Siemens 7UT51 Instruction Manual page 148

14
Operation Using the Front Panel Controls
Waveform data can be included for a specified
pre-time and post-time before and after the
middle-time. The total recording-time period is limited
by a specified maximum time.
To configure waveform recording, specify the
following:
1. Specify when an enabled and active protection
function will initiate waveform recording:
7402 INITIATION
-
Kind of protection function event (any pickup or any
trip) that will initiate storage of a waveform
recording, and which event starts the middle
STORAGE pickup initiates storage; middle
BY FD begins when pickup occurs
STORAGE trip initiates storage; middle
BY TRIP begins when pickup occurs
START WITH trip initiates storage; middle
TRIP begins when trip occurs
2. Specify the maximum recording-time (pre-time +
active-time + post-time) for recording events:
7410 T-MAX
Maximum duration for waveform recording. The
maximum duration is dependent on the frequency
chosen. For 50 Hz or 16 2/3, the maximum time is 5
seconds. For 60Hz, the maximum time is 4 seconds.
1.00 s 0.30 – 4.00 seconds
3. Specify the length of the pre-time to include in the
recording-time before the middle-time:
7411 T-PRE
-
Length of pre time during which to include waveform data.
0.10 s 0.05 – 0.50 seconds
148
4. Specify the length of the post-time to include in the
recording-time after the middle-time:
7412 T-POST
Length of time to continue recording waveform
data after the end of the middle
the maximum recording
takes precedence over this setting.
0.10 s
5. If the relay's configuration includes having a
signal-contact input directly initiate a waveform
recording (see Section 13.2 on page 126), specify
the middle-time period of the resulting fault log:
-
time.
-
time
7431 T-BINARY-IN
Length of middle
-
time
initiated by a signal
extend the middle time until the signal
inactive. Note that the maximum recording
-
time
(Address 7410) takes precedence over this setting.
0.50 s
6. If waveform recordings will be initiated manually
using the front panel keypad, specify the
middle-time period of the resulting fault log:
7432 T-KEYBOARD
Length of middle
initiated by a manual input using the front panel
keypad. Note that the maximum recording
setting (Address 7410) may end recording sooner.
0.50 s
7. The following setting can be ignored when
waveform data is exported using the VDEW
protocol:
7490 SYS LENGTH
Specification of length each fault record exported out
either of the relay's serial ports. This setting only applies
to older data communication networks using the Siemens
LSA protocol, and has no effect on networks using the
VDEW/ZVEI protocol.
660 VALUES FIX
<=3000 VAL. VAR.
-
time. Note that
-
time (Address 7410)
0.05 – 0.50 seconds
-
time when waveform recording is
contact input. A setting of ∞ will
-
-
contact becomes
0.10 – 4.00 seconds, or ∞
-
time when waveform recording is
0.10 to 4.00 seconds
fixed length of 660 values
variable length of up to 3000 values
7UT51 v3
-
time
-
time
PRIM-2330C