2AO300.6
Product Name
In the field of industrial automation and process control, the 2AO300.6 module is an industrial-grade analog output module. “2AO” clearly indicates its core function: “2 Analog Outputs,” meaning it provides two independent channels for analog signal output; “300” is likely the model series identifier, associating it with a product line featuring specific performance levels or design standards; “6” may represent a hardware revision, voltage class, or compatibility code, distinguishing it from other variants in the same series. Overall, it can be understood as “2-Channel Analog Output Module (Series 300, Variant 6),” emphasizing its role in converting digital control signals to analog outputs for industrial actuators.
Product Description
The 2AO300.6 module is a specialized analog output component widely used in industrial control systems, including process automation, manufacturing lines, and building management systems. Its primary function is to convert digital control signals from a central controller (such as a PLC or DCS) into precise analog output signals (typically 4-20mA current or 0-10V voltage), which are then used to control actuators like valves, dampers, variable speed drives, and positioners. This enables continuous and accurate regulation of industrial processes, such as flow, pressure, temperature, or motor speed.
In a chemical processing plant, for example, the module receives digital setpoints from the DCS for regulating the flow of a reactant. It converts these setpoints into 4-20mA current signals, where 4mA corresponds to 0% flow and 20mA corresponds to 100% flow, to control a motorized control valve. The high linearity and low drift of the module ensure that the valve opens or closes precisely according to the setpoint, maintaining the reactant flow within ±1% of the desired value—critical for ensuring product quality and process safety.
Designed for industrial environments, the 2AO300.6 module features robust galvanic isolation (≥2500V AC between channels and the controller) to resist electromagnetic interference (EMI) from nearby motors, transformers, or power lines. This isolation prevents ground loops and signal distortion, ensuring stable output even in noisy electrical environments. Its compact design allows for easy integration into standard DIN rail-mounted I/O racks, saving space in control cabinets.
The module also includes diagnostic functions to monitor output signal integrity, such as overcurrent detection (to protect against short circuits in field wiring) and drift monitoring (to alert when calibration is needed). These features reduce downtime by enabling proactive maintenance, making the 2AO300.6 a reliable choice for critical control loops in continuous production processes.
Product Parameters
- Output Signal Parameters
- Channels: 2 independent analog output channels, configurable for current or voltage signals.
- Current Output: 4-20mA, with a load capacity of 0-500Ω; resolution 16 bits, accuracy ±0.1% of full scale (at 25°C).
- Voltage Output: 0-10V, 0-5V, or ±10V (configurable), output impedance ≤100Ω; resolution 16 bits, accuracy ±0.1% of full scale (at 25°C).
- Linearity Error: ≤0.05% of full scale, ensuring minimal deviation from ideal output curves.
- Temperature Drift: ≤50ppm/°C (max) for both current and voltage outputs, maintaining accuracy across operating temperatures.
- Electrical Parameters
- Power Supply: 24V DC ±10%, typical current consumption 80mA (excluding load current).
- Isolation: 2500V AC galvanic isolation between channels, between channels and power supply, and between channels and controller interface.
- Overcurrent Protection: Each channel includes overcurrent limiting (≥30mA for current output), with automatic recovery after fault removal.
- Environmental Parameters
- Operating Temperature: -25°C to +70°C, suitable for harsh industrial environments.
- Storage Temperature: -40°C to +85°C.
- Relative Humidity: 5% to 95% RH (non-condensing), with no impact on performance.
- Vibration Resistance: 10-500Hz, 10g acceleration (per IEC 60068-2-6); shock resistance: 30g, 11ms duration (per IEC 60068-2-27).
- Response Parameters
- Settling Time: ≤10ms (to within 0.1% of final value) for step changes in output signal.
- Update Rate: Configurable up to 1kHz, allowing rapid adjustment to control setpoint changes.
Product Specifications
- Physical Specifications
- Dimensions: 100mm (length) × 60mm (width) × 30mm (height), designed for DIN rail mounting.
- Weight: Approximately 150g, lightweight for easy installation in dense I/O racks.
- Housing Material: Polycarbonate with flame-retardant rating UL94 V-0, providing mechanical protection and EMI shielding.
- Mounting: Compatible with 35mm standard DIN rails (EN 50022), with a snap-on design for tool-free installation.
- Interface Specifications
- Controller Interface: 16-pin spring-loaded connector or screw terminal block for communication with the host controller (supports PROFINET, Modbus, or proprietary fieldbus protocols).
