Seg MRI3-C, Manual, Page: 74 / 78

74 TB MRI(K)3-C 03.02 E
C ontrol functions
LED Function Unit Default Actual
settings setting
Parameter set change-over switch Set 1/2 1 2
Trip+t>+CB green
(Trip+t>+Block)*
Block/Trip - time s EXIT
DI+Trip+t>
Trip delay time at ext. Trip s 0.10
DI+t
CI
+t>
Dead time for Trip/Restore s EXIT
CB green+t>
Tripping time for CB failure protection s EXIT
I>+I>>+I
E
>+I
E
>>+
CB green
Alarm relays drop down at CB failure protection NO
()* LED-Display at MRI3
Parameters for the fault recorder
LED Function Default Actual Unit
setting setting
FR Number of recordings 4
FR Storage of the recording at the event TRIP
FR Time period prior to the trigger impulse s 0.05
Interface parameters
LED Function Default setting Actual set-
ting
RS Slave Address of the serail interface 1
RS Baud rate of the serial interface 9600
RS Parity check of the serial interface even
Assignment of the blocking functions
Default setting* Actual setting LED Function
Set 1 Set 2 Set 1 Set 2
I>+I>>+I
E
>+I
E
>>
(t
I
>+t
I
>>+t
IE
>+
t
IE
>>)*
Switch over for protection blocking or trip
blocking PR_B PR_B
I>
Overcurrent element NO_B NO_B
I>>
Short-circuit element, in operation BLOC BLOC
IE>
Earth current element NO_B NO_B
IE>>
Earth short.circuit current element NO_B NO_B
CB grün
CB failure protection NO_B NO_B
DI+Trip
External trip NO_B NO_B
*NO_B = not blocked; BLOC = blocked; PR_B = blocking actuation; TR_B = blocking trip