Rockwell Automation T8846 User Manual

TrustedTM

PD-T8846

Trusted

Speed Monitor IFTA (SIFTA)

Introduction

The Trusted provides the input field interface for three rotating machine groups when used as part of a Trusted T8442 TMR Speed Monitor system.

Features

• Provides all necessary input interfaces for a Trusted T8442 TMR Speed Monitor.

• Nine speed input channels arranged as three groups of three inputs.

Speed Monitor Input Field Termination Assembly (SIFTA) is a DIN rail assembly. It

• Separate field power inputs for each of the three speed input groups.

• Field power and signal isolation between input groups.

• Versatile input connectivity allows interfacing with:

• Active speed sensors with Totem-Pole outputs.

• Active speed sensors with open-Collector outputs.

• Passive magnetic, inductive speed sensors.

• Standard DIN Rail mounting.

• All Fuses can be replaced in situ.

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Issue Record

Issue

Number Date Revised by Technical CheckAuthorised by Modification

1 Sept 05 J W Clark Format

2 Apr 10 S. Blackett A. Holgate P. Stock Corrections to

Speed Monitor IFTA T8846

termination pin numbers

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Figure 1 T8846 Module Photo

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Table of Contents

1. Product Range ...............................................................................................................................8

2. Assembly........................................................................................................................................9

3. External Interfaces .......................................................................................................................10

.1.

3.2. Speed Monitor Interfaces .............................................................................................................12

3.3. Speed Inputs ................................................................................................................................15

4. Field Connection Arrangements...................................................................................................18

4.1. Active Totem Pole Output Sensor Types .....................................................................................18

4.1.1. Sensor Power Derived from FTA .................................................................................................18

4.1.2. Sensor Power Derived Externally ................................................................................................19

4.2. Active Open Collector Output Sensor Types ...............................................................................20

4.2.1. Sensor Power Derived From FTA ................................................................................................20

4.2.2. Sensor Power Derived Externally ................................................................................................21

ield Power Inputs........................................................................................................................11

4.3. Passive Output Sensor Types......................................................................................................22

4.4. Chassis Ground Connections ......................................................................................................23

5. Specifications ...............................................................................................................................24

5.1. Group VField Power Supply Input Specifications ........................................................................24

5.2. Group Speed Input Specifications................................................................................................24

5.3. General Specifications .................................................................................................................25

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Figures

Figure 1 T8846 Module Photo..................................................................................................................3

Figure 2 T8846 Speed Input Channel Overview ......................................................................................9

Figure 3 T8846 General Assembly – Top view and Front view .............................................................10

igure 4 Active Totem Pole Output Sensor Connections (FTA Derived Field Supply) ..........................18

Figure 5 Active Totem Pole Output Sensor (Externally Derived Field Supply) ......................................19

Figure 6 Active Open Collector Output Sensor (FTA Derived Field Supply) .........................................20

Figure 7 Active Open Collector Output (Externally Derived Field Supply).............................................21

Figure 8 Passive Output Sensor Connections .......................................................................................22

Figure 9 Chassis Ground Connections ..................................................................................................23

Tables

Table 1 T8442 TMR Speed Monitor Product Range ................................................................................8

Table 2 - Field Power Input Connections ...............................................................................................11

Table 3 Speed Monitor Interface Group 1 ..............................................................................................12

Table 4 Speed Monitor Interface Group 2 ..............................................................................................13

Table 5 Speed Monitor Interface Group 3 ..............................................................................................14

Table 6 Speed Input Connections ..........................................................................................................17

Table 7 Group VField Power Supply Input Specifications......................................................................24

Table 8 Group Speed Input Specifications.............................................................................................24

Table 9 General Specifications ..............................................................................................................25

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Notice

The content of this document is confidential to ICS Triplex Technology Ltd. companies and their partners. It may not be given away, lent, resold, hired out or made available to a third party for any purpose without the written consent of ICS Triplex Technology Ltd.

This document contains proprietary information that is protected by copyright. All rights are reserved.

Microsoft, Windows, Windows 95, Windows NT, Windows 2000, and Windows XP are registered trademarks of Microsoft Corporation.

