Installation manual
PSC1-C-10 Installation manual V2.6
Page 118 of 173
Version: 57E
5.12.5
Extended monitoring with 2 proximity switches
For extended monitoring the two status states of the counting signals are logically compared. The
cogwheel must always guarantee a 'high' level of at least one of the two input signals
Signal A
Signal B
Result
0
0
False
1
0
True
0
1
True
1
1
True
In addition, the following parameters must be met.
Max. blanking 0 signal: 50%
Min. overlap:
10%
The easiest way to achieve this is to use a 2: 1 division. This also simplifies the correct assembly of the
associated sensors. The following picture illustrates this for a radial arrangement of the sensors:
Signal level:
24 V/0 V
Max. count pulse frequency:
4 kHz
Min. count pulse frequency:
1 Hz
De-bounced switching logic
Diagnostics:
Diagnostics
Parameter
Fault threshold
Monitoring of supply voltage
not possible
Fixed value 24V
+/- 20% +/-2% (measuring
tolerance)
T=100%
33,3%
16,7
33,3%
16,7
Desired theoretical waveform
