ABB REF542plus Operator's Manual page 12

REF542plus
12
Multifunction Protection and Switchgear Control
Unit
Operator's manual
Fig. 3.1.-1 HMI control area
1 E-Key sensor
This section of the LCD display shows the Single Line Diagram (SLD) of the
controlled panel and the measurement bars. Text can be added in this section
to improve the understanding of SLD.
Command buttons
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The Primary Object Control can be performed with the following push
buttons to allow operating the primary objects if configured as "selectable".
The command push buttons for local operation of the switching devices are:
Open: to open the selected object.
Close: to close the selected object.
Select: to select the object. The selected object appears highlighted.
CB Fast Opening: to allow opening of the circuit breaker independently
from the selected control mode. When pressed simultaneously with the
normal open button, this button allows opening the circuit breaker
independently from the selected control mode. This feature must be
enabled in the unit with the Operating Tool.
E-Keys Sensor: this is the sensor for the electronic keys. The sensor
*
automatically detects which key has been inserted. The two keys are
usually labelled "Protect" and "Control" to distinguish them.
Protection key: is specialized to the protection environment allowing
*
changing of parameters and other functions related to the protection.
Control Key: this is dedicated to the control modes. It allows changing the
*
operating mode of REF542plus. The different operating modes discipline
the access to the primary objects by the different REF542plus interfaces
(HMI and SCADA). When required, a Super User key to access both
1MRS755869
A051328