Allen-Bradley High Speed Analog Installation Instructions
Allen-Bradley High Speed Analog output module is designed for industrial applications and offers a variety of features that make it an ideal choice for a wide range of applications. It is a reliable and versatile module that can be used to control various processes.
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Installation Instructions (Catalog Number 1897-NOV) Contents Use this document as a guide when installing the 1897-NOV output module. To Prevent Electrostatic Discharge Understand Compliance to European Union Directives Calculate Power Requirements Determine Module Placement See page Below 2 2 3 Install the Module and Remote Termination Panel 3 Key the Backplane Connector 4 Connect the Wiring to the Module 4 Connect Wiring to the Remote Termination Panel 5 Connect Cables to the Remote Termination Panel 5 Grounding Your Field Devices 7 Configuring Your Output Module 7 Reading Data from Your Output Module 9 For this reference information Troubleshooting with the Indicators UL/CSA Hazardous Location Approval Specifications Prevent Electrostatic Discharge See page 10 11 12 The analog output module is sensitive to electrostatic discharge. ! ATTENTION: Electrostatic discharge can damage integrated circuits or semiconductors if you touch backplane connector pins. Follow these guidelines when you handle the module: • Touch a grounded object to discharge static potential • Wear an approved wrist-strap grounding device • Do not touch the backplane connector or connector pins • Do not touch circuit components inside the module • If available, use a static-safe work station • When not in use, keep the module in its static-shield box Publication CIG-5.1 – April 1998 2 Fast Isolated Analog Output Module Understand Compliance to European Union Directives If this product has the CE mark it is approved for installation within the European Union and EEA regions. It has been designed and tested to meet the following directives. EMC Directive This product is tested to meet Council Directive 89/336/EEC Electromagnetic Compatibility (EMC) and the following standards, in whole or in part, documented in a technical construction file: • EN 50081-2EMC – Generic Emission Standard, Part 2 – Industrial Environment • EN 50082-2EMC – Generic Immunity Standard, Part 2 – Industrial Environment This product is intended for use in an industrial environment. Low Voltage Directive This product is tested to meet Council Directive 73/23/EEC Low Voltage, by applying the safety requirements of EN 61131–2 Programmable Controllers, Part 2 – Equipment Requirements and Tests. For specific information required by EN 61131-2, see the appropriate sections in this publication, as well as these Allen-Bradley publications: Publication Publication number Industrial Automation Wiring and Grounding Guidelines For Noise Immunity 1770-4.1 Guidelines for Handling Lithium Batteries AG-5.4 Automation Systems Catalog B111 This equipment is classified as open equipment and must be mounted in an enclosure during operation to provide safety protection. Calculate Power Requirements The module receives its power through the 1771 I/O power supply and requires 2A from the backplane. Add this current to the requirements of all other modules in the I/O chassis to prevent overloading the chassis backplane and/or backplane power supply. Publication CIG-5.1 – April 1998 Fast Isolated Analog Output Module Determine Module Placement in the I/O Chassis 3 Place your module in any I/O module slot of the I/O chassis except for the extreme left slot. This slot is reserved for PC processors or adapter modules. ! ATTENTION: Do not insert or remove modules from the I/O chassis while system power is ON. Failure to observe this rule could result in damage to module circuitry. Group your modules to minimize adverse affects from radiated electrical noise and heat. We recommend the following. • Group analog input and low voltage dc modules away from ac modules or high voltage dc modules to minimize electrical noise interference. • Do not place this module in the same I/O group with a discrete high-density I/O module when using 2-slot addressing. Install the Module and the Remote Termination Panel ! ATTENTION: Remove power from the 1771 I/O chassis backplane and field wiring arm before removing or installing an I/O module. • Failure to remove power from the backplane or wiring arm could cause module damage, degradation of performance, or injury. • Failure to remove power from the backplane could cause injury or equipment damage due to possible unexpected operation. 1 Place the module in the card guides on the top and bottom of the chassis that guide the module into position. Important: Apply firm even pressure on the module to seat it into its backplane connector. 