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ICSTT-RM294E-EN-P (PD-T8833) 

Trusted 

Rockwell Automation Publication ICSTT-RM294E-EN-P 

Issue 5 

Trusted 20 Channel Isolated AI/DI FTA Loop 

Powered 

Product Overview 

The Trusted® 20 Channel Isolated Analogue Input/Digital Input (AI/DI) Field Termination Assembly 
(FTA), Part Number: T8833, is designed to act as the main interface between a field device 
generating a 4 20 mA signal and the Isolated Analogue Input Module, Part Number: T8433. 

Features: 

 

20 isolated input channels per FTA. 

 

Standard DIN rail compatibility. 

 

Simple installation and connection. 

 

Loop powered operation. 

 

 

Summary of Contents for Trusted T8833

Page 1: ...nnel Isolated Analogue Input Digital Input AI DI Field Termination Assembly FTA Part Number T8833 is designed to act as the main interface between a field device generating a 4 20 mA signal and the Isolated Analogue Input Module Part Number T8433 Features 20 isolated input channels per FTA Standard DIN rail compatibility Simple installation and connection Loop powered operation ...

Page 2: ...Trusted ICSTT RM294E EN P Rockwell Automation Publication ICSTT RM294E EN P Issue 5 Page intentionally left blank ...

Page 3: ...ction operation or maintenance of a control system installation You should also refer to your own local or supplied system safety manual installation and operator maintenance manuals REVISION AND UPDATING POLICY This document is based on information available at the time of its publication The document contents are subject to change from time to time The latest versions of the manuals are availabl...

Page 4: ...NT A login is required to access the link If you do not have an account then you can create one using the Sign Up link at the top right of the web page DOCUMENTATION FEEDBACK Your comments help us to write better user documentation If you discover an error or have a suggestion on how to make this publication better send your comment to our technical support group at http rockwellautomation custhel...

Page 5: ...s that can cause an explosion in a hazardous environment which can cause injury or death property damage or economic loss ATTENTION Identifies information about practices or circumstances that can cause injury or death CAUTION Identifies information about practices or circumstances that can cause property damage or economic loss BURN HAZARD Identifies where a surface can reach dangerous temperatur...

Page 6: ...ammables ou équivalente MAINTENANCE Maintenance must be carried out only by qualified personnel Failure to follow these instructions may result in personal injury CAUTION RADIO FREQUENCY INTERFERENCE Most electronic equipment is influenced by Radio Frequency Interference Caution should be exercised with regard to the use of portable communications equipment around such equipment Signs should be po...

Page 7: ... Jun 16 Rebranded and updated to incorporate IEEE standards with correction of typographical errors and also standardise the Relative Humidity Range and Operating Temperature statements in the Specification Section 5 Dec 18 Updated Specifications table Updated graphics in various sections Updated header and footer to display Rockwell Automation publication number Added trademarks statement ...

Page 8: ...PREFACE Trusted 20 Channel Isolated AI DI FTA Loop Powered vi Issue 5 Rockwell Automation Publication ICSTT RM294E EN P Page intentionally left blank ...

Page 9: ...ble of Contents Rockwell Automation Publication ICSTT RM294E EN P Issue 5 1 Table of Contents 1 Description 3 2 Installation 5 3 Associated Cable Selection 7 4 Assembly Pinout Connections 9 4 1 CON1 Connections 9 4 2 TB1 Connections 11 5 Specifications 13 ...

Page 10: ...Table of Contents Trusted 20 Channel Isolated AI DI FTA Loop Powered 2 Issue 5 Rockwell Automation Publication ICSTT RM294E EN P Page intentionally left blank ...

Page 11: ...ingle channel Figure 2 Single Channel Schematic The FTA is configured so that the 4 20 mA field current loop signal connects to TB1 A and the loop return connects to TB1 B The current loop signal is then converted into a voltage by the circuit in Figure 2 This voltage is split into a 7 5 Vdc low current power supply to power the isolation amplifiers on the input module VPOWER and the precision 0 2...

Page 12: ...or linking the 20 channels on the input module to the FTA is terminated at CON1 which is a 96 way socket A row of screw terminal connectors TB1 are used to connect the field wiring Unused inputs should be terminated by wiring a 24 V supply via a resistor 2K or 2K2 to the A terminal and wiring the B terminal to the associated zero volts ...

