schmersal PSC1 - 11 Switch Types

Installation manual
HB-37420-810-01-25F-EN PSC1-C-100 Installation manual - V2.2.docx Page 165 of 201
Version: 25F
11 Switch types
Typ
e
Switch symbol Truth table Function block Function
1
eSwitch_1o
NC A
0 0
1 1
Truth table behaves like an
normally open contact, only the
symbol is a normally closed
contact
Öffner
Ausgang
2
sSwitch_1s
S A
0 0
1 1
Normally open contact, like type
1
Schließer
Ausgang
3
eSwitch_2o
NC1 NC2 A
0 0 0
1 0 0
0 1 0
1 1 1
AND operation both inputs
Öffner 2
Ausgang
Öffner 1
4
t
eSwitch_2oT
NC1 NC2 A
0 0 0
1 0 0
0 1 0
1 1 1
Time monitoring Like 3, however with time
monitoring of state changes.
On signal change on one of the
NC, complementary signal must
follow within time t=3 s. If not
change to fault and O=0
Öffner 2
Ausgang
Öffner 1
max. 3 s
max. 3 s