1771-A1B, -A2B, -A3B, -A3B1, -A4B I/O chassis 1771-A1B, -A2B, -A3B1, -A4B Series B I/O chassis Snap the chassis latch over the top of the module to secure it. Swing the chassis locking bar down into place to secure the modules. Make sure the locking pins engage. Publication CIG-5.1 – April 1998 4 Fast Isolated Analog Output Module 2 Key the Backplane Connector Place your module in any slot in the chassis except the leftmost slot which is reserved for processors or adapters. Position the keying bands in the backplane connectors to correspond to the key slots on the module. I/O chassis Place the keying bands: between 26 and 28 between 32 and 34 You can change the position of these bands if subsequent system design and rewiring makes insertion of a different type of module necessary. Upper Connector 11022-I 3 Module End of 1771-NC cable Connect the Cable to the Module 1. Slide the locking bar up. 2. Insert the cable connector into the mating connector on the front of the module. 3. Slide the locking bar down over the mating pins on the module to lock the connector onto the module. Cable Connector Module Connector Locking bar 11023-I Publication CIG-5.1 – April 1998 Fast Isolated Analog Output Module 4 Connect Wiring to the Remote 5 Remote Termination Panel (RTP) Termination Panel The 1897-NOV module is cable-connected to a 1771-RTP4 remote termination panel using cat. no. 1771-NC6 (6 ft) or -NC15 (15 ft) cables. This RTP has straight-through wiring. The remote termination panel mounts on standard DIN 1 or DIN 3 mounting rails. Each channel has four connections: R, I, O, and S. Field wiring to the RTP is the same for all RTP variations. Channel 1 uses R1, I1, O1, and S1; channel 2 uses R2, I2, O2, and S2; and so on for the remaining channels. 1. Strip 3/8 inch (9.25 mm) of insulation from the 22-12 AWG wire. I = input 2. Insert the wire into the open connector slot. R = return 3. Tighten the screw to clamp the wire. Output Type Connect To + O1 Output - R1 Return Shield S1 Shield Field Wiring Voltage O = output S = shield channel 2 5 Connect the Cables to the Remote Termination Panel 1. Insert the RTP end of the cable into the connector on the the RTP. 2. Alternately tighten the retaining screws into the connector on the RTP until secure. Example: channel 1 Channel 1 Connections R1 = Return 1 I1 = Input 1 O1 = Output 1 S1 = Shield 1 RTP End of 1771-NC cable 19621 Note: Terminals W1, W2 and W3 are spares. Do not use terminals CR and CL. RTP4 DIN R Screw 11024-I Publication CIG-5.1 – April 1998 6 Fast Isolated Analog Output Module Remote Termination Panel Dimensions RTP4 B A Dimensions back of DIN rail 3.0 (75.0) J8 J7 J6 J5 J1 J2 J3 J4 2.3 (58.4) 5.30 (134.6) 2.3 (58.4) Inches (Millimeters) 1 Building Your Own Cables You can terminate the analog module to a terminal block by cutting the 25-pin RTP end connector off the standard cable and wiring to your terminal block. Refer to the following table for wire termination designations. Wire Termination Designations Module Top Connector Channel Number 1 2 3 4 Module Bottom Connector Signal 37-Pin Connector Wire Color I1 20 Blk O1 22 Blk/Wht R1 21 I2 Channel Number Signal 37-Pin Connector Wire Color I5 20 Blk O5 22 Blk/Wht Wht/Blk R5 21 Wht/Blk 24 Orn I6 24 Orn O2 26 Orn/Blk O6 26 Orn/Blk R2 25 Wht R6 25 Wht I3 29 Grn I7 29 Grn O3 31 Grn/Blk O7 31 Grn/Blk R3 30 Grn/Wht R7 30 Grn/Wht I4 33 Blu I8 33 Blu O4 35 Blu/Blk O8 35 Blu/Blk R4 34 Blu/Wht R8 34 Blu/Wht 36 Red 37 Red/Wht 5 6 7 8 Not used Publication CIG-5.1 – April 1998 Fast Isolated Analog Output Module Grounding Your Field Devices 7 When using shielded cable, ground the foil shield and drain wire only at one end of the cable. We recommend that you wrap the foil shield and drain wire together and connect them to the “S” connection on the RTP for the particular channel. All shield connections are internally connected together in the RTP so that only one wire is required to ground the entire remote termination panel. Connect a wire from the “SH” connection on the RTP to a ground stud on the metal cabinet in which the remote termination panel is mounted. If you do not want to ground a particular shield at the RTP, you can remove the jumper for that particular channel. This will allow the shield to float at the RTP end. To remove a jumper, you must cut it out. Once the jumper is removed it cannot be replaced. Clip as close to the circuit board as possible at both ends to completely remove it. The jumpers are labeled J1 through J8, corresponding to channels 1 through 8 respectively. Jumpers for channels 5 through 8 J8 J7 J6 J5 J1 J2 J3 J4 Jumpers for channels 1 through 4 Refer to publication 1770-4.1, Programmable Controller Wiring and Grounding Guidelines, for additional information. Communicating with Your