2.10 Synchrocheck (25)
2 Protection functions
Technical description
70
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VM55.EN005
Parameter Values
Unit
Default
Description
Umode
-,
DD,
DL,
LD,
DD/DL,
DD/LD,
DL/LD,
DD/DL/LD
-
-
Voltage check mode:
The first letter refers to
the reference voltage and
the second letter refers to
the comparison voltage.
D means that the side
must be “dead” when
closing (dead = The
voltage below the dead
voltage limit setting)
L means that the side
must be “live” when
closing (live = The voltage
higher than the live
voltage limit setting)
Example: DL mode for
stage 1:
The U12 side must be
“dead” and the U12y side
must be “live”.
Cbtime
0.04 … 0.6
s
0.1
Typical closing time of the
circuit-breaker.
Dibypass
Digital
inputs
-
-
Bypass input. If the input
is active, the function is
bypassed.
Bypass
0; 1
-
0
The bypass status. “1”
means that the function is
bypassed. This parameter
can also be used for
manual bypass.
CBCtrl
Open;Close
-
-
Circuit-breaker control
ShowInfo
Off; On
-
On
Additional information
display about the
sychrocheck status to the
mimic.
SGrpDI
Digital
inputs
-
-
The input for changing
the setting group.
SetGrp
1; 2
-
1
The active setting group.
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