07AI91 GJR5251600R0202 AC31 ABB input and output unit

Model ABB 07AI91
Belonging to Advant Controller 31 (AC31) series, CS31 bus remote I/O
Module type 8-channel universal analog input (AI)
Power supply 24 VDC
Power consumption is about 3 W
Working temperature -20 ° C to+60 ° C
Protection level IP20
Size approximately 90 mm x 30 mm x 22 mm
Weight approximately 0.48 kg
Bus interface CS31 (RS-485), electrical isolation
Configuration method DIP switch setting address and signal type
2、 Channel and signal configuration (8 channels, can be paired with software/hardware configuration)
1. Voltage/current signal
Voltage: ± 10 V, ± 5 V, ± 500 mV, ± 50 mV
Current: 0-20 mA, 4-20 mA (requires external 250 Ω shunt resistor)
Resolution: 12 bits+symbol (1 LSB=0.1 ° C for temperature)
Accuracy: ± 0.5% F.S. (25 ° C)
Input impedance: Voltage input 2 M Ω
2. Temperature signal (RTD/thermocouple)
RTD：Pt100、Pt1000， Measurement range -50 ° C to+400 ° C
Thermocouple: J, K, S type, built-in linearization
Wiring method: Supports 2/3/4 wire system, maximum wire resistance 50 Ω (4 wires)
3、 Electrical and Performance Parameters
Channel isolation: CS31 bus and on-site electrical isolation
Update rate: Approximately 250 ms for all channels
Common mode rejection ratio:>100 dB @ 50/60 Hz
Diagnostic function: Channel disconnection, over range, self calibration
Wiring: Screw terminal, wire diameter 0.08-1.5 mm ²
4、 Typical applications
Process control: temperature, pressure, flow rate, liquid level collection
Mechanical automation, packaging, and food processing production lines
Metallurgical, chemical, power, and water treatment systems
Building Automation: Temperature, Humidity, and Pressure Difference Monitoring

ABB 07AC91

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