Installation Instructions

Transcription

1 Installation Instructions FLEX I/O 4 hannel Pulse ounter odule at. o. 794-IP4 Series Important User Information Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and aintenance of Solid State ontrols (Publication SGI-. available from your local ockwell Automation sales office or online at describes some important differences between solid state equipment and hard-wired electromechanical devices. ecause 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 ockwell 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. ecause of the many variables and requirements associated with any particular installation, ockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams. o patent liability is assumed by ockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual. eproduction of the contents of this manual, in whole or in part, without written permission of ockwell Automation, Inc. is prohibited. Throughout this manual we use notes to make you aware of safety considerations. Identifies information about practices or circumstances that can cause WAIG an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss. IPOTAT Identifies information that is critical for successful application and understanding of the product. WAIG WAIG When you insert or remove the module while backplane power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations. e sure that power is removed or the area is nonhazardous before proceeding. epeated electrical arcing causes excessive wear to contacts on both the module and its mating connector. Worn contacts may create electrical resistance that can affect module operation. 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. e sure that power is removed or the area is nonhazardous before proceeding. FLEX I/O is grounded through the I rail to chassis ground. Use zinc plated yellow-chromate steel I rail to assure proper grounding. The use of other I rail materials (e.g. aluminum, plastic, etc.) that can corrode, oxidize, or are poor conductors, can result in improper or intermittent grounding. Preventing Electrostatic ischarge 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. o not touch connectors or pins on component boards. o not touch circuit components inside the equipment. If available, use a static-safe workstation. Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you: identify a hazard avoid a hazard recognize the consequence Environment and Enclosure This equipment is intended for use in a Pollution egree industrial environment, in overvoltage ategory II applications (as defined in IE publication ), at altitudes up to 000 meters without derating. This equipment is considered Group, lass A industrial equipment according to IE/ISP Publication. 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 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. See EA Standards publication 50 and IE publication 6059, as applicable, for explanations of the degrees of protection provided by different types of enclosure. Also, see the appropriate sections in this publication, as well as the Allen-radley publication ("Industrial Automation Wiring and Grounding Guidelines"), for additional installation requirements pertaining to this equipment. orth American Hazardous Location Approval The following information applies when operating this equipment in hazardous locations: Products marked L I, IV, GP A,,, are suitable for use in lass I ivision Groups A,,,, 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. ombinations of equipment in your system are subject to investigation by the local Authority Having Jurisdiction at the time of installation. WAIG EXPLOSIO HAZA o not disconnect equipment unless power has been removed or the area is known to be nonhazardous. o 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 lass I, ivision. If this product contains batteries, they must only be changed in an area known to be nonhazardous. Informations sur l utilisation de cet équipement en environnements dangereux : Les produits marqués "L I, IV, GP A,,, " ne conviennent qu à une utilisation en environnements de lasse I ivision Groupes A,,, dangereux et non dangereux. haque 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. ISQUE EXPLOSIO AVETISSEET ouper le courant ou s assurer que l environnement est classé non dangereux avant de débrancher l'équipement. ouper 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 lasse I, ivision. S assurer que l environnement est classé non dangereux avant de changer les piles. Publication 794-I064-E-P - arch 005

2 Installing Your Pulse ounter odule 4 The module mounts on a 794 terminal base. uring mounting of all devices, be sure that all debris (metal chips, wire strands, etc.) is kept from falling into the module. ebris that falls into the module could cause damage on power up.. otate the keyswitch () on the terminal base () clockwise to position as required for this type of module.. ake certain the flexbus connector () is pushed all the way to the left to connect with the neighboring termbase/adapter. You cannot install the module unless the connector is fully extended.. ake sure the pins on the bottom of the module are straight so they will align properly with the connector in the terminal base. WAIG If you remove or insert the module while the backplane power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations. e sure that power is removed or the area is nonhazardous before proceeding. 4. Position the module (4) with its alignment bar (5) aligned with the groove (6) on the terminal base. 5. Press firmly and evenly to seat the module in the terminal base unit. The module is seated when the latching mechanism (7) is locked into the module. onnecting Wiring for the 794-IP4 (using a 794-T, -T or -TS terminal base unit). onnect individual input wiring (, ) or (, ) for each channel to numbered terminals on the 0-5 row (A) as indicated in the table below If daisychaining power to the next terminal base, connect a jumper from terminal 5 (+V dc) on this base unit to terminal on the next base unit. 6. If continuing dc common to the next base unit, connect a jumper from terminal (common) on this base unit to terminal 6 on the next base unit. 6 -V ommon Voltage In +V onnecting Wiring for the 794-IP4 (using a 794-T terminal base unit). onnect individual input wiring (, ) or (, ) for each channel to the even-numbered terminals on the 6- row () as indicated in the table below.. onnect the associated input common to the corresponding odd-numbered terminal on the -5 row () for each input as indicated in the table below. Inputs ommons Voltage -V (Supply ommon) = Terminals 6 and +V (Supply +Voltage) = Terminals and 5 (Use and 5 for daisy-chaining to next terminal base unit.) (794-T shown) o not connect maximum input voltage simultaneously to all inputs if the module ambient temperature is expected to exceed 40. If the ambient temperature is expected to continuously exceed 40, you must limit the input voltage using an external resistor on each input. A kw resistor effectively limits a 4V sensor signal to about 5V at the input. o not limit the input to less than 6V.. onnect +V dc power to terminal on the -5 row (). 4. onnect dc return to terminal 6 on the 6- row (). Voltage Out +V 5. If daisychaining power to the next terminal base, connect a jumper from terminal 5 (+V dc) on this base unit to terminal on the next base unit. 6. If continuing dc common to the next base unit, connect a jumper from terminal (common) on this base unit to terminal 6 on the next base unit. A -V ommon. onnect the associated input common to the corresponding terminal on the 6- row () for each input as indicated in the table below. o not connect maximum input voltage simultaneously to all inputs if the module ambient temperature is expected to exceed 40. If the ambient temperature is expected to continuously exceed 40, you must limit the input voltage using an external resistor on each input. A kω resistor effectively limits a 4V sensor signal to about 5V at the input. o not limit the input to less than 6V. O 6 0 Even umbered I/O Terminals 0 thru V Odd umbered I/O Terminals thru 5 +V = Terminals and 5 O (-V) = Terminals 6 and O 5 5 +V. onnect +V dc power to terminal on the -5 row (). 4. onnect dc return to terminal 6 on the 6- row (). Publication 794-I064-E-P - arch 005

