Toshiba GR200 Series Instruction Manual page 912

Signals from the
devices
Single phase signals
N/O contact
signal
N/C contact
signal
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].
2
Signal
On
from device
1
Suppressed
On
signal
A
Time.................
Figure 4.8-42 Iterative signals and signals suppressed
BI circuit and DPOS01
BI signal selected by
setting [DPOS01A-NOPSG]
BI signal selected by
setting [DPOS01A-NCLSG]
[DPOS01-EN]
&
On
[DPOS01-DEVTYPE]
1-Pole
[DPOS-NELD]
4 6 8
On On On
3 5 7
On On
[DPOS-TELD]
B
- 889 -
Signal acquisition logic in DPOS01
DPOS01
&
&
Open
&
&
Faulty
&
Intermediate
&
Close
On On
On
C
6F2S1914 (0.49)
Output ‡
To select and operate
condition logics
"DPOS01_3PH_STATE"
(512001 3103011001)
Event
Suppression
1≥
detector
"DPOS01_ F_QLT_SPP"
(512001 8103011F5F)
On
[DPOS-TELR]
E
D
GRL200 (Soft 033 & 037)