3 Product Description HIMax System
HI 801 001 E Rev. 4.01 Page 18 of 122
Each module has a connector board to which external devices such as sensors, actuators
and other controllers are connected. Both connector boards for the system bus modules
are included within the scope of delivery.
The clamp terminal blocks of the base plate are used to connect the power supply. Two
redundant 24 VDC power supply units can be connected.
3.1.2 Ventilation
A suitable fan rack located above the base plate ensures the ventilation.
The air flows from the fan rack downwards through the modules and through the
connection space located in front of the connector boards. To ensure proper ventilation,
insert blank modules in all the unused slots of the base plate!
NOTE
Controller damage due to overheating!
Overheating can destroy electronic components!
Only operate HIMax systems if ventilation is ensured!
A fan rack with suitable dimensions is available for each base plate type. Depending on the
width, the fan racks are equipped with 2, 3 or 4 fans. For more information, refer to the
X-FAN Manual (HI 801 033 E).
Additional dissipation of the generated hot air must be ensured, see Chapter
9.1.6.
3.1.3 Monitoring the Temperature
The modules monitor their own temperature. Use the SILworX programming tool to display
the temperature level and evaluate it for programming reactions.
Details of configuring the temperature monitoring in chapter
9.1.6 .
3.1.4 Power Supply
The HIMax system requires a power supply of 24 VDC.
The safe electrical isolation of the power supply must be ensured within the 24 V system
supply. Use power supply units of type PELV or SELV only. When used in accordance with
UL regulations, an adjustable power supply unit with a maximum voltage of 150 V and a
maximum performance of 10 kVA is allowed.
The power supply used must have a momentary interruption immunity value of < 10 ms.
HIMA power supply units are appropriately equipped. Before using power supply units from
other manufacturers, ensure their adequate testing.
Two redundant power supply units can be connected.
NOTE
Controller damage due to overvoltage!
Set the power supply unit so that the supply voltage cannot exceed 30 V!
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