Manual MRI3-ITER GB
Woodward
DOK-TD-MRI3 ITERE Rev.A
25
5.1.1 LEDs
LED-Name Mode
Colour
LED-Display
Meaning
L1, L2, L3, E
Display of measur-
ing values
green
continuously Current measuring
(phase or earth current)
A
and
T
Display of measur-
ing values
yellow (MRI3-ITE)
red/green (MRI3-
ITER)
continuously Measuring of the temperature
equivalent (%)
T
Calculated value
yellow (MRI3-ITE)
red (MRI3-ITER)
Time until release, after I
B,T
>*k
T
has
been exceeded
L1, L2, L3, E
Pickup
red
flashing
Over current pickup (phase or earth
current)
IP, IQ*
Display of measur-
ing values
yellow
continuously active and reactive current compo-
nent
for earth current
A
and
T
Pickup
yellow
flashing
Base current exceeded (I
B
*k)
A
and
T
*
Pickup
green
flashing
Base current exceeded (I
B
*k)
A
and
T
*
Pickup
red
flashing
Base current exceeded (I
B
*k)
L1, L2, L3, E,
(I
>
, I
>>
, I
E>
,
I
E>>
)
After pickup
red
flashing
(short)
Pickup signalized (In combination
with trip element only)
L1, L2, L3, E
Tripping
red
continuously Over current tripping (phase or earth
current)
L1, L2, L3, E,
A
and
T
(I
B,A
, I
B,T
)
After pickup
yellow
flashing
(short)
Pickup signalized (In combination
with trip element only)
A
Warning at k
2
100%
yellow/MRI3-ITE
green/MRI3-ITER
continuously Temperature limit of overload low
set element reached
T
Tripping at k
2
·
100%
yellow / MRI3-ITE
red / MRI3-ITER
continuously Temperature
limit of trip element
reached
A
*
Warning at k
2
·
100%
green continuously
Temperature limit of overload low
set element reached
T
*
Tripping at k
2
·
100%
red continuously
Temperature limit of trip element
reached
I
B,A
Setting green continuously
Setting
switch
point
k
A
Setting red
continuously
Define
constant
I
B,A
Setting
green
continuously Time until activation of alarm
I
B,A
(
A
)
Pickup
green
flashing
Base current exceeded (I
B,A
*k)
I
B,A
(
A
)
Tripping
red
flashing
Temperature limit of overload low
set element reached
I
B,T
Setting
green
continuously Setting switching point
k
T
Setting red
continuously
Define
constant
I
B,T
Setting
green
continuously Time until activation of alarm
I
B,A
(
T
)
Pickup
red
flashing
Base current exceeded (I
B,T
*k)
I
B,T
(
T
)
Tripping red
continuously
Temperature limit of trip element
reached
C
Setting
green
continuously Cooling time constant
W
Setting
red
continuously Warming up constant
I>
Setting
green
continuously Setting switching point I>
CHAR I>
Setting
green
continuously Select characteristic
t
I>
Setting
red
continuously Setting time delay t
I>
t
I>
, CHAR I>
Setting
red/green
continuously Reset mode activating
I>, t
I>
Pickup
red
flashing
Pickup of I>
I>, t
I>
Tripping red
continuously
I>
tripped
I>>
Setting
green
continuously Setting switching point I>>
t
I>>
Setting
red
continuously Setting time delay t
I>>
I>>, t
I>>
Pickup
red
flashing
Pickup of I>>
I>>, t
I>>
Tripping
red
continuously
I>>
tripped
I
E>
Setting
green
continuously Setting switching point I>
CHAR I
E>
** Setting
green
continuously
Select
characteristic
t
IE>
Setting
red
continuously Setting time delay t
IE>
t
IE>
, CHAR
I
E
**
Setting
red/green
continuously Reset mode activating
*
Setting/tripping
red
continuously Directional feature for earth current