Figure 3-6: Left Side of the I/O Module
17. J5 Alarm Relays 9-Pin Connector: This connector is factory-wired to the alarm
contacts terminal block.
18. J4 Isolated Supervisory Link 6-Pin Connector: This connector is wired to the
termination board. For wiring details, see Table D - 6 in Appendix D.
19. J3 Local Analog Output 4-Pin Connector: This connector is wired to the
supervisory link terminal block. The 4–20 mA output is isolated. For wiring
details, see Table D - 6 in Appendix D.
20. J2 Thermistor 2-Pin Connector: This connector is factory-wired to the heating
plate thermistor. For wiring details, see Table D - 5 in Appendix D.
21. J1 Sensor 4-Pin Connector: This connector is factory-wired to the Hydran 201
sensor. For wiring details, see Table D - 5 in Appendix D.
3.4.6.3 Right Side of the I/O Module
The right side of the I/O module (Figure 3-7) carries six small LED diagnostic
indicators.
22. ˚C Heating state LED: This yellow LED flashes once every five seconds in
proportion to the amount of power supplied to the heating plate.
• The LED remains lit if the internal temperature is below the set point
(adjustable Temp SetPoint parameter in the Temperature; DynOil Sampl
submenu).
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