Engineering Documentation

Appendix A – Discontinued Products
Terminal Equipment Controller—Pneumatic Output, Low Voltage
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100K Ohm Thermistor Input
100K Ω thermistor inputs can be wired to the LTEC inputs AI 1/DI 1 or AI 2/DI 2 on
terminal block J6.
NOTE:
The following figure illustrates a 100K Ω thermistor input connecting to input
terminals J6-2 and J6-3, which correspond to termination set AI 1/DI 1.
Fig. 163: 100K Ω Thermistor Input Connection to the LTEC.
100K Ω Thermistor Input Wiring Details.
Termination Set Terminal Numbers Internal Jumper
Signal
+
Common
–
AI 1/DI 1 J6-2 J6-3 N/A
AI 2/DI 2 J6-5 J6-6 N/A
Digital Input
AI 1/DI 1, AI 2/DI 2, or AI 5/DI 5
Digital inputs can be wired to the LTEC inputs AI 1/DI 1, AI 2/DI 2, or AI 5/DI 5 on
terminal block J4 or J6 (Figure 132). An external jumper provides a 5 Vdc source to be
used for sensing dry contacts.
AI 3/DI 3 or AI 4/DI 4
Digital inputs can be wired to the LTEC inputs AI 3/DI 3 or AI 4/DI 4 on terminal block
J6 (Figure 133). For these inputs, use the internal jumper blocks, J12 and J13
respectively, and configure them as shown in Table Digital Input Wiring Details.
Figure 132. Digital Input Connection to
LTEC Inputs AI 1/DI 1, AI 2/DI 2, or AI 5/DI 5.
Figure 133. Digital Input Connection to
LTEC Inputs AI 3/DI 3 or AI 4/DI 4.