Table 16: Optional operation modes for setting group selection
SG operation mode Description
Operator (Default) Setting group can be changed with the setting
Settings/Setting group/Active group.
Value of the SG_LOGIC_SEL output is FALSE.
Logic mode 1
Setting group can be changed with binary inputs
(BI_SG_2...BI_SG_6). The highest TRUE
binary input defines the active setting group.
Value of the SG_LOGIC_SEL output is TRUE.
Logic mode 2
Setting group can be changed with binary inputs
where BI_SG_4 is used for selecting setting
groups 1-3 or 4-6.
When binary input BI_SG_4 is FALSE, setting
groups 1-3 are selected with binary inputs
BI_SG_2 and BI_SG_3. When binary input
BI_SG_4 is TRUE, setting groups 4-6 are selected
with binary inputs BI_SG_5 and BI_SG_6.
Value of the SG_LOGIC_SEL output is TRUE.
The setting group (SG) is changed whenever switching the SG
operation mode setting from "Operator" to either "Logic mode 1" or
"Logic mode 2." Thus, it is recommended to select the preferred
operation mode at the time of installation and commissioning and not
change it throughout the protection relay's service. Changing the SG
operation mode setting from "Logic mode 1" to "Logic mode 2" or
from "Logic mode 2" to "Logic mode 1" does not affect the setting
group (SG).
For example, six setting groups can be controlled with three binary inputs. The
SG
operation mode is set to “Logic mode 2” and inputs BI_SG_2 and BI_SG_5 are
connected together the same way as inputs BI_SG_3 and BI_SG_6.
Table 17: SG operation mode = “Logic mode 1”
Input
BI_SG_2 BI_SG_3 BI_SG_4 BI_SG_5 BI_SG_6 Active group
FALSE FALSE FALSE FALSE FALSE 1
TRUE FALSE FALSE FALSE FALSE 2
any TRUE FALSE FALSE FALSE 3
any any TRUE FALSE FALSE 4
any any any TRUE FALSE 5
any any any any TRUE 6
1MRS758755 A Section 3
Basic functions
REC615 and RER615 61
Technical Manual
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