MICROELETTRICA MC40-SEF, Operation Manual

Page: 26 / 36

MC40-SEF
Doc. N°
MO-0475-ING
Copyright 2012 FW: 1320.38.01.x Date 06.09.2022 Rev. 1 Pag. 26 of 36
12. Menu and Variables
12.1 - Real Time Measurements
Scrolling display of the Real Time Measurements is the Default operation.
Scrolling can be stopped at any of the measurements and restarted by pressing the Reset button
.
When stopped on one variable, appears aside the measurement and the different available measurements
can be selected by the buttons.
Display Description
I = 0 – 65535 %In Largest of the 3 phase-currents (% of rated current)
IA = 0 – 65535 A RMS value of Phase A current
IB = 0 – 65535 A RMS value of Phase B current
IC = 0 – 65535 A RMS value of Phase C current
IN = 0.0 – 6553.5 A RMS value of Neutral Current
Tem = 0 - 65535 %T Actual temperature rise
12.2 - Meas (Instantaneous Measurements)
Real time measurements can be frozen at
any moment selecting the menu “Instant Measure”
“ R eal T ime M eas ”
“Meas”
“1 st Measurement
other measurements
to go back to “ Meas ”
Display Description
I = 0 – 65535 %In Largest of the 3 phase-currents (% of rated current)
IA = 0 – 65535 A RMS value of Phase A current (Primary Amps)
IB = 0 – 65535 A RMS value of Phase B current (Primary Amps)
IC = 0 – 65535 A RMS value of Phase C current (Primary Amps)
IN = 0.0 – 6553.5 A RMS value of Neutral Current
Tem = 0 - 65535 %T Actual temperature rise
12.3 - Counter (Operation Counters)
The operation of any of the function here below
reported, is counted and recorded in the menu “Counters” .
“ R eal T ime M eas ”
“Counter”
“1 st counters
other counters
to go back to “Counter”
Display Description
T> = 0 – 65535 Number of Thermal Image
I> = 0 – 65535 Number of 1 st Overcurrent (time delayed) trip
I>> = 0 – 65535 Number of 2 nd Overcurrent (time delayed) trip
IH = 0 – 65535 Number of 3 rd Overcurrent (time delayed) trip
Io> = 0 – 65535 Number of 1 st time delayed Neutral Fault trip
Io>> = 0 – 65535 Number of 2 nd time delayed Neutral Fault trip
IoH = 0 – 65535 Number of 3 rd time delayed Neutral Fault trip
So> = 0 – 65535 Number of Sensitive Neutral Fault trip
BF = 0 – 65535 Number of operations of Breaker Failure
RTD = 0 – 65535 Number of External Trip commands
I.R.F. = 0 – 65535 Number of Internal Relay Faults
HR = 0 – 65535 Number of HW recovery operations