Installation Instructions POINT I/O Synchronous Serial Interface Absolute Encoder Module Catalog number 1734-SSI, Series C Table of Contents Topic Page Important User Information 2 Environment and Enclosure 3 Preventing Electrostatic Discharge 3 North American Hazardous Location Approval 4 European Hazardous Location Approval 5 Additional Resources 6 About the Module 6 Install the Mounting Base 8 Install the Module 9 Install the Removable Terminal Block 10 Remove a Mounting Base 10
POINT I/O Synchronous Serial Interface Absolute Encoder Module 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://www.rockwellautomation.
POINT I/O Synchronous Serial Interface Absolute Encoder Module 3 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 60664-1), at altitudes up to 2000 m (6562 ft) without derating. This equipment is not intended for use in residential environments and may not provide adequate protection to radio communication services in such environments.
POINT I/O Synchronous Serial Interface Absolute Encoder Module 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.
POINT I/O Synchronous Serial Interface Absolute Encoder Module 5 European Hazardous Location Approval European Zone 2 Certification. The following applies when the product bears the Ex Marking. This equipment is intended for use in potentially explosive atmospheres as defined by European Union Directive 94/9/EC.
POINT I/O Synchronous Serial Interface Absolute Encoder Module Additional Resources Refer to POINT™ I/O 5V and 24V Encoder/Counter Modules User Manual, publication 1734-UM006, as needed. If you would like a manual, you can: • download a free electronic version from the internet: http://www.rockwellautomation.com/literature/ • purchase a printed manual by contacting your local Allen-Bradley distributor or Rockwell Automation representative.
POINT I/O Synchronous Serial Interface Absolute Encoder Module 7 POINT I/O Synchronous Serial Interface Absolute Encoder Module : DE NO 1 6 34 17 SI S 2 7 8 3 4 9 5 10 The wiring base assembly includes a terminal base, 1734-TB or 1734-TBS, which consists of a mounting base, 1734-MB, and removable terminal block, 1734-RT or 1734-RTS.
POINT I/O Synchronous Serial Interface Absolute Encoder Module Install the Mounting Base To install the mounting base on the DIN rail, proceed as follows: ATTENTION: This product is grounded through the DIN rail to chassis ground. Use zinc plated yellow-chromate steel DIN rail to assure proper grounding. The use of other DIN rail materials (for example, aluminum or plastic) that can corrode, oxidize, or are poor conductors, can result in improper or intermittent grounding.
POINT I/O Synchronous Serial Interface Absolute Encoder Module 9 Install the Module The module can be installed before or after base installation. Make sure that the mounting base is correctly keyed before installing the module into the mounting base. In addition, make sure the mounting base locking screw is positioned horizontal referenced to the base. 1.
POINT I/O Synchronous Serial Interface Absolute Encoder Module Install the Removable Terminal Block A removable terminal block (RTB) is supplied with your wiring base assembly. To remove, pull up on the RTB handle. This allows the mounting base to be removed and replaced as necessary without removing any of the wiring. To reinsert the removable terminal block, proceed as follows: 1. Insert the end opposite the handle into the base unit. This end has a curved section that engages with the wiring base. 2.
POINT I/O Synchronous Serial Interface Absolute Encoder Module 11 Wire the Modules To wire the modules, refer to the diagrams and tables.
POINT I/O Synchronous Serial Interface Absolute Encoder Module Wiring for 1734-SSI 0 Termination Definition(1) 1 D+ D- 2 3 V+ V- 4 5 Shield I1 6 7 C+ C- D = Data, I1 = Digital, Sourcing Input 1, C = Clock, V = SSI Sensor 0 D+ 1 D- 2 V+ 3 V- 4 Shield 5 I1 6 C+ 7 C- (1) D and C terminations are RS422-type differential pairs. Communicate with Your Module The module transmits SSI sensor data over the DeviceNet network.
POINT I/O Synchronous Serial Interface Absolute Encoder Module 13 Consume and Produce Bit/Byte Definitions Byte Bit Produce 0 0…7 Low byte of present low SSI word. Bit 0 is the least significant bit of the entire present SSI word. Produce 1 0…7 High byte of present low SSI word. Produce 2 0…7 Low byte of present high SSI word. Produce 3 0…7 High byte of present high SSI word. Bit 7 is the most significant bit of the entire present SSI word. Produce 4 0…7 Low byte of stored low SSI word.
POINT I/O Synchronous Serial Interface Absolute Encoder Module Interpret Status Indicators Refer to the following diagram and tables for information on how to interpret the status indicators.
POINT I/O Synchronous Serial Interface Absolute Encoder Module 15 Indicator Status for Modules Module status Status Description Off No power applied to device. Green Device operating normally. Flashing green Device needs commissioning due to missing, incomplete, or incorrect configuration. Flashing red Recoverable fault. Red Unrecoverable fault – may require device replacement. Flashing red/green Device is in self-test mode.
POINT I/O Synchronous Serial Interface Absolute Encoder Module Specifications POINT I/O Synchronous Serial Interface Absolute Encoder Module – 1734-SSI, Series C Attribute Value Number of SSI channels 1 Encoder type Any absolute encoder supporting standard SSI protocol including linear, rotary, and optical distance measuring devices Most-Significant Bit Aligned data format Physical interface for clock and data signals is RS-422 SSI data rate 125 kHz, 250 kHz, 500 kHz, 1 MHz, 2 MHz (software selec
POINT I/O Synchronous Serial Interface Absolute Encoder Module 17 POINT I/O Synchronous Serial Interface Absolute Encoder Module – 1734-SSI, Series C Attribute Input impedance Input filter time Value - 3.6 kΩ 4.7 kΩ - 0.5 ms - *FPV = Field power supply voltage (1) Time between successive SSI words (Tp). Also called Dwell Time. (2) Roughly corresponds to the maximum time the SSI sensor can be expected to output a particular position value while in motion.
POINT I/O Synchronous Serial Interface Absolute Encoder Module General Specifications Attribute Value Enclosure type rating None (open-style) North American temp code T4A IEC temperature code T4 (1) Use this conductor category information for planning conductor routing as described in Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1.
POINT I/O Synchronous Serial Interface Absolute Encoder Module 19 Environmental Specifications Attribute Value EFT/B immunity IEC 61000-4-4: ±3 kV @ 5 kHz on signal ports Surge transient immunity IEC 61000-4-5: ±1 kV line-line (DM) and ±2 kV line-earth (CM) on signal ports ±2 kV line-earth (CM) on shielded ports Conducted RF immunity IEC61000-4-6: 10 V rms with 1 kHz sine-wave 80% AM from 150 kHz…80 MHz Certifications Certification (when product is marked)(1) Value c-UL-us UL Listed Industrial
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