Rockwell Automation T8840 Trusted Temperature FTA - Manual (Page 3)

Trusted
TM
Temperature FTA T8840
Issue 4 Apr 10 PD-T8840 3
Table of Contents
1. Description......................................................................................................................................6
2. Installation ......................................................................................................................................7
2.1. Cable Selection ..............................................................................................................................7
2.2. Module Pin-out Connections ..........................................................................................................9
2.2.1. RTD1 to RTD8................................................................................................................................9
2.2.2. PWR ...............................................................................................................................................9
2.2.3. IOIF.................................................................................................................................................9
3. Application ....................................................................................................................................11
3.1. Signal Conditioning units ..............................................................................................................11
3.1.1. Isolator Physical dimensions ........................................................................................................11
3.1.2. Conditioning Unit Specification.....................................................................................................12
3.1.3. Available Conditioning Units.........................................................................................................12
3.1.4. Cold Junction Compensation .......................................................................................................13
4. Specifications ...............................................................................................................................14
Figures
Figure 1 Module Layout ...........................................................................................................................6
Figure 2 System connectivity using 1-5v output devices ..........................................................................7
Figure 3 System connectivity using VFTA ................................................................................................8
Figure 4 Temperature Input Schematic ....................................................................................................9
Figure 5 Conditioning Unit Dimensions ..................................................................................................11
Tables
Table 1 Input Terminations.......................................................................................................................9
Table 2 Power terminations ......................................................................................................................9
Table 3 Temperature signal Outputs ......................................................................................................10