Microelettrica Scientifica MC2-30T, Operation Manual

Page: 50 / 70

MC2-30T
Doc. N°
MO-0483-ING
Copyright 2016 Date 17.03.2022 Rev. 2 Pag. 50 of 70
17.20 - Function: Oscillo (Oscillographic Recording)
Status → Enab. No [No / Yes]
Options
→
Trig Trip [Start / Trip / OnCmd / REUserLg / FEUserLg]
Timers → tPre 0.5 s (0.01 ÷ 2) step 0.01 s
→
tPost 0.5 s (0.01
÷
8) step 0.01 s
17.20.1 - Description of variables
Enab. : Function enabling (No = Disable / Yes = Enable)
Trig : Selection of the Trigger command source (start recording):
Start = Trigger on time start of protection functions
Trip = Trigger on trip (time delay end) of protection functions
OnCmd = On Asynchronous Force trigger command
REUserLg = On rising edge of “User Logic” (see § “User Trigger Oscillo”)
FEUserLg = On falling edge of “User Logic”
tPre : Recording time before Trigger
tPost : Recording time after Trigger
17.20.2 - Operation
In the options: “ Trig = Start ” and “ Trig = Trip ”, the oscillographic recording starts respectively when any
protection function starts operating or trip.
The “ Oscillo ” Function includes the oscillographic recorder of input quantities able to store up to 10 seconds
for each record.
The number of events recorded depends on the duration of each individual recording (tPre + tPost).
In any case the number of event stored can not exceed 40 (40 x 1 sec).
Any new event exciting the memory capability, cancels and overwrites the former records (FIFO Memory).
Example:
tPre = 0.5s
= 1s → 40 Oscillographic recording
tPost = 0.5s
tPre = 2s
= 10s → 4 Oscillographic recording
tPost = 8s