Woodward MRI3, Manual, Page: 29 / 68

Manual MRI3 GB Woodward
DOK-TD-MRI3 Rev.A 29
5. Operation and settings
5.1 Display
Function Display shows Pressed push button Corresponding
LED
Normal operation WW
Measured operating values Actual measured val-
ues (related to I
N
; U
E
1
))
(XR-type related to %
I
N
)
<SELECT/RESET> one time
for each L1, L2, L3, E, U
E>
, I
E>
(I
P
/I
Q
in reference to
directional feature)
Measuring range overflow max. <SELECT/RESET> L1, L2, L3, E
Setting values:
phase (I>; CHAR I>; t
I>
; I>>; t
I>>
)
earth (I
E>
; CHAR I
E
; t
IE>
; I
E>>
; t
IE>>
; U
E>
)
Current settings
Trip delay
characteristics <SELECT/RESET> one time
for each parameter I>; CHAR I>; t
I>
; I>>;
t
I>>
; LED →← I
E>
;
CHAR I
E
; t
IE>
; I
E>>
;
t
IE>>
; U
E>
Current display as second rated repeti-
tion current I
prim
(phase)/I
prim
(earth)
SEK (0.001-
50.0kA=prim) <SELECT/RESET><+><-> L1, L2, L3, E
Parameter switch/external triggering of
the fault recorder SET1, SET2, B_S2,
R_S2, B_FR, R_FR,
S2_FR <SELECT/RESET><+><-> P2
LED blinking after activation FLSH, NOFL <SELECT/RESET><+><->
Characteristics DEFT, NINV, VINV,
EINV, LINV, RINV <SELECT/RESET><+><-> CHAR I>
Characteristics DEFT, NINV, VINV,
EINV, LINV, RINV,
RXIDG <SELECT/RESET><+><-> CHAR IE>
Reset setting (only available at inverse
time characteristics 0s/60s <SELECT/RESET><+><-> I > + CHAR I> + t
I>
I
E
+ CHAR I
E
+ t
IE>
Relay characteristic angle for phase
current directional feature RCA in Grad (°) <SELECT/RESET><+><-> LED →← (green)
Warning or trip at earth fault
measuring (E- and ER/XR-types) TRIP WARN <SELECT/RESET><+><-> I
E>
Measured method of the residual
voltage U
E
1)
3 PHA; E-N; 1:1 <SELECT/RESET><+><-> U
E>
Residual voltage setting Voltage in Volt <SELECT/RESET><+><-> U
E>
Changeover of isolated (sin φ ) or
compensated (cos φ ) networks (for
ER/XR-type)
SIN <SELECT/RESET><+><->
Changeover of solidly/resistance
earthed networks (SR-type) SOLI RESI <SELECT/RESET><+><->
Switch failure protection tCBFP <SELECT/RESET> <+>->
Tripping protection switch failure pro-
tection CBFP After fault tripping
Nominal frequency f = 50/f = 60 <+> <-><SELECT/RESET>
Blocking of function EXIT <+> until max. setting value LED of blocked para-
meter
Slave address of serial interface 1-32 <+> <-><SELECT/RESET> RS
Baud-Rate 2) 1200-9600 <SELECT/RESET> <+><-> RS
Parity-Check 2) even odd no <SELECT/RESET> <+><-> RS
Recorded fault data Tripping currents and
other fault data <SELECT/RESET> one time
for each phase L1, L2, L3, E I>, I>>,
I
E>
, I
E>>
, U
E>
Save parameter? SAV? <ENTER>
Delete failure memory Wait <-> <SELECT/RESET>
Enquiry failure memory FLT1; FLT2..... <-><+> L1, L2, L3, E I>, I>>,
I
E>
, I
E>>
,
Trigger signal for the fault recorder TEST, P_UP, A_PI,
TRIP <SELECT/RESET> <+><-> FR
Number of fault occurrences S = 2, S = 4, S = 8 <SELECT/RESET> <+><-> FR
Display of date and time Y = 99, M = 10, D = 1,
h = 12, m = 2, s = 12 <SELECT/RESET> <+><-> 
Change over the blocking function PR_B, TR_B <ENTER> and <TRIP>;
<+><-> I>, I>>, I
E>
, I
E>>
or t
I>
,
t
I>>
, t
IE>
, t
IE>>
Blocking oft he protection function BLOC, NO_B <+> <-><SELECT/RESET> I>, I>>, I
E>
, I
E>>