3 Wiring onnections for the 794-IP4 794-T, -T, -TS hannel Signal ame Signal 0V dc...4v 794-T Signal O dc 6-bit Period Time easurement 0 A A A A A A A A bit Period Time easurement 0 A A A A A A A A V dc Terminals 6 thru (794--T, -T, -TS) /4V dc Terminals and 5 (794-T) Terminals thru 5 (794-T, -TS) Any unused signals have to be connected to the associated common. Auxiliary terminal blocks are required when using these terminal base units. Example of 6-bit Period Time easurement and 6-bit Accumulating Pulse ounter Wiring (4 channels) Accumulating Pulse ounter hannel hannel hannel hannel 0 Terminals 6 and Terminals and 5 Example of -bit Period Time easurement Wiring (4 channels) -bit period time measurement hannel hannel hannel hannel 0 Input (read) Image ec Oct eserved ounter 00-6-bit period measurement for channel 0 ounter 0 - pulse counter for channel 0-6-bit pulse counting -bit period measurement for channel 0 -bit period measurement for channel 0 ounter 0-6-bit period measurement for channel 4 ounter - pulse counter for channel - 6-bit pulse counting -bit period measurement for channel 4 -bit period measurement for channel 5 ounter 0-6-bit period measurement for channel 6 ounter - pulse counter for channel - 6-bit pulse counting 5 -bit period measurement for channel 6 -bit period measurement for channel 7 ounter 0-6-bit period measurement for channel 8 ounter - pulse counter for channel - 6-bit pulse counting 7 -bit period measurement for channel 8 -bit period measurement for channel 9 eadback of ontrol Word eserved 0 evidion ead - software version code Where = easurement eady bit - positive edge measurement ready for the respective channel = eset done Output/onfiguration Image Signal Inputs 0 External 6 0V dc Power Supply /4V dc /4V dc OTE: To reduce noise, attach to 0V dc 5 A 0 0 External Power Supply /4V dc Signal Inputs V dc /4V dc OTE: To reduce noise, attach to 0V dc 5 A 5 ec Oct ontrol Word 0 - selects the measure function ontrol Word - sets the clock frequency and period multiple ontrol Word - sets the start of a new measurement ot used Publication 794-I064-E-P - arch 005