The information contained in this document is subject to change without notice. The reader should, in all cases, consult ICS Triplex Technology Ltd. to determine whether any such changes have been made. From time to time, amendments to this document will be made as necessary and will be distributed by ICS Triplex Technology Ltd.

Information in this documentation set may be subject to change without notice and does not represent a commitment on the part of ICS Triplex Technology Ltd..

The contents of this document, which may also include the loan of software tools, are subject to the confidentiality and other clause(s) within the Integrator Agreement and Software License Agreement.

No part of this documentation may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose, without the express written permission of ICS Triplex Technology Ltd.

Disclaimer

The illustrations, figures, charts, and layout examples in this manual are intended solely to illustrate the text of this manual.

The user of, and those responsible for applying this equipment, must satisfy themselves as to the acceptability of each application and use of this equipment.

This document is based on information available at the time of its publication. While efforts have been made to be accurate, the information contained herein does not purport to cover all details or variations in hardware or software, nor to provide for every possible contingency in connection with installation, operation, or maintenance. Features may be described herein which are present in all hardware or software systems. ICS Triplex Technology Ltd. assumes no obligation of notice to holders of this document with respect to changes subsequently made.

ICS Triplex Technology Ltd. makes no representation or warranty, expressed, implied, or statutory with respect to, and assumes no responsibility for the accuracy, completeness, sufficiency, or usefulness of the information contained herein. No warranties of merchantability or fitness for purpose shall apply.

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Revision and Updating Policy

All new and revised information pertinent to this document shall be issued by ICS Triplex Technology Ltd. and shall be incorporated into this document in accordance with the enclosed instructions. The change is to be recorded on the Amendment Record of this document.

Precautionary Information

WARNING

Warning notices call attention to the use of materials, processes, methods, procedures or limits which must be followed precisely to avoid personal injury or death.

CAUTION

Caution notices call attention to methods and procedures which must be followed to avoid damage to the equipment.

Notes:

Notes highlight procedures and contain information to assist the user in the understanding of the information contained in this document

Warning

RADIO FREQUENCY INTERFERENCE

Most electronic equipment is influenced by Radio Frequency Interference (RFI). Caution should be exercised with regard to the use of portable communications equipment around such equipment. Signs should be posted in the vicinity of the equipment cautioning against the use of portable communications equipment.

MAINTENANCE

Maintenance must be performed only by qualified personnel, otherwise personal injury or death, or damage to the system may be caused.

Caution

HANDLING

Under no circumstances should the module housing be removed.

Associated Documents

Product Descriptions (PD) provide product specific information.

The Safety Manual contains the recommended safety requirements for the safety system design.

The PD8082B – Toolset Suite provides specific guidance on system configuration and application generation.

The Operator and Maintenance Manual contains general guidelines on maintenance and diagnostic procedures.

For technical support email: support@icstriplex.com

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1. Product Range

Catalogue No. Product name Description

T8442 TMR Speed

Monitor.

T8846 Speed Input FTA

(SIFTA)

T8891 Speed Output FTA

(SOFTA)

TC-801 I/O Companion

Slot, Speed Monitor to FTA (Internal )

Table 1 T8442 TMR Speed Monitor Product Range

Trusted TMR Speed Monitor Module.

Input field termination assembly for use with the T8442 TMR Speed Monitor.

Output field termination assembly for use with the T8442 TMR Speed Monitor.

Companion Slot I/O cable with internal power. This connects an active/standby hotswap pair of T8442 modules to a single SIFTA and up to three SOFTAs.

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2. Assembly

he T8846 Speed Input Field Termination Assembly (SIFTA) is an integral part of the overall T8442

T Speed monitor system. It is DIN rail mounted, containing passive signal conditioning, power distribution and protection components.

Each T8442 Speed Monitor Module hot swap pair requires a single T8846 SIFTA when installed in a Trusted

The SIFTA has nine identical speed transducer signal conditioning circuits arranged as three groups of three.

Each of the three groups is a galvanically isolated entity, with its own field power and I/O signal interfaces.

Multiple sensors must be employed for SIL3 applications.

system.

Figure 2 T8846 Speed Input Channel Overview

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3. External Interfaces

igure 3 shows the T8846 general assembly.

