ABB FPTC-02 - Wiring Example 2

￭ Wiring example 2
With an FSO module, two-channel connection. This connection is
SIL2 capable (redundancy between STO channels).
11
12
21
22
XSTO1
PTC
XSTO
T1 T2
XFLT
FPTC
OUT
SGND
IN1
IN2
SLOT
1/2/3
X100
XSTO2
X114
FSO
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
X113
X111
1
2
3
4
1
3 ~
Ex M
2
Control unit1
Potentially explosive atmosphere2
44 Electrical installation
30