Basler BE1-11g, Инструкция по эксплуатации

Страница: 199 / 706

9424200994 Rev U 187
BE1-11 g Setting Groups
Setting Groups
Four setting groups allow for adapting the coordination settings to optimize them for a predictable
situation. Sensitivity and time coordination settings can be adjusted to optimize sensitivity or clearing time
based upon source conditions or to improve security during overload conditions. The possibilities for
improving protection by eliminating compromises in coordination settings with adaptive setting groups are
endless.
The four setting groups are designated Setting Group 0, Setting Group 1, Setting Group 2, and Setting
Group 3. Setting group logic connections are made on the BESTlogic
™
Plus screen in BESTCOMS Plus
®
and setting group operational settings are configured on the Setting Group Setup screen in
BESTCOMS
Plus . A summary of the logic inputs and outputs and operational settings appears at the end
of this chapter.
BESTCOMSPlus Navigation Path: Settings Explorer, General Settings, Setting Group Setup
HMI Navigation Path: Settings Explorer, General Settings, Settings Group
Setting Group Functions
The group of settings that is active at any point in time is controlled by the setting group selection logic.
This function logic allows for manual (logic) selection.
Logic Inputs
The function monitors logic inputs D0 through D3 and changes the active setting group according to the
status of these inputs. These inputs can be connected to logic expressions such as contact sensing
outputs.
Logic Outputs
The function logic has four logic variable outputs, SG0 through SG3. The appropriate variable is asserted
when each setting group is active. These logic variables can be used in programmable logic to modify the
logic based upon which setting group is active.
The SGCACTIVE logic output is asserted when setting group control is active. The SGCLOVRD logic
output is asserted when setting group control is overridden by logic.
Changing Setting Groups
When the BE1-11
g
switches to a new setting group, all functions are reset and initialized with the new
operating parameters. The settings change occurs instantaneously so at no time is the BE1-11 g off line.
The active setting group is saved in nonvolatile memory so that the BE1-11 g will power up using the
same setting group that was active when it was powered down. To prevent the BE1-11
g
from changing
settings while a fault condition is in process, setting group changes are blocked when the BE1-11
g
is in a
picked-up state. Since the BE1-11 g is completely programmable, the fault condition is defined by the
pickup logic expression in the fault reporting functions. See the Fault Reporting chapter for more
information.
Setting Group Selection
Selection of the active setting group provided by this function logic can also be overridden. When logic
override is used, a setting group is made active and the BE1-11
g stays in that group regardless of the
state of the manual logic control conditions.
Manual (logic) selection reads the status of the logic inputs to the setting group selection function block to
determine what setting group should be active.
For the logic inputs to determine which setting group
should be active, the AUTOMATIC input must be logic 0. The function block operational mode setting
determines how it reads these logic inputs. There are three possible logic modes as shown in Table 75.