Chapter 2: Installation 2.4 Electrical Installation
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Supply ground to ground terminal.
Supply neutral to terminal 4.
Supply live to terminal 1.
Note: The ground connection must always be connected to ground when the
controller is connected to the mains supply.
When an AC supply is used a +24 V supply is available from terminals Z10
(+24 V) and Z2 (0 V) to supply external units, e.g. transmitters. The maximum
loading on these terminals is 150 mA.
D.C. Supply
The controller can operate from a +24 V DC power supply, maximum power
consumption 15 W.
Notes:
• The supply terminals at the rear of the cassette can accommodate wire of
maximum size 1.5 mm
2
.
• It is strongly recommended that the d.c. supply should be fused appropriately.
To connect the d.c. supply proceed as follows:
1 Switch the d.c. supply Off and disconnect the d.c. supply cable from the d.c.
outlet.
2 Connect the cable to the supply terminals at the rear of the cassette as
follows:
Supply positive to terminal Z6.
Supply negative to terminal Z4.
Note: Remove the jumper between Z8 and Z6.
I/O Signal Wiring
All the input and output signals are connected to the terminal block. The
maximum wire size which can be connected to the terminal block is 1.5 mm
2
.
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