BACHMANN AIO288/1

Technical Specifications:

Total analog input channels: 8; total analog output channels: 8. Input signal types: ±10 V, ±1 V, ±20 mA, Pt100, Pt1000. Supports 2‑wire and 4‑wire RTD sensor connection modes. Input resolution is 14‑bit. Sampling time reaches 200 µs. Analog output range is ±10 V. Built‑in 4‑channel potentiometer power supply output. Galvanic isolation between field side and logic side reaches 500 V. Operating temperature range: ‑30°C to +60°C. External power supply voltage range: 18 V‑34 V DC. Supports single‑ended and differential input connection modes. Certifications include CE, UL, DNV, Lloyd’s Register for marine application.

Functional Features:

Supports wire‑break detection for voltage and temperature input channels. Analog output channels are short‑circuit proof. Potentiometer power supply circuit has overload detection function. Monitors external module supply voltage status. High‑speed sampling adapts to fast dynamic process control loops. Compact module structure saves cabinet installation space. Hot‑swap support under M1 system environment. Rich diagnostic information can be read by system software. Supports direct connection of RTD temperature sensors without external signal converterBachmann e….

Application Scenarios:

Wind turbine automation control, marine ship‑board control system, industrial process loop control, factory analog signal acquisition and actuator regulation, energy‑generation equipment monitoring, machinery analog quantity closed‑loop control, and automation projects requiring mixed voltage, current and temperature signal processing.

Performance Parameters:

Typical conversion accuracy maintains high precision within operating temperature range. Input impedance is 1 MΩ for voltage input and approximately 50 Ω for current input. Minimum output load impedance for analog output is 2 kΩ. Module realizes fast response for real‑time process adjustment. Diagnostic signals can trigger system alarm logic.

Material Composition:

Industrial‑grade ABS plastic module housing, FR‑4 printed circuit board, gold‑plated M1 backplane connector, removable screw terminal blocks, high‑precision analog‑to‑digital and digital‑to‑analog conversion chips, surge‑protection and EMC suppression components.

Structural Features:

Standard M1 series module form factor, backplane bus connection for M1 rack system. Front‑side screw terminal blocks for field‑signal wiring. Module can be directly inserted into M1 system rack slot. Indicator LEDs on module front panel show channel status and fault information. Compact overall dimension reduces cabinet space occupation.

Working Principle:

Field analog signals including voltage, current and RTD temperature signals access input channels via front‑side terminals. Analog‑to‑digital converter converts analog physical signals into digital data. Digital data transmits to M1 main CPU through backplane bus. Digital control instruction from main CPU converts into analog output signal via digital‑to‑analog converter, and outputs to field actuators. Internal diagnostic circuit continuously monitors input wire break, output short‑circuit and power‑supply overload conditions, and uploads fault status to system controller in real time.

Installation Requirements:

Insert module into designated slot of Bachmann M1 system rack. Ensure reliable contact between module and M1 backplane connector. Complete field‑signal wiring on front‑side screw terminals, distinguish input channels, output channels and sensor power terminals. Tighten terminal screws with proper torque. Confirm external power supply voltage falls within 18 V‑34 V DC range. Leave sufficient heat‑dissipation clearance around module inside control cabinet. Do not install adjacent to strong electromagnetic interference sources.

Usage Notes:

Distinguish 2‑wire and 4‑wire wiring mode for Pt100 / Pt1000 sensors. Do not exceed permitted signal range for each input channel. Short‑circuit on output channel will trigger internal protection, but long‑term short‑circuit should be avoided. Configure channel type parameters in M1 programming software after hardware installation. Read diagnostic status regularly during operation. Comply with marine‑grade installation specification when used on ship‑board environment. Operate within ‑30°C‑+60°C working temperature range.