Output Module The 1897–NOV module uses digital data transfers for backplane data transfer. Configure your module as a double density module (1 slot addressing). Address all channels individually. The module uses channel 8 as a trigger to synchronize data transfer to the module’s digital-to-analog converters (DACs). All DACs are updated following a write of data to channel 8. This update occurs regardless of whether data changed on any other channel. When any channel other than channel 8 is written to, the data is parsed and stored internally, but the DAC is not updated until a channel 8 write is completed. The status of which channel(s) change (and, as a result, modify the analog outputs on the module on the next trigger event) is reflected in the digital input image table. The least significant byte of the digital input word will indicate the updated channel(s). If the input bit is 1 (high), on the next trigger event, the analog output value associated with that channel changes. Publication CIG-5.1 – April 1998 8 Fast Isolated Analog Output Module Output Image Definition The digital output data resides in the modules Rack/Group/Slot location in the programmable controller output image table. The format of the 16-bit data word written to the module over the backplane is: Dec. Bits 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Octal Bits 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Sign Ch ID 2 Ch ID 1 Ch ID 0 Data MSB Data word Data LSB The data word is a 12 bit analog value: –4095 through 4095 – corresponding to –10.7V through 10.7V. Bits 12,13,14 represent the number of the channel which is to receive this data: ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ Decimal Bit 14 Bit 13 Bit 12 Octal Bit 16 Bit 15 Bit 14 Channel Nu be Number 0 0 0 1 0 0 1 2 0 1 0 3 0 1 1 4 1 0 0 5 1 0 1 6 1 1 0 7 1 1 1 8 The bit pattern is MASKED onto the data in the ladder program. The following ladder rung is an example of how to accomplish this masking: Program Action To set a single channel ’immediately’ on the NOV. N7:0 –> Channel number to be updated: 0 through 7. N7:1 –> Analog value to be set –4095 through 4095. MOV MOVE SOURCE DESTINATION CONTROL: NOTE 1: Analog value must be set first, then masked by the channel data. BTD BIT FIELD DISTRIB NOTE 2: The channel and analog data must be present (in the same scan, prior to this rung) when this rung is executed in order for the correct channel to get the data. SOURCE SOURCE BIT DESTINATION DESTINATION BIT LENGTH N7:1 1000 O:002 29672 N12:50 N7:0 7 0 O:002 29672 12 3 002 IOT Publication CIG-5.1 – April 1998 Fast Isolated Analog Output Module Reading Data from Your Module 9 The digital status data resides in the modules Rack/Group/Slot location in the programmable controller input image table. The following table shows the format of the 16 bit data word read from the module over the backplane: Input Data Definition Dec. Bits 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Octal Bits 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Module Reset DAC update in progress Word 1 Not used Word Channel “Armed” Bit Description Bits 00–07 Channel “Armed” – set when the channel has an output which is going to change the next time that trigger event occurs. Bit 00 corresponds to channel 1, bit 01 corresponds to channel 2, and so on. Bit 08 DAC update in progress – set when the module is busy updating the DAC’s Bit 09 Module in Reset – set when the I/O Reset line is asserted indicating that all channels have been zeroed (including all pending changes) Bits 10–15 Not used NOTE: If a channel output value is changed, that value (which is different from the current state of the output) is written to the “pending output” buffer. The corresponding “channel armed” bit will then be set. If you change that channel value back to the current output value without a trigger event, the “channel armed” bit will still be set. Interpreting the Indicator Lights The front panel of the analog module contains two bi-color indicators: a red/green RUN/FLT (fault) indicator and a red/green CAL/COM indicator. The CAL/COM indicator is not used on this module. RUN/FLT Run/Fault indicator. This indicator will flash green until the diagnostic test is completed at power up.. If a fault is found initially or occurs later, the RUN/FLT indicator turns red. CAL/COM Not used 10528-I Publication CIG-5.1 – April 1998 10 Fast Isolated Analog Output Module At power-up, an initial module self-check occurs. The module checks: • correct RAM operation • EPROM operation • EEPROM operation The RUN/FAULT indicator will be green when the check is completed satisfactorily. It will flash green until the first valid block transfer write has been received. If a fault is found initially or occurs later, the RUN/FLT indicator