78
NV021 - Manual - 08 - 2012
CHARACTERISTICS
Oscillography
Trigger Setup
Following parameters, available inside the
Set \ Oscillography \ Trigger Setup
menu, are user-pro-
grammable:
Pre-trigger time
and
Post-trigger time
.
Element pickup trigger
; the information recording starts when a state transition on any protec-
tive element occurs if the parameter is set to
ON
.
Trigger from outputs
; the information recording starts when a state transition on the selected
output relay occurs if the parameter is set (K1...K6).
Binary input trigger
; the information recording starts when a state transition on the selected
binary input occurs if the parameter is set to
ON
.
Trigger from inputs
; the information recording starts when a state transition on the selected
binary input occurs if the parameter is set (IN1...INx).
80% Buffer alarm
; when the 80% of the buffer space is reached an alarm may be issued if the
parameter is set to
ON
.
Set sampled channels
The desired sampled quantities may be select inside the
Set \ Oscillography \ Set sampled channels
menu (
u
L1
,
u
L2
,
u
L3
).
Set analog channels
The desired sampled quantities may be select inside the
Set \ Oscillography \ Set analog channels
menu.
Everyone of twelve analog channel may be associated to one of the selected measures (Frequency,
U
L1
,
U
L2
,
U
L3
,
U
1
,
U
2
,
df/dt,
T1...T8
[1]
).
Set digital channels
The desired digital quantities may be select inside the
Set \ Oscillography \ Set digital channels
menu.
Everyone of twelve digital channel may be associated to one of the selected I/O signal (K1... K6, K7...
K10, IN1, IN2, IN3...IN42
[2]
).
Note 1 The 26 menu is available when the MPT module is enabled
Nota 2 The output relay K7...K10 and binary input IN3...IN42 states is meaningful when the I/O circuits are present (MRI and MID16 modules)
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trigger.ai
Trigger oscillography
Trigger
Time
pre-trigger
post-trigger
