4 Hardware Installation
Fieldgate FXA720
14
Hauser
4.2
Wiring
4.2.1 Power supply
Fieldgate FXA720 is powered by 24 V DC. The power supply female plug connector is included in
the delivery. The power supply male socket connector on the front panel is labeled 24VDC
(see Fig. 4.1).
The two power supply terminals are labeled L+ and L–.
• Connect L+ to +24 VDC and connect L– to 0 VDC.
The two terminals are provided with an internal reverse-polarity protection.
Grounding
Proper grounding is prerequisite for compliance with the EMC directives and for ensuring a proper
operation.
• The functional ground terminal is labeled and must be connected to the protective ground.
• For use in an environment that is highly subject to electromagnetic interference, an additional
ground connection can be provided at the grounding screw below the "ETH" connector.
The power supply is connected to the plug connector via flexible wires with a cross-section of 0.75
to 1.5 mm². The ground connection wire must have a cross-section of 1.5 mm².
Fuse
The Fieldgate FXA720 has an internal safety fuse which blows if an overvoltage occurs in the power
supply (of approx. 30V or higher) or if a fault occurs in the device. The safety fuse can be replaced
by the device manufacturer only.
Note!
• The start-up current of the Fieldgate FXA720 may be up to 3A. The power supply must provide
this starting current in compliance with the voltage range to ensure a safe startup.
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