Beckhoff SCT Series, Документация

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Commissioning
SCT5xxx 34 Version: 1.0
4.6 Description of the User Interface SCT5xxx
The SCT5xxx have three user selectable parameters, for each of which 3-5 different values can be selected.
The simple and intuitive user interface is located on the top of the device and is used to configure the
transformer with three buttons located below the interface. These buttons can only be operated with a tool
that prevents unintentional and unauthorized access in accordance with the applicable product standards.
The interface also has a test button and a status LED for visual indication.
Fig. 23: User interface with input and test button
1. Power-on/ Status LED
The LED lights up green with heartbeat characteristic
*)
during normal operation with low residual currents. If
the color changes to red with heartbeat characteristic, the measured TRMS residual current is higher than
the rated RC limit.
The LED flashes green during start-up. Continuous red light in combination with several flashing green LEDs
of the "Rated RC limit" group indicates an error state.
*) The light intensity of the status LED changes continuously with a heartbeat characteristic to signal the correct execution of the soft-
ware and to indicate that the SCT is in correct operational mode.
2. Error codes
LEDs (flashing), left group Diagnosis
2x Input voltage outside permissible range
3x Relay activated too often
4x Overtemperature
5x Internal error
3. Test button
The test button is used to activate the test sequence for testing the operation of the SCT. If the test is
successful, the relay is activated and the LED lights up red.
If the relay is locked due to too many activations, pressing the button for 3 seconds will reset the state when
the differential current is normal.