MM30-DK
Doc. N° MO-0050-ING
Rev.
2
Pag.
22
of
36
Copyright - 2010 - Microener
10.3 - LASTTRIP
Recording of the last 5 trippings of the relay and values of the parameters at the moment of tripping.
The memory buffer is refreshed at each new relay tripping.
Display
Description
LastTr-x
Indication of the recorded event (x= 0 to 4)
Example: Last event (LastTr -0)
Last but one event (LastTr-1)
etc...
xxXXXxx
Date : Day, Month, Year
xx:xx:xx
Hour : Hours, Minutes, Seconds
Cause
xxx
Function which caused the last tripping:
T>; Is>; I>; O>; I<; LR; StN; ITr; SpC; RTD; RT.
IA
xxxxx
In
Current of phase A.
IB
xxxxx
In
Current of phase B.
IC
xxxxx
In
Current of phase C.
Io
xxxxx
%n
Earth fault current.
Id/m
xxx
%
Positive sequence component of current.
Is/m
xxx
%
Negative sequence component of current.
T/Tn
xxx
%
Motor heating
Uo
xxxxx
V
Zero-sequence voltage
oxxxxx°
Io/Uo phase displacement angle in degrees.
10.4 - TRIP NUM
Counters of the number of operations for each of the relay functions.
The memory is non-volatile and can be cancelled only with a secret procedure.
Display
Description
T>
xxxxx
Motor overload.
Is>
xxxxx
Current unbalance.
I>
xxxxx
Overcurrent.
O>
xxxxx
Earth fault.
I<
xxxxx
No load running.
LR
xxxxx
Locked rotor.
StN>
xxxx
No of consecutive startings.
ITr
xxxx
Too long starting.
RT
xxxx
Remote trip
1
xxxx
Single phasing
11. READING OF PROGRAMMED SETTINGS AND RELAY'S CONFIGURATION
Enter the mode "SET DISP", select the menu "SETTINGS" or "F
RELAY", scroll information
available in the menu by keys "+" or "-".
SETTINGS= values of relay's operation parameters as programmed
F
RELAY= output relays associated to the different functions as programmed.
