Toshiba GR 200 Series, Instruction Manual

Page: 613 / 1563

6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 592 -
Signal acquisition logic in DPSY01
“DPSY01_3PH_STATE”
(511001 3102011001)
To select and operate
condition logics
[ DPSY01-DEVTYPE ]
1-Pol e
Open
Faulty
Intermediate
Close
Event
Suppression
detector
BI signal selected by
setting [ DPSY01A-NOPSG ]
[ DPSY01-EN ]
On
&
BI signal selected by
setting [ DPSY01A-NCLSG ]
N/O contact
signal
N/C contact
signal
Single phase signals
&
&
1
≥
&
&
&
&
DPSY01
Signals from the
devices
Output
‡
“DPSY01_
F_QLT_SPP
”
(511001 8102011F5F)
BI circuit and DPSY01
Figure 4.2-41 Acquisition of single-phase signal at DPSY01
‡Note: In Figure 4.2-41 two signals can be issued “DPSY01_3PH_STATE” and
“DPSY01_F_QLT_SPP”, which are the same as the signals in the Figure 4.2-40.
Event suppression
If the status of a device “chatters” for a short time, the DPSY function will receive iterative
signals from the device. Such iterative signals can cause extra burden for the DPSY function;
hence, event suppression can be required to reduce the additional burden created.
1 3 5 7
Signal
from device
2 4 6 8
[
DPSY-TELD
] [
DPSY-TELR
]
[
DPSY-NELD
]
Suppressed
signal
A
C
D
E B
Time.................
Figure 4.2-42 Iterative signals and signals suppressed
Figure 4.2-42 shows that the iterative signals received from the device have been
suppressed by the event suppression function. The suppression commences on receipt of the
seventh signal (at Time ‘B’). This is because the function can count the iterative number of
incoming signals. Detection commences at Time ‘A’, the setting [
DPSY-NELD
] is provided so
that the suppression commences at Time B. The setting [
DPSY-TELD
] is pertains to the