3.4.6.1 Top Side of the I/O Module
The top side of the I/O module supports five components:
8. AC Power 3-Terminal Block (in Figure 3-4): The terminal has a 300-V rating and
accepts 22–14 AWG wires (2.5 mm2 nominal). For wiring details, see Table D –
1 in Appendix D.
9. Supervisory Link and Analog Output Termination Board (in Figure 3-4 below):
The terminal has a 300-V rating and accepts 26–14 AWG wires (1.5 mm
2
nominal). It is protected against surge and electromagnetic interference. For
wiring details, see Table D - 6 in Appendix D.
Note: The Hydran 201R Model i uses a 9-m (30-ft) 6-conductor cable for the
supervisory link. Other configurations use either 4- or 6-conductor cables of varying
lengths.
10. AC Line EMI Filter (in Figure 3-4 below): The line filter, located beneath the
Supervisory Link and Analog Output Termination Board (item 9), blocks the
electromagnetic interferences conducted in the ac power supply.
Figure 3-4: First View of the Top Side of the I/O Module
11. Thermostat (in Figure 3-5 below): It stops the heating whenever the base
plate temperature exceeds 100 °C.
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