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UMG 96-PA
/
UMG 96-PA
MID
57
13.14 “Trailer pointer” function
The “trailer pointer” function describes the
three highest average values of value types via
a defined period duration (time base).
·The calculated average values can be called up
via the GridVis
®
software and via a parameter
with time stamp.
·The period duration (time base), synchronization
and capture time can be set in the GridVis
®
software by setting the corresponding
parameters.
·The average value is calculated using the
measured values of the following value types:
- Current L1
- Current L2
- Current L3
- Active power L1
- Active power L2
- Active power L3
- Total active power (L1...L3)
- Apparent power L1
- Apparent power L2
- Apparent power L3
- Total apparent power (L1...L3)
PerFod duratFon (tFme base):
Period duration that can be set individually
in seconds for calculating the average values
throughout this period (duration of the
measured value recording). When an internal
synchronization is selected, the average values
are recalculated after the set period of time has
expired.
SynchronFzatFon mode:
A synchronization determines a start time for the
calculation periods of the average values. Here,
synchronization is triggered
·By the internal clock
(Fnternal synchronFzatFon)
;
·By setting a parameter
(vFa Modbus)
; or
·Optionally via the digital input 3
(external
synchronFzatFon)
.
Capture tFme:
The
Capture tFme
that can be set individually
describes a time window in which an incoming
pulse performs a synchronization of the time.
If the device receives a pulse outside of the
capture time, the calculated average values are
deleted and the time is reset.
Note: The capture tFme settFni - for example Fn
the GrFdVFs
®
software — descrFbes half the tFme
wFndow of the entFre capture tFme!
13.14.1 Internal synchronization
The average values are calculated after the
configurable period duration (time base) has
expired. The internal synchronization occurs at
the full minute if it describes a multiple of the
time base.
NOTE
To perform an
Fnternal synchronFzatFon
, the
options
SynchronFzatFon vFa Modbus
AND
SynchronFzatFon vFa the dFiFtal output 3
must be
disabled!
Fig.
SynchronFzatFon prFncFple
Capture
time
Capture
time
Capture
time
Capture
time
Time
base
Time
base
Time
base
Time of the
average value
calculation
Time of the
average value
calculation
Time of the
average value
calculation
Time of the
average value
calculation
Time
base
[min]
Sync 1
(Time)
Sync 2
(Time)
Sync 3
(Time)
Sync 4
(Time)
2
09:00:00 AM 9:02:00 AM 9:04:00 AM 9:06:00 AM
5
09:00:00 AM 9:05:00 AM 9:10:00 AM 9:15:00 AM
15 09:00:00 AM 9:15:00 AM 9:30:00 AM 9:45:00 AM
Fig.
Examples of an Fnternal synchronFzatFon wFth dFfferent
tFme bases
