User Manual

Trusted
TM
Speed Monitor IFTA T8846
Issue 2 Apr 10 PD-T8846 4
Table of Contents
1. Product Range ...............................................................................................................................8
2. Assembly........................................................................................................................................9
3. External Interfaces .......................................................................................................................10
3
.1.
F
ield Power Inputs........................................................................................................................11
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
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