Woodward DTSC-200A - Limit Switch Monitoring Truth Tables (Continued); Delayed Switch Type - Truth Table; Open Switch Type - Truth Table

Manual 37941A DTSC-200A - ATS Controller - Operation
© Woodward Page 25/37
Table 3-2 is valid for the following settings:
• Parameter 3424 "Transfer switch type" is configured to "Delayed"
• Parameter 3434 "Use limit sw. OPEN replies" is configured to "NO"
S1 preferred
98.11 LM:
S1 Priority
S1 source OK
LM 19.01
S2 source OK
LM 19.11
S1 closed signal
S2 closed signal
Actual
Expected
0
0
0
0
0
OK
OK
0
0
0
0
1
OK
OK
0
0
0
1
0
OK
OK
0
0
0
1
1
S1 S2
S2
0
0
1
0
0
OK
OK
0
0
1
0
1
OK
OK
0
0
1
1
0
OK
OK
0
0
1
1
1
S1 S2
S2
0
1
0
0
0
OK
OK
0
1
0
0
1
OK
OK
0
1
0
1
0
OK
OK
0
1
0
1
1
S1 S2
S1
0
1
1
0
0
OK
OK
0
1
1
0
1
OK
OK
0
1
1
1
0
OK
OK
0
1
1
1
1
S1 S2
S2
1
0
0
0
0
OK
OK
1
0
0
0
1
OK
OK
1
0
0
1
0
OK
OK
1
0
0
1
1
S1 S2
S1
1
0
1
0
0
OK
OK
1
0
1
0
1
OK
OK
1
0
1
1
0
OK
OK
1
0
1
1
1
S1 S2
S2
1
1
0
0
0
OK
OK
1
1
0
0
1
OK
OK
1
1
0
1
0
OK
OK
1
1
0
1
1
S1 S2
S1
1
1
1
0
0
OK
OK
1
1
1
0
1
OK
OK
1
1
1
1
0
OK
OK
1
1
1
1
1
S1 S2
S1
Table 3-2: Limit switch monitoring - truth table for "Delayed" limit switch w/o "Open" replies
Limit switch monitoring is disabled for the following settings:
• Parameter 3424 "Transfer switch type" is configured to "Standard"
• Parameter 3434 "Use limit sw. OPEN replies" is configured to "NO"
Table 3-3 is valid for the following settings:
• Parameter 3424 "Transfer switch type" is configured to "Delayed" Parameter 3434 "Use limit sw. OPEN
replies" is configured to "YES"
S1 preferred
98.11 LM:
S1 Priority
S1 source
OK
LM 19.01
S2 source
OK
LM 19.11
S1 closed signal
S2 closed signal
S1 open signal
S2 open signal
Actual
Expected
0
0
0
0
0
0
0
-----
S2 S1O
0
0
0
0
0
0
1
S2O
S2 S1O
0
0
0
0
0
1
0
S1O
S2 S1O
0
0
0
0
0
1
1
OK
OK
0
0
0
0
1
0
0
S2
S2 S1O
0
0
0
0
1
0
1
S2 S2O
S2 S1O
0
0
0
0
1
1
0
OK
OK
0
0
0
0
1
1
1
S2 S1O S2O
S2 S1O
0
0
0
1
0
0
0
S1
S2 S1O
0
0
0
1
0
0
1
OK
OK