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Commissioning
A
Fig. 9: DIN rail installation
4.3
Connect transmitter box
Risk of electric shock
Dangerous touch voltages can lead to electric shock. To avoid electric shock, observe the following:
• Never connect or disconnect the transmitter box cable during a thunderstorm.
• Provide protective earthing for handling the transmitter box.
Incorrect connection procedure
Incorrect procedure when connecting the cable can cause hardware damage.
• Follow the documented procedure for connecting the cable.
• First connect the cable and only then switch on the power supply.
To make the transmitter box ready for operation, you have to connect it. The first step is to ground the
device. Then you can connect the cables and the power supply.
An external power supply unit is required to supply 24 V DC (-15 %/+20 %) for operating the device.
The cabling of the transmitter box in the control cabinet must be done in accordance with the standard EN
60204-1:2006 PELV = Protective Extra Low Voltage:
• The PE conductor (protective earth) and the "0 V" conductor of the voltage source must be on the
same potential (connected in the control cabinet).
• Standard EN 60204-1:2006, section 6.4.1:b stipulates that one side of the circuit, or a point of the
energy source for this circuit must be connected to the protective conductor system.
Devices connected to the transmitter box with their own power supply must have the same potential for the
PE "0 V" conductors as the control panel (no potential difference).
Grounding
Potential differences are minimized and electrical currents are diverted to the ground through protective
earthing or potential equalization of electronic devices. This is to prevent dangerous touch voltages and
electromagnetic interference.
The voltage socket of the transmitter box contains a PIN for protective earthing. Establish the low-resistance
protective earthing by connecting the power supply.
16
B
CAUTION
NOTICE
Version: 2.0
CU8803-000x
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