USER MANUAL 1.2 | B-FORTIS CC-PRIME SERIES
Berghof Automation GmbH | Arbachtalstrasse 26 | 72800 Eningen |
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Operating mode: voltage input AI (U)
Feature
Value
Description
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
–
Operating mode: voltage input AI (I)
Feature
Value
Description
Connections per
input
–
AI (I) and AGND;
connect screening with AGND.
Protection
–
Thermal current limitation
Measuring range
–20 to +20 mA
Technical current direction into AI (I)
Load impedance
typ. 20
Ω
–
Max. errors at 25°C
±0.2% (±80 µA)
–
Temperature
coefficient
±40 ppm/K
(±0.8 µA/K)
–
Digital resolution
24 bit
–
Data format in
user program
32 bit real
(floating-point number) in milliamps (mA)
Maximum
permissible
permanent overload
Max. ±25 mA
–
Output of digital
value in case of
overload
–
If a current greater than ±20 mA flows into an
AI (I), a plausible value is still given up to
approx. ±25 mA.
