Omicron CMC 356, User Manual

Page: 59 / 142

Technical Data
59
Table 6-16:
Data for potential-sensing
operation
Table 6-17:
Data for potential-free
operation
Data for Potential-Sensing Operation
Threshold voltage data per input
range Setting range Resolution
Range I
Range II 0...20V
>20...300V 50mV
500mV
Max. input voltage CAT III/ / 300 V
rms
CAT IV / 150 V
rms
Threshold voltage accuracy
1
1
Applies to positive voltage signal edge; value shown in % of reading (rd.) + % of upper range
value (rg.)
5% of rd. + 0.5% of rg.
Threshold voltage hysteresis Range I: typ. 60 mV
Range II: typ. 900 mV
Input impedance
2
Threshold 0...20V
Threshold 20...300V
2
Refer to figure 5-2, "Simplified circuit diagrams of binary inputs and outputs (CMC 356
standard, without option ELT-1 installed)" on page 28.
210 k
Ω
135 k
Ω
Data for Potential-Free Operation
1
1
Refer to figure 5-2, "Simplified circuit diagrams of binary inputs and outputs (CMC 356
standard, without option ELT-1 installed)" on page 28.
Trigger criteria
Logical 0: R > 100 k
Ω
Logical 1: R < 10 k
Ω
Input impedance
216 k
Ω