3.2.4.2
Parameter management
The LHMI is used to access the relay parameters. Three types of parameters can be
read and written.
•
Numerical values
•
String values
•
Enumerated values
Numerical values are presented either in integer or in decimal format with minimum
and maximum values. Character strings can be edited character by character.
Enumerated values have a predefined set of selectable values.
Changing the function block on or off affects the visibility of its
parameters in the menu.
Changing the value of certain relay parameters affects the visibility or
range of other parameters in the menu. This indicates which
parameters or parameter values become obsolete due to the change.
The relay changes the visibility or range of these parameters
immediately even before the changed values have been committed.
Some parameters may be hidden because the function is off or the
setting visibility is set to “basic” instead of “advanced”.
3.2.4.3
Front communication
The RJ-45 port in the LHMI enables front communication. Two LEDs are located
above the communication port.
•
The green uplink LED on the left is lit when the cable is successfully connected
to the port.
•
The yellow communication LED on the right flashes when the protection relay
communicates with the connected device.
1MRS758754 B
Section 3
REC615 and RER615 overview
REC615 and RER615
27
Operation Manual
