TB MRF3 04.01 E
13
Function
Display shows
Pressed pushbutton
Corresponding
LED
Colour
of LED
Releasing threshold for frequency
measuring
Setting value in volt
<SELECT/RESET><+><->
UB + max
green
yellow
Assignment of blocking function
BLOC; NO_B
SELECT/RESET><+><->
f
1
- f
4
, df
1
, df
2
Assignment of output relays
1 - 4
<ENTER> + <TRIP>
<SELECT/RESET><+><->
R
f
1
- f
4
,,
tf
1
- tf
4
,dt
1
, dt
2
red
green
red
Recorded fault data:
voltage
Tripping value in Volt
<SELECT/RESET><+><->
U
red
Slave address of serial interface
1 - 32
<SELECT/RESET><+><->
RS
yellow
Baud-Rate
2)
1200-9600
<SELECT/RESET><+><->
RS
yellow
Parity-Check
2)
even odd no
<SELECT/RESET><+><->
RS
yellow
Frequency
Tripping value in Hz
<SELECT/RESET><+><->
f, fmin, fmax
red,
yellow
Frequency changing speed
Tripping value in Hz/s
<SELECT/RESET><+><->
df, df
min
, df
max
Fault memory
FLT1; FLT2.....
<SELECT/RESET><+><->
U, f, fmin, fmax,
df, dfmin, dfmax
tf
1
- tf
4
,dt
1
, dt
2
,
!
red,
yellow
red
red,
green
Delete failure memory
wait
<-> <SELECT/RESET>
Number of fault occurences
S = 1N to S = 8N or
S = 1L to S = 8L
<SELECT/RESET> <+><-> FR
yellow
Trigger signal for the fault recorder
TEST, P_UP, A_PI, TRIP
<SELECT/RESET> <+><-> FR
yellow
Display of date and time
Y = 99, M = 10,
D = 1, h = 12, m = 2,
s = 12
<SELECT/RESET> <+><->
!
green
Save parameter?
SAV?
<ENTER>
Save parameter!
SAV!
<ENTER> for about 3 s
Software Version
<TRIP> time for each part
Manual tripping
TRI?
<TRIP> three times
Inquire password
PSW?
<SELECT/RESET>/
<+>/<->/<ENTER>
Relay tripped
TRIP
<TRIP>
or fault tripping
Secret password
XXXX
<SELECT/RESET>/
<+>/<->/<ENTER>
System reset
SEG
<SELECT/RESET> for
about 3 s
2)
only Modbus Protocol
Table 5.1: Possibilities for indications by the display
Summary of Contents for MRF3
Page 1: ...MRF3 Frequency Relay...
