Infranor XtracontrolEC22, Руководство пользователя

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User Manual V1.1a | XtracontrolEC22
Operating modes of the analogue inputs
NOTICE
Damage to channel
High voltages can damage analogue channels, stopping them from
working correctly.
▶
Ensure the input voltage does not exceed ±30 V.
Operating mode: voltage input AI (U)
Feature Value Description
Connections per input – AI (U/T) and AGND or AI (U) and AGND;
connect screening with AGND.
Measuring range –10 to +10 V –
Input impedance in
signal range 100 kΩ between AI (U/T) and AGND or
between AI (U) and AGND
Max. errors at 25°C ±0.25% (±50 mV) –
Temperature coefficient ±40 ppm/K
(±0.4 mV/K) –
Digital resolution 24 bit –
Data format in
user program 32 bit real (floating-point number) in millivolts (mV)
Maximum permissible
permanent overload Max. ±30 V compared
to AGND ±30 V = max. voltage on AI channel
Output of digital value
in case of overload – If a voltage of ±10 V is applied to an AI (U), a
plausible value is still given up to approx. ±15 V.
The specified accuracy is only valid for the range –
10 to +10 V.
From a voltage of ±16 V, the values are distorted
considerably and from +23 V an error bit is set
which can be queried in the application program.
Input type – Unsymmetrical voltage metering (single-ended)
Reference potential AGND –
Dynamic characteristics
Analogue filtering Second-grade low-pass
filter; time constant
T = approx. 500 µs –
Greatest temporary
deviation during
electrical error testing
according to
IEC 61131-2 0.5% of measuring
range –
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