Hydronix Hydro-Control VI, Installation Manual

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Electrical Installation Chapter 3
24 Hydro-Control VI Installation Guide HD0455 Rev 1.9.0
1.5
Analogue I/O Connector (on optional Expansion Board)
Pins Name Description
+ -
45 46 Analogue Out 2 Analogue output reserved for future use.
47 48 Analogue Out 1 Analogue output reserved for future use.
49 50 Analogue In Analogue input reserved for future use.
51 52 Weigh Scale Analogue weigh scale input for weighed water system.
2 Power Supply
The unit uses 24v DC, with a nominal power rating of 24W including the sensor.
Minimum supply: 24v DC, 1.25A (30W)
Recommended supply: Hydronix part number 0116
Important:
If using 24v DC for inputs/outputs (valves, etc), then this should be
powered from a separate power supply to the main unit to reduce the
likelihood of interference between the two systems.
3 Communications
3.1
RS485
The RS485 connection is used for communicating with a Hydronix moisture sensor. It is
possible to change operating parameters and sensor diagnostics from the Hydro-Control.
3.2
RS232
The RS232 connection is used for connection to a batch computer or remote operator terminal
to permit the remote selection of recipes.
3.3
Ethernet Telnet Port
Enables the same operations available on the RS232 using the Telnet port (port23).
4 Interface modules
4.1
OPTO-22 Modules
The Hydro-Control is fitted with plug-in optically isolated input/output modules, manufactured
by OPTO-22. A range of different input/output modules is available depending on the voltage
required.
Seven output modules and five input modules are provided. The FINE WATER output MUST
be connected for the unit to function correctly. All other connections are optional and can be
connected as appropriate for each configuration.