Schweitzer Engineering Laboratories SEL-311L, Instruction Manual, Page: 209 / 734

Date Code 20010625 Trip and Target Logic 5-33
SEL-311L Instruction Manual
From Figure 3.31 M3P
VPOLV
50PP3
(Advanced Setting)
|IAB|
|IBC|
|ICA|
From Figure 3.31 M3P
From Figure 3.34 Z3G
From Figure 3.46 67Q3
From Figure 3.45 67G3
From Figure 3.46 50Q3
From Figure 3.45 50G3
From Figure 3.30 M2P
From Figure 3.33 Z2G
From Figure 3.46 67Q2
From Figure 3.45 67G2
From this Figure DSTRT
BT
(Setting)
Z3XT
To Figure 5.4
DSTRT
NSTRT
STOP
BTX
0
2 CYC
_
+
_
+
_
+
0
1/4 CYC
Z3XPU
Z3XD
0
21SD
0
67SD
0
BTXD
Z2PGS
67QG2S
M311L029
Relay
Word
Bits
Relay
Word
Bits
(unless
noted)
To Figure 5.4
Figure 5.16: DCB Logic
Installation Variations
Figure 5.18 shows output contacts OUT105, OUT106, OUT107, and OUT104 connected to
separate communications equipment, for the two remote terminals. Both output contact pairs are
programmed the same (OUT105 = DSTRT + NSTRT and OUT107 = DSTRT + NSTRT;
OUT106 = STOP and OUT104 = STOP).
Depending on the installation, perhaps one output contact (e.g., OUT105 = DSTRT + NSTRT)
can be connected in parallel to both START inputs on the communications equipment in
Figure 5.18. Then output contact OUT107 can be used for another function.
Depending on the installation, perhaps one output contact (e.g., OUT106 = STOP) can be
connected in parallel to both STOP inputs on the communications equipment in Figure 5.18.
Then output contact OUT104 can be used for another function.