MICROENER IM30-CV, Operation Manual

Page: 11 / 24

IM30-CV
Doc. N° MO-0150-ING
Rev. 1
Date 14.07.2003
Copyright 2010 - Microener Firmware: 1.0X Pag 11 di 24
10.3 LASTTRIP
Display of the function which caused the last tripping of the relay plus values of the parameters at the
moment of tripping. The memory buffer is refreshed at each new relay tripping.
Display Description
Cause
xxx
Display of the function which caused the last tripping: IL; IH; OL; OH; UL; UH; I<
IA
xx.x
In
Current of phase A
IB
xx.x
In
Current of phase B
IC
xx.x
In
Current of phase C
Io xx.x In Residual current (3 x Zero Sequence current)
Ud x.xx Un Unbalance compensated voltage
10.4 TRIP NUM
Counters of the number of operations for each of th
e relay’s functions.
The memory is non-volatile and can be cancelled only with a secret procedure.
Display Description
IL xxxxxx Low set overcurrent trips
IH
xxxxxx High set overcurrent trips
OL
xxxxxx Low set Earth Fault
OH
xxxxxx High set Earth Fault
UL
xxxxxx Low set unbalance
UH
xxxxxx High set unbalance
I<
xxxxxx Undercurrent trips
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.