Weidmuller SAI Active Universal Pro Series, Руководство пользователя

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Connecting the SAI Distributor
Technical data
Supply voltage 24 V DC
Limit values 18 V DC to 30 V DC
Contact load per pin 3 A
Reverse polarity protection yes
Current input module approx. 50 mA
Analogue inputs 4 channels
Plug-in stations AI0, AI1, AI2 and AI3
Grouping One group for all four channels with a common earth
Permissible input voltage -30 V DC to +30 V DC (protected against polarity reversal)
Input Type Differential measurement between pin 2 and pin 4
Sampling period 5 -250 ms adjustable per analogue input
Accuracy < 0.2 % from the upper limit of effective range
Offset error < 0.1 % from the upper limit of effective range
Linearity < 0.05 %
Temperature coefficient < 300 ppm/K of upper limit of effective range
Voltage ranges 0 to +10 V or –10 V to +10 V
Max. input voltage based on GND ± 35 V based on GND (continuous)
Input resistance > 100 k
Ω
Resolution from 0 V to +10 V 11-bit, 0 to 2047 units
Resolution from -10 V to +10 V 12-bit, 0 to 4095 units
Nominal value 2047 units and 4095 units respectively
Current ranges 0 to 20 mA or 4 to 20 mA
Max. input current, differential -50 to +50 mA
Input resistance < 125
Ω
Resolution 0 to 20 mA 12-bit, 0 to 4095 units
Resolution 4 to 20 mA 12-bit, 819 to 4095 units, with evaluation of diagnosis
when current falls below 4 mA
Nominal value 4095 units
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