/PERATING INSTRUCTIONS
3*
6
# ' #
R 0( 0(
2ESET RATIO R WHEN THE PHASE TO PHASE VOLTAGE IS
PROCESSED
3ETTING RANGE
TO
m
n
4 5
S
4RIP DELAY OF UNDERVOLTAGE STAGE 5
3ETTING RANGE
S TO
S
AND
0
NO TRIP WITH 5 STAGE
m
n
$EPENDENT ON A START UP CRITERION THE 5 STAGE AL
LOWS FURTHERMORE TO ACTIVATE A START THRESHOLD INSTEAD
OF THE NORMAL PICK UP THRESHOLD 7HEN THE START
UP CRITERION IS ACTIVATED UNDER ADDRESS THEN
THE START UP THRESHOLD IS
START UP THRESHOLD
R PARAMETR PICK UP THRESHOLD
4HUS THE START UP THRESHOLD IS ALWAYS LARGER OR
IDENTICAL TO THE NORMAL PICK UP THRESHOLD 4HE RESET
RATIO FOR THE START UP THRESHOLD IS FIXED AT 4HIS
MEANS BOTH THRESHOLDS HAVE THE SAME RESET RATIO
4HE 5 STAGE AND THE 5 STAGE CAN COMMONLY BE
MADE DEPENDENT ON A CURRENT CRITERION 7HEN THE
CURRENT CRITERION IS ACTIVATED UNDER ADDRESS
THEN THE RELEASE CONDITION OF THE CURRENT CRITERION HAS
TO BE FULFILLED ADDITIONALLY TO THE UNDERVOLTAGE CONDI
TION 4HIS MEANS A MINIMUM CURRENT WHICH CAN BE
PARAMETERIZED "2+ #,/3%$ ADDRESS HAS
TO FLOW FOR PROTECTION PICK UP 4HE MINIMUM CURRENT
STAGE ,3 ) IS COMMON FOR THIS VOLTAGE PROTECTION
THE BREAKER FAILURE PROTECTION THE THERMAL OVERLOAD
PROTECTION AND THE RESTART LOCKOUT PROTECTION FOR MO
TORS
4HE SET TIME 4 5 IS AN ADDITIONAL TIME DELAY
WHICH DOES NOT INCLUDE THE PROTECTION FUNCTION S IN
HERENT OPERATING TIME
34!24#2)4
/&&
3TART UP CRITERION FOR INCREASED UNDERVOLTAGE
PICK UP IS
SWITCHED
/&&
OR
SWITCHED
/.
/.
m
n
.
3# )
))N
0ICK UP VALUE OF START UP CRITERION CURRENT
3ETTING RANGE
TO
|
)
.
m
4 3#
S
0ROLONGATION OF THE START UP CRITERION
3ETTING RANGE
S TO
S
n
5 0( %
6
0ICK UP THRESHOLD OF THE 5 STAGE OF THE UNDER
VOLTAGE PROTECTION WHEN THE PHASE TO GROUND
VOLTAGE IS PROCESSED
3ETTING RANGE
6 TO
6
m
n
5 0( 0(
6
0ICK UP THRESHOLD OF THE 5 STAGE OF THE UNDER
VOLTAGE PROTECTION WHEN THE PHASE TO PHASE
VOLTAGE IS PROCESSED
3ETTING RANGE
6 TO
6
m
n
4 5
S
4RIP DELAY OF UNDERVOLTAGE STAGE 5
3ETTING RANGE
S TO
S
AND
0
NO TRIP WITH 5 STAGE
m
n
# #2)4 56
/.
#URRENT CRITERION OF UNDERVOLTAGE PROTECTION IS
SWITCHED
/.
OR
SWITCHED
/&&
/&&
m
n
.
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