Hydronix Hydro-Control VI, Руководство по установке

Страница: 26 / 104

Electrical Installation Chapter 3
26 Hydro-Control VI Installation Guide HD0455 Rev 1.9.0
6 I/O Wiring Diagrams
It is recommended that any field wiring is protected by an emergency stop device that can
disconnect the devices being controlled from the signal given by the Hydro-Control in the event of
any problems.
6.1
Wiring digital inputs
This functions in a similar way to the coil side of a normally-open relay. To switch on the relay,
apply the correct potential across the terminals.
Figure 10: Digital Input Wiring Diagram
6.2
Wiring digital outputs
This functions in a similar way to the voltage free contact side of a normally-open relay. The
Hydro-Control switches on the relay therefore closing the contacts for the output side. Note
that the AC outputs have a minimum current of 20mA.
Figure 11: Digital Output Wiring Diagram
6.3
Wiring analogue inputs
The analogue inputs are current loop inputs, taking a signal of either 0-20mA or 4-20mA. This
is configurable on page 2 of the I/O Setup and Status pages. The connection to an Analogue
Input is shown as in Figure 12.
Figure 12: Analogue Input Current Loop Wiring Diagram
The wiring of the device connected to the Analogue Input will depend on whether the device
has a self powered loop or is powered by the loop itself.
24Vdc / 110ac (L)
0Vdc / 110ac (N)
Hydro-Control VI
Hydro-Control VI
24Vdc / 110ac (L)
0Vdc / 110ac (N)
Current loop signal
0-20 mA
4-20 mA
Hydro-Control VI
+
-
125Ω
Analogue GND