Figure 3 T8846 General Assembly – Top view and Front view

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3.1. Field Power Inputs

This section details the field power input connections for each speed monitor input group.

There are three 4 way connectors on the FTA which provide the field power interface to the FTA. Each connector is dedicated to one speed input group.

Refer to Figure 3 for the location of the interface sockets

Interface Pin Signal Name Description

SK1 A1 Group 1 Vfield A Input +24Vdc (A) Dual redundant power supply input for group 1 speed

inputs.

SK1 A2 Group 1 Vfield Return

Input

SK1 A3 Group 1 Vfield Return

Input

SK1 B1 Group 1 Vfield B Input +24Vdc (B) Dual redundant power supply input for group 1 speed

SK3 A1 Group 2 Vfield A Input +24Vdc (A) Dual redundant power supply input for group 2 speed

SK3 A2 Group 2 Vfield Return

Input

SK3 A3 Group 2 Vfield Return

Input

SK3 B1 Group 2 Vfield B Input +24Vdc (B) Dual redundant power supply input for group 2 speed

0V Vfield Power supply return for group 1 speed inputs.

inputs.

0V Vfield Power supply return for group 2 speed inputs.

inputs.

SK5 A1 Group 3 Vfield A Input +24Vdc (A) Dual redundant power supply input for group 3 speed

inputs.

SK5 A2 Group 3 Vfield Return

Input

SK5 A3 Group 3 Vfield Return

Input

SK5 B1 Group 3 Vfield B Input +24Vdc (B) Dual redundant power supply input for group 3 speed

0V Vfield Power supply return for group 3 speed inputs.

inputs.

Table 2 - Field Power Input Connections

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3.2. Speed Monitor Interfaces

This section details the interfaces between the T8846 SIFTA and the Trusted T8442 Speed Monitor. There are three 20 way connectors on the FTA which provide the interface to the Trusted T8442 Speed Monitor. Each connector is dedicated to one speed input group and mates directly with the Trusted TC-801 cable assembly.

Refer to Figure 3 for the location of the connectors.

Interface Pin Description

SK2 1 Group 1 VField (A) fused output

SK2 2 Group 1 VField (B) fused output

SK2 3 Not Connected

SK2 4 Group 1 Channel 1 MID Bias

SK2 5 Group 1 Channel 1 Passive (A) output

SK2 6 Group 1 0V (ground)

SK2 7 Group 1 Channel 1 Passive (B) output

SK2 8 Chassis Ground

SK2 9 Not Connected

SK2 10 Group 1 Channel 2 MID Bias

SK2 11 Group 1 Channel 2 Passive (A) output

SK2 12 Group 1 0V (ground)

SK2 13 Group 1 Channel 2 Passive (B) output

SK2 14 Chassis Ground

SK2 15 Not Connected

SK2 16 Group 1 Channel 3 MID Bias

SK2 17 Group 1 Channel 3 Passive (A) output

SK2 18 Group 1 0V (ground)

SK2 19 Group 1 Channel 3 Passive (B) output

SK2 20 Chassis Ground

Table 3 Speed Monitor Interface Group 1

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Interface Pin Description

SK4 1 Group 2 VField (A) fused output

SK4 2 Group 2 VField (B) fused output

SK4 3 Not Connected

SK4 4 Group 2 Channel 1 MID Bias

SK4 5 Group 2 Channel 1 Passive (A) output

SK4 6 Group 2 0V (ground)

SK4 7 Group 2 Channel 1 Passive (B) output

SK4 8 Chassis Ground

SK4 9 Not Connected

SK4 10 Group 2 Channel 2 MID Bias

SK4 11 Group 2 Channel 2 Passive (A) output

SK4 12 Group 2 0V (ground)

SK4 13 Group 2 Channel 2 Passive (B) output

SK4 14 Chassis Ground

SK4 15 Not Connected

SK4 16 Group 2 Channel 3 MID Bias

SK4 17 Group 2 Channel 3 Passive (A) output

SK4 18 Group 2 0V (ground)

SK4 19 Group 2 Channel 3 Passive (B) output

SK4 20 Chassis Ground

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Table 4 Speed Monitor Interface Group 2

