Toshiba GR200 Series - (i)-3 Event suppression

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 889 -
Signal acquisition logic in DPOS01
“DPOS01_3PH_STATE”
(512001 3103011001)
To select and operate
condition logics
[DPOS01-DEVTYPE]
1-Pole
Open
Faulty
Intermediate
Close
Event
Suppression
detector
BI signal selected by
setting [DPOS01A-NOPSG]
[DPOS01-EN]
On
&
BI signal selected by
setting [DPOS01A-NCLSG]
N/O contact
signal
N/C contact
signal
Single phase signals
&
&
1≥
&
&
&
&
DPOS01
Signals from the
devices
Output ‡
“DPOS01_ F_QLT_SPP”
(512001 8103011F5F)
BI circuit and DPOS01
Figure 4.8-41 Acquisition of single-phase signal at DPOS01
‡Note: In Figure 4.8-41 two signals can be issued “DPOS01_3PH_STATE” and
“DPOS01_F_QLT_SPP”, which are the same as the ones of the Figure 4.8-40.
Event suppression
If the status of a device “chatters” for a short time, the DPOS function will receive iterative
signals from the device. Such iterative signals can cause extra burden for the DPOS function;
hence, event suppression can be required to reduce additional burden created.
The DPOS function has an event suppression detector. The user should take into account
of the scheme switches [DPOS-NELD], [DPOS-TELD] and [DPOS-TELR]†. Set On for scheme
switch [DPOS01-SPPEN].
1 3 5 7
Signal
from device
On
On
On
On
On
On
On
On
2 4 6 8
On
On
On
[DPOS-TELD]
[DPOS-TELR]
[DPOS-NELD]
Suppressed
signal
A
C
D
E
B
Time.................
Figure 4.8-42 Iterative signals and signals suppressed