Description
erghof QAIO164-V Analog I/O Module
Technical Specifications Model: QAIO164-V Mounting Method: DIN rail mounting inside control cabinet Input Channels: Multiple analog input channels Output Channels: Analog output channels Signal Type: Voltage and current signal configurable per channel Resolution: High precision analog to digital and digital to analog conversion resolution Communication Interface: Internal system field bus Protection Grade: IP20 module body Operating Temperature: -20 ℃ ~ +60 ℃ Storage Temperature: -40 ℃ ~ +85 ℃ Relative Humidity: 5% ~ 95% non-condensing Terminal Type: Screw type wiring terminals
Functional Features Multi-channel analog input acquires voltage or current signal from process sensors and transmitters. Analog output channels generate standard analog control signal for proportional valves and regulators. Per-channel wire break detection identifies open circuit fault of field sensor wiring. Overvoltage and overcurrent protection for every input and output channel. Onboard signal filtering suppresses industrial electromagnetic noise interference. Module self-diagnosis continuously monitors power supply and hardware state. LED indicators display channel signal status, module running state and fault alarm. Supports parameter configuration via Berghof programming software.
Application Scenarios Chemical process control system, water treatment plant automation, heating and ventilation control, packaging machine analog actuator control, building energy management system, metallurgy auxiliary process monitoring.
Performance Parameters Analog input maintains specified conversion accuracy within full configured signal range. Wire break detection circuit reliably identifies open circuit of sensor cable. Output channel drives rated load and keeps stable analog output value. Built-in filter reduces power frequency noise from industrial environment. Self-diagnosis circuit detects hardware abnormality and activates fault indicator immediately. Module runs continuously for long periods under cabinet temperature fluctuation.
Material Composition Module Housing: Black flame-retardant PA plastic housing. Main PCB: FR4 printed circuit board with conformal protective coating. Core Electronic Components: ADC chip, DAC chip, signal isolation circuit, transient suppression diode, bus communication chip, power monitoring IC. Terminal Parts: Copper alloy screw wiring terminals. Fasteners: Metal DIN rail spring clamping clip. Indicator Components: LED status indicators on front panel.
Structural Features Compact rectangular plastic housing designed for NS35 standard DIN rail installation. Front panel equipped with screw terminals for field signal wiring and LED status indicators. Metal spring clip fixed on module back for locking onto DIN rail. Internal layout separates analog signal circuit and digital bus communication circuit. Isolation barrier between adjacent terminals prevents short circuit fault. Housing structure prevents direct contact with live terminals.
Working Principle 24V DC control power supplies QAIO164-V module internal circuit. Field analog voltage or current signal enters module through front screw terminals. Input signal passes through signal conditioning and filter circuit, then converted to digital value by ADC chip. Digital data is transmitted to Berghof main controller through internal system bus. When controller sends analog output command, DAC chip converts digital control value to analog voltage or current signal, and output signal drives field proportional actuator. Wire break detection circuit monitors input channel loop current continuously to judge sensor cable open circuit. Module self-diagnosis circuit checks power supply, conversion chip and bus communication state all the time, and lights fault LED once abnormality is detected.
Installation Requirements Mount module on standard NS35 DIN rail inside closed control cabinet, lock back metal clip tightly. Connect field sensors and actuators to screw terminals according to wiring diagram. Connect 24V DC control power to module power terminals. Complete module parameter configuration in Berghof programming software. Power on control cabinet after wiring completion. Test analog signal acquisition and analog output function. Keep module away from high frequency inverter power cables to reduce electromagnetic interference.
Usage Precautions Module protection grade is IP20, install only inside closed control cabinet. Use shielded twisted pair cable for analog signal wiring, single-point shield grounding. Do not exceed rated input voltage and current of each channel. Check terminal screw tightness regularly during maintenance. Do not modify internal circuit of module, modification invalidates product warranty. Test all analog channels after wiring modification before machine startup. Replace module when persistent channel fault alarm occurs.