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Interface Pin Description

SK6 1 Group 3 VField (A) fused output

SK6 2 Group 3 VField (B) fused output

SK6 3 Not Connected

SK6 4 Group 3 Channel 1 MID Bias

SK6 5 Group 3 Channel 1 Passive (A) output

SK6 6 Group 3 0V (ground)

SK6 7 Group 3 Channel 1 Passive (B) output

SK6 8 Chassis Ground

SK6 9 Not Connected

SK6 10 Group 3 Channel 2 MID Bias

SK6 11 Group 3 Channel 2 Passive (A) output

SK6 12 Group 3 0V (ground)

SK6 13 Group 3 Channel 2 Passive (B) output

SK6 14 Chassis Ground

SK6 15 Not Connected

SK6 16 Group 3 Channel 3 MID Bias

SK6 17 Group 3 Channel 3 Passive (A) output

SK6 18 Group 3 0V (ground)

SK6 19 Group 3 Channel 3 Passive (B) output

SK6 20 Chassis Ground

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Table 5 Speed Monitor Interface Group 3

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3.3. Speed Inputs

This section details the speed input terminal connections. These terminals are used to interface to the field sensor input cables.

Refer to Figure 3 for the location of the interface terminals.

Interface Terminal Description

SK7 A1 Group 1 Channel 1 Fused VField Output

SK7 A2 Group 1 Channel 1 Open Collector Input

SK7 A3 Group 1 0V (Ground)

SK7 B1 Group 1 Channel 1 Open Collector Loopback

SK7 B2 Group 1 Channel 1 Passive A Input (A duplicate input is also available on SK7

terminal 7)

SK7 B3 Chassis Ground

SK7 C1 Group 1 Channel 1 Passive A Input (A duplicate of SK7 terminal 5)

SK7 C2 Group 1 Channel 1 Passive B Input

SK7 C3 Group 1 Channel 1 Active Bias Output

SK8 A1 Group 1 Channel 2 Fused Vfield Output

SK8 A2 Group 1 Channel 2 Open Collector Input

SK8 A3 Group 1 0V (Ground)

SK8 B1 Group 1 Channel 2 Open Collector Loopback

SK8 B2 Group 1 Channel 2 Passive A Input (A duplicate input is also available on SK8

terminal 7)

SK8 B3 Chassis Ground

SK8 C1 Group 1 Channel 2 Passive A Input (A duplicate of SK8 terminal 5)

SK8 C2 Group 1 Channel 2 Passive B Input

SK8 C3 Group 1 Channel 2 Active Input Bias

SK9 A1 Group 1 Channel 3 Fused Vfield Output

SK9 A2 Group 1 Channel 3 Open Collector Input

SK9 A3 Group 1 0V (Ground)

SK9 B1 Group 1 Channel 3 Open Collector Loopback

SK9 B2 Group 1 Channel 3 Passive A Input (A duplicate input is also available on SK9

terminal 7)

SK9 B3 Chassis Ground

SK9 C1 Group 1 Channel 3 Passive A Input (A duplicate of SK9 terminal 5)

SK9 C2 Group 1 Channel 3 Passive B Input

SK9 C3 Group 1 Channel 3 Active Input Bias

SK10 A1 Group 2 Channel 1 Fused Vfield Output

SK10 A2 Group 2 Channel 1 Open Collector Input

SK10 A3 Group 2 0V (Ground)

SK10 B1 Group 2 Channel 1 Open Collector Loopback

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Interface Terminal Description

SK10 B2 Group 2 Channel 1 Passive A Input (A duplicate input is also available on SK10

SK10 B3 Chassis Ground

SK10 C1 Group 2 Channel 1 Passive A Input (A duplicate of SK10 terminal 5)

SK10 C2 Group 2 Channel 1 Passive B Input

SK10 C3 Group 2 Channel 1 Active Input Bias

SK11 A1 Group 2 Channel 2 Fused Vfield Output

SK11 A2 Group 2 Channel 2 Open Collector Input

SK11 A3 Group 2 0V (Ground)

