TrustedTM PD-T8846 TrustedTM Speed Monitor IFTA (SIFTA) Introduction TM The Trusted Speed Monitor Input Field Termination Assembly (SIFTA) is a DIN rail assembly. It TM 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.
TrustedTM Speed Monitor IFTA T8846 Issue Record Issue Number Date Revised by 1 Sept 05 J W Clark 2 Apr 10 S. Blackett Issue 2 Apr 10 Technical Check Authorised by Modification Format A. Holgate PD-T8846 P.
TrustedTM Speed Monitor IFTA T8846 Figure 1 T8846 Module Photo Issue 2 Apr 10 PD-T8846 3
TrustedTM Speed Monitor IFTA T8846 Table of Contents 1. Product Range ...............................................................................................................................8 2. Assembly........................................................................................................................................9 3. External Interfaces .......................................................................................................................10 3.1.
TrustedTM Speed Monitor IFTA T8846 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 .............................................................
TrustedTM Speed Monitor IFTA T8846 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.
TrustedTM Speed Monitor IFTA T8846 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.
TrustedTM Speed Monitor IFTA T8846 1. Product Range Catalogue No. Product name Description T8442 TMR Speed Monitor. Trusted TMR Speed Monitor Module. T8846 Speed Input FTA Input field termination assembly for use with the T8442 TMR Speed Monitor. (SIFTA) T8891 TC-801 Speed Output FTA (SOFTA) Output field termination assembly for use with the T8442 TMR Speed Monitor. I/O Companion Slot, Speed Monitor to FTA (Internal ) Companion Slot I/O cable with internal power.
TrustedTM Speed Monitor IFTA T8846 2. Assembly The T8846 Speed Input Field Termination Assembly (SIFTA) is an integral part of the overall T8442 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 TM Trusted system. The SIFTA has nine identical speed transducer signal conditioning circuits arranged as three groups of three.
TrustedTM Speed Monitor IFTA T8846 3. External Interfaces Figure 3 shows the T8846 general assembly.
TrustedTM Speed Monitor IFTA T8846 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.
TrustedTM Speed Monitor IFTA T8846 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.
TrustedTM Speed Monitor IFTA T8846 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
TrustedTM Speed Monitor IFTA T8846 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
TrustedTM Speed Monitor IFTA T8846 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.
TrustedTM Speed Monitor IFTA T8846 Interface Terminal SK10 B2 Group 2 Channel 1 Passive A Input (A duplicate input is also available on SK10 terminal 7) 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
TrustedTM Speed Monitor IFTA T8846 Interface Terminal Description SK14 B2 Group 3 Channel 2 Passive A Input (A duplicate input is also available on SK14 terminal 7) 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
TrustedTM Speed Monitor IFTA T8846 4. Field Connection Arrangements This 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.
TrustedTM Speed Monitor IFTA T8846 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.
TrustedTM Speed Monitor IFTA T8846 4.2. Active Open Collector Output Sensor Types 4.2.1. Sensor Power Derived From FTA Figure 6 shows a typical field connection scheme for +24Vdc field powered speed sensors with open collector outputs. This arrangement uses the fused field supply derived from the FTA.
TrustedTM Speed Monitor IFTA T8846 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.
TrustedTM Speed Monitor IFTA T8846 4.3. Passive Output Sensor Types Figure 8 shows a typical field connection scheme for passive inductive pick-up speed sensors.
TrustedTM Speed Monitor IFTA T8846 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.
TrustedTM Speed Monitor IFTA T8846 5. Specifications 5.1. Group VField Power Supply Input Specifications Parameter Min. Group Vfield Input Voltage Range Typ. 18 VField (A) and VField (B) Inputs Maximum Group VField Input Current VField (A) and VField (B) Inputs Max. Unit Note 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 22.6 Vdc VField input voltages @ 24Vdc 62.
TrustedTM Speed Monitor IFTA T8846 5.3. General Specifications Parameter Min Typ Max Unit Note Temperature Operating temperature -5 60 °C Storage temperature -25 70 °C 0.5 °C/min 95 %RH Temperature change Humidity Operating humidity 5 Non-Condensing Dimensions Height 102 (4.0) Width 391 (15.40) Depth 127 (5.0) mm (inches) Weight 0.75 (1.
