Omicron CMC 156, Reference Manual

Page: 39 / 76

Technical Data
39
5.3 Inputs
5.3.1 Binary Inputs
10 Binary inputs
Response time typ. 220 µs (debounced)
Sampling rate < 100 µs
Measurement accuracy See Table 18 and Table 19
Counter function
Counting frequency
Pulse width
3 kHz (per input)
> 150 µs (for high and low signal)
Operating threshold for
potential-free operation - Guaranteed 0:
input open or load against N > 100 k
Ω
- Guaranteed 1:
input short-circuited to N or
load against N < 20k
Ω
Operating threshold for
potential-sensing
operation 2 to 250 V
dc
to be set in the software
Hysteresis 0.36V
±
0.2V
Input resistance 70k
Ω
against reference potential (GND_BI)
Input capacity 10nF against reference potential (GND_BI)
Trigger criteria Switching of a potential-free contact or application
of direct voltage up to 250 V. Configurable
operating threshold.
Integration period 27 min
Connection 4 mm banana sockets
Isolation Functional isolation to power outputs and between
the two groups, with galvanic separation from each
other.
Reinforced isolation to all SELV interfaces and to
mains.
Configuration The binary inputs are configurable. Information
about binary input configuration is found in the
CMC software user's manual in Chapter 3
"
Configuring the binary inputs”
Table 17 Binary inputs