turns red. After passing initial diagnostics, the module turns the RUN/FLT indicator to flashing green. The indicator will turn red if a fault is detected. Troubleshooting with the Indicators Indication The following table shows indications, probable causes and recommended actions to correct common faults which may occur. Probable Cause Recommended Action No power to module Check power to I/O chassis. Recycle as necessary. Possible short on the module LED driver failure Replace module. Microprocessor, oscillator or EPROM failure Replace module. If immediately after power–up, indicates RAM or EPROM failure. Replace module. If during operation, indicates possible microprocessor or backplane interface failure. Replace module. RUN/FLT indicator is flashing green Power–up diagnostics successfully completed. Normal operation. RUN/FLT indicator is green but module data is wrong (for example, with cable off, input channel data values are at minimum scale values) Internal fuse may be bad Replace module Bot indicators in icator are ar OFF Both RUN/FLT indicator ON red Publication CIG-5.1 – April 1998 Fast Isolated Analog Output Module 11 CSA Hazardous Location Approval Approbation d’utilisation dans des emplacements dangereux par la CSA CSA certifies products for general use as well as for use in hazardous locations. Actual CSA certification is indicated by the product label as shown below, and not by statements in any user documentation. La CSA certifie les produits d’utilisation générale aussi bien que ceux qui s’utilisent dans des emplacements dangereux. La certification CSA en vigueur est indiquée par l’étiquette du produit et non par des affirmations dans la documentation à l’usage des utilisateurs. Example of the CSA certification product label Exemple d’étiquette de certification d’un produit par la CSA To comply with CSA certification for use in hazardous locations, the following information becomes a part of the product literature for CSA-certified Allen-Bradley industrial control products. • This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D, or non-hazardous locations only. • The products having the appropriate CSA markings (that is, Class I Division 2, Groups A, B, C, D), are certified for use in other equipment where the suitability of combination (that is, application or use) is determined by the CSA or the local inspection office having jurisdiction. Pour satisfaire à la certification de la CSA dans des endroits dangereux, les informations suivantes font partie intégrante de la documentation des produits industriels de contrôle Allen-Bradley certifiés par la CSA. • Cet équipement convient à l’utilisation dans des emplacements de Classe 1, Division 2, Groupes A, B, C, D, ou ne convient qu’à l’utilisation dans des endroits non dangereux. • Les produits portant le marquage approprié de la CSA (c’est à dire, Classe 1, Division 2, Groupes A, B, C, D) sont certifiés à l’utilisation pour d’autres équipements où la convenance de combinaison (application ou utilisation) est déterminée par la CSA ou le bureau local d’inspection qualifié. Important: Due to the modular nature of a PLC control system, the product with the highest temperature rating determines the overall temperature code rating of a PLC control system in a Class I, Division 2 location. The temperature code rating is marked on the product label as shown. Important: Par suite de la nature modulaire du système de contrôle PLC, le produit ayant le taux le plus élevé de température détermine le taux d’ensemble du code de température du système de contrôle d’un PLC dans un emplacement de Classe 1, Division 2. Le taux du code de température est indiqué sur l’étiquette du produit. Temperature code rating Taux du code de température Look for temperature code rating here The following warnings apply to products having CSA certification for use in hazardous locations. ! ATTENTION: Explosion hazard — • Substitution of components may impair suitability for Class I, Division 2. • Do not replace components unless power has been switched off or the area is known to be non-hazardous. • Do not disconnect equipment unless power has been switched off or the area is known to be non-hazardous. • Do not disconnect connectors unless power has been switched off or the area is known to be non-hazardous. Secure any user-supplied connectors that mate to external circuits on an Allen-Bradley product using screws, sliding latches, threaded connectors, or other means such that any connection can withstand a 15 Newton (3.4 lb.) separating force applied for a minimum of one minute. Le taux du code de température est indiqué ici Les avertissements suivants s’appliquent aux produits ayant la certification CSA pour leur utilisation dans des emplacements dangereux. ! AVERTISSEMENT: Risque