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These pieces of information provide clear guidance for understanding the configuration, alarm mechanism, and importance of redundant wiring of Tricon power modules.
BEIJER UCT-35-924｜Analog Input Module｜
1. Analog Input (AI) Channel Configuration
Number of channels: 4 independent channels (simultaneous monitoring of 4 analog signals)
Signal types (configurable):
Current 4–20 mA DC (supports 2-wire/4-wire sensors, e.g. pressure or level transmitters)
Voltage 0–10 V DC (e.g. potentiometers, voltage-type temperature sensors, valve position feedback)
Accuracy: ±0.1 % FS
Resolution: 16-bit (≈0.006 mA resolution for 4–20 mA signals)
Sampling rate: Up to 10 Hz per channel (configurable)
Input impedance:
Voltage ≥100 kΩ
Current ≤250 Ω (meets 4–20 mA load requirement)
BEIJER UCT-35-924｜Analog Input Module｜
2. Communication Interface and Protocol
Protocol: Modbus RTU (RS-485 physical layer), universally compatible with PLCs, HMIs, SCADA
Physical port: 1 × RS-485 differential (photoelectric isolation, 2-wire A/B), strong EMI immunity
Configurable parameters:
Baud rate 9 600–115 200 bps (default 9 600 bps)
Data bits 7/8, stop bits 1/2, parity none/odd/even
3. Power Supply and Electrical Protection
Input voltage: 24 VDC (industrial standard)
Voltage range: 18–32 VDC (wide range)
Power consumption: ≤3 W (typical)
Electrical isolation:
2.5 kV AC isolation between communication port and power/AI channels (IEC 61010)
Some models support inter-channel isolation (see manual)
Protection: Built-in AI channel overvoltage protection (±30 VDC instantaneous) prevents module damage due to wiring errors or sensor faults
By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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