MICROENER MM30-W, Operation Manual

Page: 13 / 29

MM30-W
Doc. N° MO-0117-ING
Rev. 1
Pag. 13 of 29
Copyright - 2010 - Microener
10.3 - LASTTRIP
Display of the function which caused the last tripping 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; PF<; U>; U<; f>; f<; 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 On Earth fault current.
I1/m xxx % Positive sequence component of current.
I2/m xxx % Negative sequence component of current.
T/Tn xxx %
Motor heating
U xx.xx Un
Phase-to-phase voltage
f xx.xx Hz
Frequency
PF x.xx C
Power Factor (0.00
– 1.00) C = Lead / L = Lag
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.
I2> 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.
PF< xxxx
Low power factor.
U> xxxx
Overvoltage.
U< xxxx
Undervoltage
f> xxxx
Overfrequency
f< xxxx
Underfrequency
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.