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Connections
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This chapter shows how to connect the power supply and the data cables. All cables and cable shields
must be connected as specified in order to comply with the required EMC
1
values.
Connection of the Power Supply
The terminal controller with mains cable and Schuko plug is designed for operation with 230 VAC power.
NOTE
Operate the terminal controller
either
with the voltage indicated on the type label
or
with
PoE-capable devices of power class 3. If operation with low voltage and PoE is requested,
use an 18 VDC plug-in AC adapter (part number 41-10063) as power supply. Note our
instructions on grounding for PoE operation.
Plug the Schuko plug into the power outlet just prior to initial operation.
Connection of Low-voltage Supply for Terminal Controllers with Low-voltage Option
Use a transformer or a DC power unit with 12VDC/VAC to 30VDC/VAC to power terminal controllers. We
recommend 18VDC 1A. Terminal controllers with emergency power supply (option) require a transformer or a
DC power unit with 12VDC/VAC to 30VDC/VAC. The minimum voltage for charging the battery is 18 VDC/AC.
When operating a terminal controller on a PoE device, an additional power supply with 230VAC is
not
allowed
because this can lead to malfunctions in connection with PoE devices. If this type of operation is nonetheless
required, an additional low-voltage power supply with 18VDC 1A must be used. (Plug-in power supply unit,
Order number 41-10063)
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The low-voltage supply is connected to screw connector KL.1, /- polarity into account with DC
current operation.
The low-voltage cable must be secured with the cable strain relief.
To comply with the EMC values, the terminal controller requires a protective grounding. Connect the
protective ground conductor (PE) to the marked grounding terminal on the housing or to terminal 3.
A PTC resistor, which automatically reduces the supply of power when currents exceed 1.3 A, ensures
low-voltage protection.
Clamp for protective earth conductor
Devices with emergency power supply
Batteries require 18 to 30 VDC/VAC (18 VDC 1A recommended)
Mains connection board and transformer are not
required for devices with low-voltage operation
Terminal for low-voltage connection
KL. 1
Signal assignment
5 GND
Not required
4BAT
Input for floating USV status signal
(signal: Logical 0 with battery operation)
3 PE
Clamp for protective earth conductor
2 -/~
18-30 VAC/DV (18VDC recommended)
1 +/
18-30 VAC/DV (18 VDC recommended)
Figure 5: Low-voltage connection to screw terminal KL.1.
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EMC = Electromagnetic compatibility according to EN 60950, EN 61000-6-1/2, EN 61000-6-3/4, CE 0682