HortiMaX-Go! control cabinet

The HortiMaX-Go! control cabinet houses a panel PC (controller), a Smart Switch with an alarm output, and a connection for the weather station.

Figure 36: Front view of HortiMaX-Go!

Location and connection requirements

Bear in mind the following when choosing a location for the control cabinet:

1. Make sure that the cabinet is easy to access.
2. Keep the cabinet out of direct sunlight, so the display is easy to read. Keep out of reach of rain, condensation water and sprinkler irrigation.
3. Do not exceed the maximum field bus length (500 metres).

Connecting supply voltage (power supply)

The connection value of the cabinet's supply voltage is 110-230V, 50-60Hz. Proper grounding (earthing) is required. The power supply voltage of the cabinet is DC24V with 1.8A.

Figure 37: Front view without cabinet door and flow chart

Fieldbus

Communication with and between the Smart Switches occurs via a fieldbus. In order to prevent communication problems, the cables must be connected correctly. Use UTP Cat5e AWG24 cables to interconnect the Smart Switches as follows:

When connecting the Smart Switches in series, there should be no branches in the bus communication. Use the orange wire for connection 'A', and the orange-white wire for connection 'B'. Never use two twisted pairs of wires on the same bus terminal.

If using two or more power sources, no potential difference may arise. Connect the blue/blue-white pair of twisted wires on V- to avoid any potential difference. Connect the V- of the control cabinet to earth (ground).

Never increase the supply voltage of the Smart Switches above DC24V, as this will inevitably cause damage. Install additional power supplies if the distance between Smart Switches is too great and/or more power is required.