SK11 B1 Group 2 Channel 2 Open Collector Loopback

SK11 B2 Group 2 Channel 2 Passive A Input (A duplicate input is also available on SK11

SK11 B3 Chassis Ground

SK11 C1 Group 2 Channel 2 Passive A Input (A duplicate of SK11 terminal 5)

SK11 C2 Group 2 Channel 2 Passive B Input

SK11 C3 Group 2 Channel 2 Active Input Bias

Speed Monitor IFTA T8846

terminal 7)

SK12 A1 Group 2 Channel 3 Fused Vfield Output

SK12 A2 Group 2 Channel 3 Open Collector Input

SK12 A3 Group 2 0V (Ground)

SK12 B1 Group 2 Channel 3 Open Collector Loopback

SK12 B2 Group 2 Channel 3 Passive A Input (A duplicate input is also available on SK12

terminal 7)

SK12 B3 Chassis Ground

SK12 C1 Group 2 Channel 3 Passive A Input (A duplicate of SK12 terminal 5)

SK12 C2 Group 2 Channel 3 Passive B Input

SK12 C3 Group 2 Channel 3 Active Input Bias

SK13 A1 Group 3 Channel 1 Fused Vfield Output

SK13 A2 Group 3 Channel 1 Open Collector Input

SK13 A3 Group 3 0V (Ground)

SK13 B1 Group 3 Channel 1 Open Collector Loopback

SK13 B2 Group 3 Channel 1 Passive A Input (A duplicate input is also available on SK13

terminal 7)

SK13 B3 Chassis Ground

SK13 C1 Group 3 Channel 1 Passive A Input (A duplicate of SK13 terminal 5)

SK13 C2 Group 3 Channel 1 Passive B Input

SK13 C3 Group 3 Channel 1 Active Input Bias

SK14 A1 Group 3 Channel 2 Fused Vfield Output

SK14 A2 Group 3 Channel 2 Open Collector Input

SK14 A3 Group 3 0V (Ground)

SK14 B1 Group 3 Channel 2 Open Collector Loopback

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Interface Terminal Description

SK14 B2 Group 3 Channel 2 Passive A Input (A duplicate input is also available on SK14

SK14 B3 Chassis Ground

SK14 C1 Group 3 Channel 2 Passive A Input (A duplicate of SK14 terminal 5)

SK14 C2 Group 3 Channel 2 Passive B Input

SK14 C3 Group 3 Channel 2 Active Input Bias

SK15 A1 Group 3 Channel 3 Fused Vfield Output

SK15 A2 Group 3 Channel 3 Open Collector Input

SK15 A3 Group 3 0V (Ground)

SK15 B1 Group 3 Channel 3 Open Collector Loopback

SK15 B2 Group 3 Channel 3 Passive A Input (A duplicate input is also available on SK15

SK15 B3 Chassis Ground

SK15 C1 Group 3 Channel 3 Passive A Input (A duplicate of SK15 terminal 5)

SK15 C2 Group 3 Channel 3 Passive B Input

SK15 C3 Group 3 Channel 3 Active Input Bias

Speed Monitor IFTA T8846

terminal 7)

Table 6 Speed Input Connections

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4. Field Connection Arrangements

his section shows the speed input connection arrangements for typical sensor configurations.

Active sensors are considered as field powered devices, and are available in two principal varieties:

• Totem Pole output sensors, actively drive their outputs to a positive potential and to ground and do not rely on an external voltage bias.

• Open Collector output sensors, can only actively drive their outputs to ground and rely on an external pull-up resistor to bias the output to a positive potential. The T8846 SIFTA provides the biasing components for this type of sensor.

Passive sensors are considered to be magnetic, inductive pick up devices with no field power requirements.

4.1. Active Totem Pole Output Sensor Types

4.1.1. Sensor Power Derived from FTA

Figure 4 shows a typical field connection scheme for +24Vdc field powered speed sensors with totem pole outputs. This arrangement uses the fused field supply derived from the FTA.

Figure 4 Active Totem Pole Output Sensor Connections (FTA Derived Field Supply)

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4.1.2. Sensor Power Derived Externally

Figure 5 shows a typical field connection scheme for field powered speed sensors with totem pole outputs. This arrangement uses an external fused field supply.

