Analog input modules
D300529 0115 - BL67 I/O modules6-8
6.2.1 Technical data
Table 6-2:
Technical data
Designation BL67-2AI-I
No. of channels 2
Nominal voltage from supply terminal 24 VDC
Voltage range 18 to 30 VDC
Nominal current consumption from 5 VDC (mod-
ule bus) I
MB
≤ 35 mA
Nominal current from supply terminal (field) I
L
≤ 12 mA
Power loss of the module, typical P
MAX
< 1 W
Input current 0/4 to 20 mA
Max. input current 50 mA
Isolation voltage
U
TMB
(module bus/field) min. 500 V
eff
U
Fe
(field/functional earth) min. 50 V
AC
channel/channel none
channel/field supply none
channel/system supply 500 V
eff
Input resistance (burden) < 125 Ω
Cutoff frequency (-3 dB) ≥ 50 Hz
Basic error at 23 °C/73.4 °F ± 0,2 %
Repeat accuracy 0,05 %
Temperature coefficient ≤ 300 ppm/°C
Resolution of the A/D converter 16 bit
Measuring principle Delta Sigma
Measurement value representation – 16 Bit: two's complement coded
or
– 12 bit left-justified
two's complement coded (even negative values
possible),
binary number without coding (only positive
values possible)
I
SENS
(sensor supply from V
sens
) ≤ 250 mA; short-circuit protected in gateway or
Power Feeding module
To Next Page
Loading...
