schmersal PSC1 - Page 166

Installation manual
HB-37420-810-01-25F-EN PSC1-C-100 Installation manual - V2.2.docx Page 166 of 201
Version: 25F
Typ
e
Switch symbol Truth table Function
5
eSwitch_1s1o
S NC A
0 0 0
1 0 0
0 1 1
1 1 0
Monitoring for NO = inactive
and NC = active
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6
t
eSwitch_1s1oT
S NC A
0 0 0
1 0 0
0 1 1
1 1 0
Time monitoring Like 5, 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
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max. 3 s
max. 3 s
7
eSwitch_2s2o
N
O1
N
C
1
NO
2
NC
2
A
1 0 1 0 0
0 1 1 0 0
0 1 0 1 1
1 0 0 1 0
Monitoring for NO1*NO2=
inactive and NC1*NC2= active
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