7.3.3.6
Wiring and Configuration for 24 V STCI Retrofits
The 24 channels of the STCI cannot be fully mapped to the 16 channels of the SUAA due to fewer channels in the YUAA.
The following table assumes that the first 16 channels of the STCI are mapped, where channels 17 to 24 would be wired to a
second SUAA’s channels 1 to 8. The STCI is internally wired for internal wetted contacts using external supplies, while the
SUAA allows for internal fed switches using internal supplies. Therefore, terminals 49 to 52 are not reconnected on the
SUAA.
STCI Screw
STCI Name
Channel
SUAA Screw
SUAA Name
Use
1
Input 1 (Positive)
1
SUAA #1 screw 1
PWR_RET for Channel 1
Positive feed to switch # 1
2
Input 1 (Signal)
1
SUAA #1 screw 3
I/O+ for Channel 1
Return path from switch #1
3
Input 2 (Positive)
2
SUAA #1 screw 2
PWR_RET for Channel 2
Positive feed to switch # 2
4
Input 2 (Signal)
2
SUAA #1 screw 4
I/O+ for Channel 2
Return path from switch #2
5
Input 3 (Positive)
3
SUAA #1 screw 7
PWR_RET for Channel 3
Positive feed to switch # 3
6
Input 3 (Signal)
3
SUAA #1 screw 9
I/O+ for Channel 3
Return path from switch #3
7
Input 4 (Positive)
4
SUAA #1 screw 8
PWR_RET for Channel 4
Positive feed to switch # 4
8
Input 4 (Signal)
4
SUAA #1 screw 10
I/O+ for Channel 4
Return path from switch #4
9
Input 5 (Positive)
5
SUAA #1 screw 13
PWR_RET for Channel 5
Positive feed to switch # 5
10
Input 5 (Signal)
5
SUAA #1 screw 15
I/O+ for Channel 5
Return path from switch #5
11
Input 6 (Positive)
6
SUAA #1 screw 14
PWR_RET for Channel 6
Positive feed to switch # 6
12
Input 6 (Signal)
6
SUAA #1 screw 16
I/O+ for Channel 6
Return path from switch #6
13
Input 7 (Positive)
7
SUAA #1 screw 19
PWR_RET for Channel 7
Positive feed to switch # 7
14
Input 7 (Signal)
7
SUAA #1 screw 21
I/O+ for Channel 7
Return path from switch #7
15
Input 8 (Positive)
8
SUAA #1 screw 20
PWR_RET for Channel 8
Positive feed to switch # 8
16
Input 8 (Signal)
8
SUAA #1 screw 22
I/O+ for Channel 8
Return path from switch #8
17
Input 9 (Positive)
9
SUAA #1 screw 25
PWR_RET for Channel 9
Positive feed to switch # 9
18
Input 9 (Signal)
9
SUAA #1 screw 27
I/O+ for Channel 9
Return path from switch #9
19
Input 10 (Positive)
10
SUAA #1 screw 26 PWR_RET for Channel 10
Positive feed to switch # 10
20
Input 10 (Signal)
10
SUAA #1 screw 28
I/O+ for Channel 10
Return path from switch #10
21
Input 11 (Positive)
11
SUAA #1 screw 31 PWR_RET for Channel 11
Positive feed to switch # 11
22
Input 11 (Signal)
11
SUAA #1 screw 33
I/O+ for Channel 11
Return path from switch #11
23
Input 12 (Positive)
12
SUAA #1 screw 32 PWR_RET for Channel 12
Positive feed to switch # 12
24
Input 12 (Signal)
12
SUAA #1 screw 34
I/O+ for Channel 12
Return path from switch #12
25
Input 13 (Positive)
13
SUAA #1 screw 37 PWR_RET for Channel 13
Positive feed to switch # 13
26
Input 13 (Signal)
13
SUAA #1 screw 39
I/O+ for Channel 13
Return path from switch #13
27
Input 14 (Positive)
14
SUAA #1 screw 38 PWR_RET for Channel 14
Positive feed to switch # 14
28
Input 14 (Signal)
14
SUAA #1 screw 40
I/O+ for Channel 14
Return path from switch #14
29
Input 15 (Positive)
15
SUAA #1 screw 43 PWR_RET for Channel 15
Positive feed to switch # 15
30
Input 15 (Signal)
15
SUAA #1 screw 45
I/O+ for Channel 15
Return path from switch #15
31
Input 16 (Positive)
16
SUAA #1 screw 44 PWR_RET for Channel 16
Positive feed to switch # 16
32
Input 16 (Signal)
16
SUAA #1 screw 46
I/O+ for Channel 16
Return path from switch #16
33
Input 17 (Positive)
17
SUAA #2 screw 1
PWR_RET for Channel 17
Positive feed to switch # 17
34
Input 17 (Signal)
17
SUAA #2 screw 3
I/O+ for Channel 17
Return path from switch #17
35
Input 18 (Positive)
18
SUAA #2 screw 2
PWR_RET for Channel 18
Positive feed to switch # 18
36
Input 18 (Signal)
18
SUAA #2 screw 4
I/O+ for Channel 18
Return path from switch #18
37
Input 19 (Positive)
19
SUAA #2 screw 7
PWR_RET for Channel 19
Positive feed to switch # 19
38
Input 19 (Signal)
19
SUAA #2 screw 9
I/O+ for Channel 19
Return path from switch #19
39
Input 20 (Positive)
20
SUAA #2 screw 8
PWR_RET for Channel 20
Positive feed to switch # 20
40
Input 20 (Signal)
20
SUAA #2 screw 10
I/O+ for Channel 20
Return path from switch #20
41
Input 21 (Positive)
21
SUAA #2 screw 13 PWR_RET for Channel 21
Positive feed to switch # 21
42
Input 21 (Signal)
21
SUAA #2 screw 15
I/O+ for Channel 21
Return path from switch #21
43
Input 22 (Positive)
22
SUAA #2 screw 14 PWR_RET for Channel 22
Positive feed to switch # 22
184
GEH-6855_Vol_II
GEH-6855_Vol_II Mark VIeS Functional Safety Systems Volume II
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