d’explosion — • La substitution de composants peut rendre ce matériel inacceptable pour lesemplacements de Classe I, Division 2. • Couper le courant ou s’assurer quel’emplacement est désigné non dangereux avant de remplacer lescomposants. • Avant de débrancher l’équipement, couper le courant ou s’assurer que l’emplacement est désigné non dangereux. • Avant de débrancher les connecteurs, couper le courant ou s’assurer que l’emplacement est reconnu non dangereux. Attacher tous connecteurs fournis par l’utilisateur et reliés aux circuits externes d’un appareil Allen-Bradley à l ’aide de vis, loquets coulissants, connecteurs filetés ou autres moyens permettant aux connexions de résister à une force de séparation de 15 newtons (3,4 lb. - 1,5 kg) appliquée pendant au moins une minute. Le sigle CSA est la marque déposée de l’Association des Standards pour le Canada. PLC est une marque déposée de Allen-Bradley Company, Inc. CSA logo is a registered trademark of the Canadian Standards Association PLC is a registered trademark of Allen-Bradley Company, Inc. Publication CIG-5.1 – April 1998 12 Fast Isolated Analog Output Module Specifications 1897-NOV Fast Isolated Analog Voltage Output Module Number of Channels (depends on specific module) 8 individually isolated I/O Chassis Location any single I/O module slot D/A Resolution 12 bits or 13 bits plus sign bit Isolation Voltage Designed to withstand 1000V dc continuous between input and output channels and between input and backplane connections. Modules are 100% tested at 1200V dc for 1 second between input channels and backplane connections. Backplane Current 2.0A Maximum Power Dissipation 10.0W @ 5V Output Range Output Impedance Output Drive Capability Output Overvoltage Protection Offset Drift Gain Drift Accuracy with Calibration (Including Non-linearity, Gain, and Offset) +10.4V into an open circuit 1.0Ω maximum 1KΩ or larger (10mA maximum) 140V ac rms continuous ±400 µV/°C ±50 ppm/oC 0.01% of full range @ 25oC Typical 0.08% of full range @ 25oC Worst Case Environmental Conditions Operating Temperature Rate of Change Storage Temperature Relative Humidity – Operating Nonoperating 0 to 60oC (32 to 140oF) Ambient changes > 0.5oC per minute may temporarily degrade performance during periods of change. –40 to 85oC (–40 to 185oF) 5 to 95% (without condensation) ; 5 to 80% (without condensation) Connecting Cable(s) 1771-NC6 = 1.8m (6ft) 1771-NC15 = 4.6m (15ft) Keying Between 26 and 28 Between 32 and 34 Agency Certification (when product is marked) • CSA certified • CSA Class I, Division 2, Groups A, B, C, D certified • UL listed • CE marked for all applicable directives Allen-Bradley, a Rockwell Automation Business, has been helping its customers improve productivity and quality for more than 90 years. We design, manufacture and support a broad range of automation products worldwide. They include logic processors, power and motion control devices, operator interfaces, sensors and a variety of software. Rockwell is one of the world’s leading technology companies. Worldwide representation. Argentina • Australia • Austria • Bahrain • Belgium • Brazil • Bulgaria • Canada • Chile • China, PRC • Colombia • Costa Rica • Croatia • Cyprus • Czech Republic • Denmark • Ecuador • Egypt • El Salvador • Finland • France • Germany • Greece • Guatemala • Honduras • Hong Kong • Hungary • Iceland • India • Indonesia • Ireland • Israel • Italy • Jamaica • Japan • Jordan • Korea • Kuwait • Lebanon • Malaysia • Mexico • Netherlands • New Zealand • Norway • Pakistan • Peru • Philippines • Poland • Portugal • Puerto Rico • Qatar • Romania • Russia–CIS • Saudi Arabia • Singapore • Slovakia • Slovenia • South Africa, Republic • Spain • Sweden • Switzerland • Taiwan • Thailand • Turkey • United Arab Emirates • United Kingdom • United States • Uruguay • Venezuela • Yugoslavia Allen-Bradley Headquarters, 1201 South Second Street, Milwaukee, WI 53204 USA, Tel: (1) 414 382-2000 Fax: (1) 414 382-4444 Publication CIG-5.1 – April 1998 Supersedes publication CIG-5.1 – September 1997 Publication CIG-5.1 – April 1998 PN955128–81 Copyright 1998 Allen-Bradley Company, Inc. 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Key features
- Isolated channels
- 12/13-bit resolution
- High output drive
- Overvoltage protection
- DIN rail mount RTP
- European Union directives compliance
- UL/CSA certification
Frequently asked questions
The module requires 2A of current from the 1771 I/O power supply.
Ground the foil shield and drain wire only at one end of the cable. Connect them to the “S” connection on the RTP for the particular channel. Connect a wire from the “SH” connection on the RTP to a ground stud.
The 1897-NOV module can be cable-connected to a 1771-RTP4 panel using either cat no. 1771-NC6 (6 ft) or -NC15 (15 ft) cables.