Table Change Signals Configuration Example - GE Multilin F650 Instruction Manual

5 SETPOINTS
The Relay incorporates several signals associated to the Protection elements grouping in tables. First, signals that indicate
the group activation:
GROUP 1 ACT ON
GROUP 2 ACT ON
GROUP 3 ACT ON
These activation signals for the different setpoint groups are configured using EnerVista 650 Setup at Setpoint > Relay
Configuration > Protection Elements as shown in the figure.
Figure 5–3: TABLE CHANGE SIGNALS CONFIGURATION EXAMPLE
The example above uses three digital inputs to perform the table selection, but it is possible to use any other logic signal in
the relay.
In case of using digital inputs, this allows the user to select the setpoint table using these digital inputs (which could come
from the PLC, or from a different relay, or from an auxiliary switch, for adaptive protection). This selection of the active
group has priority over the setpoint. If several signals are active at the same time, the highest one will be taken as valid. For
example, if selection signals for both groups 1 and 2 are active, the active table will be number 2.
The time used in the table change is one PLC logic scan cycle (5 ms typical), allowing a fast adaptation to system changes.
Another type of signals that refer to setpoint Groups are block signals. These are internal relay signals that indicate which
groups are active, and which are blocked. For example, if the setpoint grouping function is enabled and setpoint group 1
has been set as active, block signals from setpoint groups 2 and 3 will be active, and the block signal that corresponds to
group 1 will be inactive because that group is enabled.
Block signals are as follows:
GROUP 1 BLOCKED
GROUP 2 BLOCKED
GROUP 3 BLOCKED
All signals corresponding to setpoint Groups, both the activation and the block signals, are located in the Actual > Status >
Control Elements > setpoint Groups menu.
GE Multilin
This signal produces the activation of setpoint group 1
This signal produces the activation of setpoint group 2
This signal produces the activation of setpoint group 3
F650 Digital Bay Controller
5.4 PROTECTION ELEMENTS
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