TB MRU3-2 12.00 E
13
5
Operations and settings
5.1
Display
Function
Display shows
Pressed pushbutton
Corresponding LED
Normal operation
SEG
Measured operating values
Actual measured value
<SELECT/RESET>
one time for each value
L1, L2, L3, U1, U2,
U0
Phasenfolge
123; 321
PS
Transformer ratio of the CT’s
(SEK) 1.01-6500=prim
<SELECT/RESET><+><->
L1, L2, L3
Setting values
Star/delta connection
Y/DELT
<SELECT/RESET><+><->
D/Y
Mains frequency
f = 50 Hz, f = 60 Hz
v = 50 Hz, v = 60 Hz
<SELECT/RESET><+><->
f
N
Parameter switch/external trig-
ger for the fault recorder
SET1, SET2, B_S2, R_S2,
B_FR, R_FR, S2_FR
<SELECT/RESET><+><->
P2
Switch-over LED flash
No LED flash
FLSH
NOFL
<SELECT/RESET><+><->
U</U> 1-phase/3-phase
tripping
U<>1/U<>3
<SELECT/RESET><+><->
1/3
undervoltage (low set)
tripping delay of low set element
Setting value in volt
Setting value in seconds
<SELECT/RESET><+><->
one time for each value
U<
t
U<
undervoltage (high set)
tripping delay of high set element
Setting value in volt
Setting value in seconds
<SELECT/RESET><+><->
one time for each value
U<<
t
U<<
overvoltage (low set)
tripping delay of low set element
Setting value in volt
Setting value in seconds
<SELECT/RESET><+><->
one time for each value
U>
t
U>
overvoltage (high set)
tripping delay of high set element
Setting value in volt
Setting value in seconds
<SELECT/RESET><+><->
one time for each value
U>>
t
U>>
positive-phase sequence system un-
dervoltage U1<; trip delay t
U1<
Setting value in volt
Setting value in seconds
<SELECT/RESET><+><->
one time for each value
U1<
t
U1<
positive-phase sequence system
overvoltage U1>; trip delay t
U1>
Setting value in volt
Setting value in seconds
<SELECT/RESET><+><->
one time for each value
U1>
t
U1>
negative-phase sequence system
overvoltage U2>; trip delay t
U2>
Setting value in volt
Setting value in seconds
<SELECT/RESET><+><->
one time for each value
U2>
t
U2>
zero-phase sequence system U0>
trip delay t
U0>
Setting value in volt
Setting value in seconds
<SELECT/RESET><+><->
one time for each value
U0>
t
U0>
Function blocking
EXIT
<+> until max. setting
<-> until min. setting
LED of blocked pa-
rameter
Slave adresse of serial interface
1 - 32
<SELECT/RESET><+><->
RS
Baud-Rate
1)
1200-9600
<SELECT/RESET><+><->
RS
Parity-Check
1)
even odd no
<SELECT/RESET><+><->
RS
Recorded fault data:
Star-connection: L1, L2, L3
Symmetrical components:
U1, U2, U0
Tripping values in volt
<SELECT/RESET><+><-> one
time for each phase
L1, L2, L3; U1, U2,
U0, U<, U<<, U>,
U>>, U1<, U1>,
U2>, U0>
Delta-connection: L1/L2, L2/L3,
L3/L1
symmetrical components: U1, U2
Tripping values in volt
<SELECT/RESET><+><->
one time for each phase
L1, L2, L3, U1, U2,
U<, U<<, U>, U>>,
U1<, U1>, U2>
Save parameter?
SAV?
<ENTER>
Save parameter!
SAV!
<ENTER> for about 3 s
Delete failure memory
wait
<-> <SELECT/RESET>
Enquiry failure memory
FLT1; FLT2.....
<-><+>
L1, L2, L3
U<, U<<, U>, U>>
Trigger signal for the fault recorder
TEST, P_UP, A_PI, TRIP
<SELECT/RESET> <+><->
FR
1)
only Modbus