp Code T5 Vibration IEC 60068-2-6 (Test Fc, Operating): 2 g @ 10…500 Hz Shock Operating IEC60068-2-27 (Test Ea, Unpackaged Shock) 10 g Shock Non-operating IEC60068-2-27 (Test Ea, Unpackaged Shock) 30 g Emissions CISPR 11: Group 1, Class A ESD Immunity IEC6100-4-2 8 kV air discharges Radiated RF Immunity IEC 61000-4-3 10V/m with 1 kHz sine-wave 80%AM from 80…1000 MHz 10V/m with 200 Hz 50% Pulse 100%AM at 900 MHz Publication 1790-IN006C-EN-P - May 2006 24 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O Environmental - Common To All Base Blocks in This Publication EFT/B Immunity IEC 61000-4-4 ±1 kV at 5 kHz on power ports ±2 kV at 5 kHz on signal ports ±2 kV at 5 kHz on communications ports Surge Transient Immunity IEC 61000-4-5: ±1 kV line-line (DM) on power ports ±1 kV line-line (DM) on signal ports ±2 kV line-earth (CM) on communications ports Conducted RF Immunity IEC61000-4-6 10V rms with 1 kHz sine-wave 80%AM at 150 kHz...80 MHz Enclosure Type Rating None (open-style) Mounting DIN rail or panel Dimension 52 x 104 x 42 mm (2.03 x 4.07 x 1.64 in.) Weight 0.1 kg (0.3 lb) Wiring, Terminal Block (M3.0) Screw Torque 7 lb-in max (use copper or copper-clad aluminum conductors) Wire Size 2.5…0.25 mm2 (14 …22 AWG) solid or stranded copper wire rated at 75 °C or greater 1.2 mm (3/64 in.) insulation max Wiring Category (1) 2 - on signal ports 2 - on power ports 2 - on communications ports dc Field Power Supply voltage - 24V dc nom Voltage range - 10…28.8V dc dc Relay Coil Power Supply voltage - 24V dc nom Voltage range - 19.2…28.8V dc ac Field Power Supply voltage - 115V ac, 60 Hz Voltage range - 85…132V ac, 47…63 Hz DeviceNet DeviceNet Power Supply voltage - 24V dc nom Voltage range - 8…28V dc Publication 1790-IN006C-EN-P - May 2006 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O 25 Environmental - Common To All Base Blocks in This Publication DeviceNet Power Dissipation 1.2 W max @ 28.8V dc Network Length 500 m (1640 ft) max @ 125 Kbps 100 m (328 ft) max @ 500 Kbps Network Protocol Slave messaging: • Poll command • Bit Strobe command • Cyclic command • COS command Indicators 1 red/green module status, 1 red/green network status Number of Nodes 64 max - rotary switch-type node address setting Communication Rate 125 Kbps, 250 Kbps, 500 Kbps - auto baud rate selection (1) Use this Conductor Category information for planning conductor routing. Refer to Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1. Publication 1790-IN006C-EN-P - May 2006 26 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O Certifications Attribute Certification(1) (when product is marked) Value 1790D-TOV16, 1790D-TOB16, 1790D-T8BV8V, 1790D-T8BV8B, 1790D-T16BV0 c-UL-us UL Listed Industrial Control Equipment, certified for U.S. and Canada. See UL File E65584. c-UL-us UL Listed for Class I, Division 2, Group A,B,C,D Hazardous Locations, certified for U.S. and Canada. See UL File E194810. European Union 89/336/EEC EMC Directive,compliant with: EN 50082-2; Industrial Immunity EN 61326; Meas./Control/Lab., Industrial Requirements EN 61000-6-2; Industrial Immunity EN 61000-6-4; Industrial Emissions C-Tick Australian Radiocommunications Act, compliant with: AS/NZS CISPR11; Industrial Emissions Open Device Vendors Association (ODVA) conformance tested to DeviceNet specifications 1790D-T8A0, 1790D-T0A6, 1790D-T0W6 c-UL-us UL Listed Industrial Control Equipment, certified for U.S. and Canada. See UL File E65584. c-UL-us UL Listed for Class I, Division 2, Group A,B,C,D Hazardous Locations, certified for U.S. and Canada. See UL File E194810. European Union 89/336/EEC EMC Directive,compliant with: EN 50082-2; Industrial Immunity EN 61326; Meas./Control/Lab., Industrial Requirements EN 61000-6-2; Industrial Immunity EN 61000-6-4; Industrial Emissions European Union 73/23/EEC LVD, compliant with: EN 61131-2; Programmable Controllers C-Tick Australian Radiocommunications Act, compliant with: AS/NZS CISPR11; Industrial Emissions Open Device Vendors Association (ODVA) conformance tested to DeviceNet specifications (1) See the Product Certification link at www.ab.com for Declarations of Conformity, Certificates, and other certification details. Publication 1790-IN006C-EN-P - May 2006 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O 27 Notes: Publication 1790-IN006C-EN-P - May 2006 Rockwell Automation Support Rockwell Automation provides technical information on the web to assist you in using its products. At http://support.rockwellautomation.com, you can find technical manuals, a knowledge base of FAQs, technical and application notes, sample code and links to software service packs, and a MySupport feature that you can customize to make the best use of these tools. For an additional level of technical phone support for installation, configuration, and troubleshooting, we offer TechConnect Support programs. For more information, contact your local distributor or Rockwell Automation representative, or visit http://support.rockwellautomation.com. Installation Assistance If you experience a problem with a hardware module within the first 24 hours of installation, please review the information that's contained in this manual. You can also contact a special Customer Support number for initial help in getting your module up and running. United States 1.440.646.3223 Monday – Friday, 8am – 5pm EST Outside United States Please contact your local Rockwell Automation representative for any technical support issues. New Product Satisfaction Return Rockwell tests all of its products to ensure that they are fully operational when shipped from the manufacturing facility. However, if your product is not functioning, it may need to be returned. United States Contact your distributor. You must provide a Customer Support case number (see phone number above to obtain one) to your distributor in order to complete the return process. Outside United States Please contact your local Rockwell Automation representative for return procedure. Allen-Bradley, CompactBlock, Rockwell Automation, and RSNetworx are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies. Publication 1790-IN006C-EN-P - May 2006 Supersedes Publication 1790-IN006B-EN-P - April 2003 PN 953014-38 Copyright © 2006 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A. ">

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Key features
- DeviceNet compatible
- Input, Output, Combined I/O
- Panel and DIN rail mount
- LED indicators
- Compact size
- Easy wiring
- Hazardous location approval
- Various models for different applications
- Reliable performance
Frequently asked questions
You can mount the CompactBlock LDX I/O Series A on a panel or on a DIN rail. The manual provides detailed instructions for both mounting methods.
The CompactBlock LDX I/O Series A includes models with different functions, such as input, output, and combined input/output models. You can find detailed specifications for each model in the manual.
The manual explains the meaning of different LED colors and flashing patterns on the CompactBlock LDX I/O Series A. These indicators provide information about module status, network status, and I/O status.