ABB RELION 620 Series Technical Manual page 93

1MRS757644 F
620 series
Technical Manual
The active setting group can be changed by a parameter or via binary inputs depending
on the mode selected with the Configuration/Setting Group/SG operation mode
setting.
The default value of all inputs is FALSE, which makes it possible to use only the
required number of inputs and leave the rest disconnected. The setting group selection
is not dependent on the SG_x_ACT outputs.
Table 33: Optional operation modes for setting group selection
SG operation mode
Operator (Default)
Logic mode 1
Logic mode 2
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 34: SG operation mode = "Logic mode 1"
BI_SG_2 BI_SG_3
FALSE FALSE
TRUE FALSE
any TRUE
any any
any any
any any
Description
Setting group can be changed with the setting
Settings/Setting group/Active group.
Value of the SG_LOGIC_SEL output is FALSE.
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.
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.
Input
BI_SG_4 BI_SG_5
FALSE FALSE
FALSE FALSE
FALSE FALSE
TRUE FALSE
any TRUE
any any
Section 3
Basic functions
BI_SG_6 Active group
FALSE 1
FALSE 2
FALSE 3
FALSE 4
FALSE 5
TRUE 6
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