Figure 5 Active Totem Pole Output Sensor (Externally Derived Field Supply)

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4.2. Active Open Collector Output Sensor Types

4.2.1. Sensor Power Derived From FTA

igure 6 shows a typical field connection scheme for +24Vdc field powered speed sensors with open

F collector outputs. This arrangement uses the fused field supply derived from the FTA.

Figure 6 Active Open Collector Output Sensor (FTA Derived Field Supply)

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4.2.2. Sensor Power Derived Externally

Figure 7 shows a typical connection scheme for field powered speed sensors with open collector outputs. This arrangement uses an external fused field supply.

Figure 7 Active Open Collector Output (Externally Derived Field Supply)

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4.3. Passive Output Sensor Types

Figure 8 shows a typical field connection scheme for passive inductive pick-up speed sensors.

SENSOR

SIGNAL OUT (A)

SIGNAL OUT (B)

N/C

SCREEN

N/C

Figure 8 Passive Output Sensor Connections

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4.4. Chassis Ground Connections

The chassis ground plane on the T8846 is common across all groups of speed inputs and Speed Monitor interface connections.

The screening shield of each speed input signal cable should be connected to chassis ground at the T8846 assembly.

Each speed input channel has a terminal to allow connection of the screening shield to chassis ground, Refer to section 3.3 for connection details.

The T8846 chassis ground plane must be connected to a local chassis ground close to where the assembly is mounted.

There are two studs provided on the assembly to allow this connection to be made. These are marked as TERM1 & TERM2 on the PCB silkscreen legend.

Note : Only one connection should be made between the T8846 and local chassis ground.

Figure 9 Chassis Ground Connections

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5. Specifications

5.1. Group VField Power Supply Input Specifications

Parameter Min. Typ. Max. Unit Note

Group Vfield Input Voltage Range

VField (A) and VField (B) Inputs

Maximum Group VField Input Current

VField (A) and VField (B) Inputs

18 32 Vdc w.r.t. Group VField Return

1 A

Table 7 Group VField Power Supply Input Specifications

5.2. Group Speed Input Specifications

Parameter Min. Typ. Max. Unit Note

GROUP VFIELD OUTPUT

Group Vfield output voltage

@ 50mA load current

Maximum Group Vfield output current 62.5 mA

GROUP SPEED INPUTS

Open Collector Input Pull-up resistance to Group Vfield.

Maximum Open Collector Input Voltage

Open collector Input to Open collector output resistance.

Active Input Bias Voltage output w.r.t Group VField Return

22.6 Vdc VField input voltages @ 24Vdc

2000 Ohms

33 V w.r.t. Group VField Return

4990 Ohms

1.90 Vdc Group Vfield Input = 24Vdc

Differential input resistance Passive (A) & Passive (B) Inputs

Maximum Differential Input Voltage Passive (A) & Passive (B) Inputs

632 Ohms

10 V 632 ohm input resistance

Table 8 Group Speed Input Specifications

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5.3. General Specifications

Parameter Min Typ Max Unit Note

Temperature

Operating temperature -5 60

Storage temperature -25 70

Temperature change 0.5

Humidity

Operating humidity 5 95 %RH Non-Condensing

Dimensions

Height

Width

Depth

Weight

°C

°C/min

102

(4.0)

391

(15.40)

127

(5.0)

0.75 (1.6)

Table 9 General Specifications

(inches)

(lbs)

Refer to Figure 3

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Rockwell Automation T8846 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

2. Assembly

3. External Interfaces

3.1. Field Power Inputs

3.2. Speed Monitor Interfaces

3.3. Speed Inputs

4. Field Connection Arrangements

4.1. Active Totem Pole Output Sensor Types

4.1.1. Sensor Power Derived from FTA

4.1.2. Sensor Power Derived Externally

4.2. Active Open Collector Output Sensor Types

4.2.1. Sensor Power Derived From FTA

4.2.2. Sensor Power Derived Externally

4.3. Passive Output Sensor Types

4.4. Chassis Ground Connections

5. Specifications

5.1. Group VField Power Supply Input Specifications

5.2. Group Speed Input Specifications

5.3. General Specifications