Page 13: ...CSTT RM294E EN P Issue 5 5 2 Installation The Trusted 20 Channel Isolated AI DI FTA T8833 is designed to be mounted on either of the TS32 or TS35 DIN rails in the horizontal or vertical positions as required The location of the connectors on the FTA are shown in Figure 3 Figure 3 Connector Locations ...

Page 14: ...2 Installation Trusted 20 Channel Isolated AI DI FTA Loop Powered 6 Issue 5 Rockwell Automation Publication ICSTT RM294E EN P Page intentionally left blank ...

Page 15: ...N P Issue 5 7 3 Associated Cable Selection Refer to the Product Descriptions detailed below ICSTT RM314 PD TC600 Trusted I O SmartSlot Cables 60 Channel ICSTT RM315 PD TC700 Trusted I O Companion Slot Cables 60 Channel Note 60 channel cables are used for this FTA due to the three wire per channel connection to the input module ...

Page 16: ...3 Associated Cable Selection Trusted 20 Channel Isolated AI DI FTA Loop Powered 8 Issue 5 Rockwell Automation Publication ICSTT RM294E EN P Page intentionally left blank ...

Page 17: ..._VSENSE 5 CH3_VPOWER CH3_COMMON CH3_VSENSE 6 CH4_VPOWER CH4_COMMON CH4_VSENSE 7 CH5_VPOWER CH5_COMMON CH5_VSENSE 8 CH6_VPOWER CH6_COMMON CH6_VSENSE 9 CH7_VPOWER CH7_COMMON CH7_VSENSE 10 CH8_VPOWER CH8_COMMON CH8_VSENSE 11 CH9_VPOWER CH9_COMMON CH9_VSENSE 12 CH10_VPOWER CH10_COMMON CH10_VSENSE 13 CH11_VPOWER CH11_COMMON CH11_VSENSE 14 CH12_VPOWER CH12_COMMON CH12_VSENSE 15 CH13_VPOWER CH13_COMMON C...

Page 18: ... ICSTT RM294E EN P Pin Row A B C 20 CH18_VPOWER CH18_COMMON CH18_VSENSE 21 CH19_VPOWER CH19_COMMON CH19_VSENSE 22 CH20_VPOWER CH20_COMMON CH20_VSENSE 23 N C N C N C 24 N C N C N C 25 N C N C N C 26 N C N C N C 27 N C N C N C 28 N C N C N C 29 N C N C N C 30 N C N C N C 31 N C N C N C 32 N C N C N C Table 1 CON1 Connections ...

Page 19: ...ions are detailed below Pin Service Pin Service 1 CH1_A 21 CH11_A 2 CH1_B 22 CH11_B 3 CH2_A 23 CH12_A 4 CH2_B 24 CH12_B 5 CH3_A 25 CH13_A 6 CH3_B 26 CH13_B 7 CH4_A 27 CH14_A 8 CH4_B 28 CH14_B 9 CH5_A 29 CH15_A 10 CH5_B 30 CH15_B 11 CH6_A 31 CH16_A 12 CH6_B 32 CH16_B 13 CH7_A 33 CH17_A 14 CH7_B 34 CH17_B 15 CH8_A 35 CH18_A 16 CH8_B 36 CH18_B 17 CH9_A 37 CH19_A 18 CH9_B 38 CH19_B 19 CH10_A 39 CH20_A...

Page 20: ...4 Assembly Pinout Connections Trusted 20 Channel Isolated AI DI FTA Loop Powered 12 Issue 5 Rockwell Automation Publication ICSTT RM294E EN P Page intentionally left blank ...

Page 21: ... Basic fault 2 Type tested at 2436 Vdc for 60 s Field Current Loop Per Channel 2 mA to 30 mA Field Loop Volt Drop at 20 mA 9 5 V Operating Temperature 0 C to 60 C 32 F to 140 F Storage Temperature 20 C to 70 C 4 F to 158 F Relative Humidity Operating and Storage 10 95 non condensing Environmental Specifications Refer to Document ICSTT TD003 Dimensions Height 120 mm 4 72 in Width 336 mm 13 23 in De...

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