4 4 escription of ontrol Word 0 escription of ontrol Word it escription it 0 Pulse ounting and period time measurement selection for hannel 0 = period time measurement selected - -bit it 0 Pulse ounting and period time measurement selection for hannel = period time measurement selected- -bit it 0 Pulse ounting and period time measurement selection for hannel = period time measurement selected- -bit it 0 Pulse ounting and period time measurement selection for hannel = period time measurement selected- -bit it 04 hannel 0-0 = filter disabled; = filter enabled it 05 hannel - 0 = filter disabled; = filter enabled it 06 hannel - 0 = filter disabled; = filter enabled it 07 hannel - 0 = filter disabled; = filter enabled its its Filter sample clock frequency and period (common to all channels) kHz.6µs 0.5kHz.µs kHz 9.6µs 7.85kHz 8µs eserved Use filter when the input waveform has slow rise/fall time or has high frequency noise on the input waveform. Filter Function escription Use the filter in either 6-bit or -bit mode. Enable filter to use a triangular shape waveform of frequencies as low as Hz. If the filter is not enabled, the module will only function properly with input waveform of square shape. it escription 00 Start new measurement - hannel 0 - when set, start new 0 Start new measurement - hannel - when set, start new 0 Start new measurement - hannel - when set, start new 0 Start new measurement - hannel - when set, start new 04 eset ounter, hannel 0 - a positive edge on this bit resets counter 0 05 eset ounter, hannel 0- a positive edge on this bit resets counter 06 eset ounter, hannel - a positive edge on this bit resets counter 07 eset ounter, hannel - a positive edge on this bit resets counter 08-5 eserved for factory use escription of ontrol Word eadback it escription 00 Positive edge - hannel 0 - measurement ready 0 Positive edge - hannel - measurement ready 0 Positive edge - hannel - measurement ready 0 Positive edge - hannel - measurement ready 04 eset ounter, hannel 0 - a positive edge on this bit indicates counter 0 05 eset ounter, hannel - a positive edge on this bit indicates counter 06 eset ounter, hannel - a positive edge on this bit indicates counter 07 eset ounter, hannel - a positive edge on this bit indicates counter 08-5 eserved for factory use o not enable the filter with frequencies greater than 90kHz. A loss of counts may result. escription of ontrol Word it escription 00 lock Frequency for period time measurement - hannel 0 0 = period time measurement with 0Hz internal clock selected = period time measurement with Hz internal clock selected umber of periods for measurement - hannel period 0 0 period period 0 8 period period 0 period 0 64 period 8 period 04 lock frequency for period time measurement - hannel - refer to bit Selection of number of periods for measurement - hannel - see bits lock frequency for period time measurement - hannel - refer to bit Selection of number of periods for measurement - hannel - see bits 0-0 lock frequency for period time measurement - hannel - refer to bit 00-5 Selection of number of periods for measurement - hannel - see bits 0-0 Publication 794-I064-E-P - arch 005

5 5 Specifications Specifications umber of Inputs 4 odule Location imensions (with module installed in base) Imperial etric ounting Frequency Input ange Input O Input OFF Input urrent (typical) ata Format Pulse ounter odule, at. o. 794-IP4 at. o. 794-T, -T, -TS, -T.7H x.7w x.7 inches 94H x 94W x 69 mm 00kHz maximum - Each signal condition must be stable for at least µs to be recognized 6.4V dc (4V dc +0%) maximum 6V dc minimum V dc maximum -6.4V dc minimum 6V dc V dc 4V dc Period read in µs counts with Hz internal clock selected; 0.µs counts when 0 Hz internal clock selected. Overflow aximum period is 65 ms when Hz internal clock selected; maximum period = 6.5 ms when 0 Hz internal clock selected Isolation Voltage Tested at 600V ac for s Flexbus urrent 5mA at 5V dc Power Supply (external)...4v dc (+0%) urrent onsumption from external power supply Power issipation Thermal issipation Indicators (field side indication, customer device driven) Keyswitch Position Environmental onditions Operating Temperature Storage Temperature elative Humidity Vibration Shock V dc 4V dc 5W 6.4V dc 7. TU/hr 6.4V dc green/red power/status indicator 8 yellow status indicators IE (Test Ad, Operating old), IE (Test d, Operating ry Heat), IE (Test b, Operating Thermal Shock): 0 to 55 ( to F) IE (Test Ab, Unpackaged onoperating old), IE (Test b, Unpackaged onoperating ry Heat), IE (Test a, Unpackaged onoperating Thermal Shock): 40 to 85 ( 40 to 85 F) IE (Test b, Unpackaged onoperating amp Heat): 5 to 95% non-condensing IE (Test Fc, Operating): 0-500Hz IE (Test Ea, Unpackaged shock): Operating 0g on-operating 50g Emissions ISP : Group, lass A (with appropriate enclosure) ES Immunity IE : 4kV contact discharges 8kV air discharges adiated F Immunity IE : 0V/m with khz sine-wave 80%A from 80Hz to 000Hz EFT/ Immunity IE : ±kv at 5kHz on signal ports Surge Transient Immunity onducted F Immunity Enclosure Type ating onductors Wire Length (maximum) ategory ertification (when product is marked) IE : ±kv line-earth() on shielded ports IE : 0Vrms with khz sine-wave 80%A from 50kHz to 80Hz one (open-style) elden ft (04.8m) -UL-US UL Listed Industrial ontrol Equipment, certified for US and anada -UL-US UL Listed for lass I, ivision, Groups A,, and Hazardous locations certified for US and anada E European Union 89/6/EE E irective, compliant with: E ; Industrial Emissions E ; Industrial Immunity E 66; eas./ontrol/lab., Industrial equirements E 5008-; Industrial Immunity -Tick - Australian adiocommunications Act compliant with AS/ZS ISP, Industrial Emissions Input off-to-on filter time is the time from a valid input signal to recognition by the module. Input on-to-off filter time is time from the input signal dropping below the valid level to recognition by the module. You use this category information for planning conductor routing. efer to Allen-radley publication , Industrial Automation Wiring and Grounding Guidelines. For the latest up-to-date information, see the Product ertification link at for eclarations of onformity, ertificates and other certification details. For notification of any additional release notes, refer to Publication 794-I064-E-P - arch 005

6 Publication 794-I064-E-P - arch P Supersedes 794-I064-E-P - August 00 opyright 005 ockwell Automation, Inc. All rights reserved. Printed in the U.S.A.