Overview
The Honeywell 900B01-0301 is a precision 4-channel analog output module for the ControlEdge HC900 system. Designed for industrial process control, it delivers isolated current outputs for actuators, valves, and other field devices with high accuracy and reliability.
Key Technical Features
- Output Channels: 4 isolated analog channels
- Output Current Range: 0–20 mA standard, configurable up to 21.8 mA
- Maximum Load Resistance: 750 Ω
- Galvanic Isolation: 500 VDC between channels; 600 VDC between logic and outputs
- Accuracy: ±0.1% of full scale under reference conditions
- Digital-to-Analog Resolution: 12-bit
- Minimum Current Detection: >3.5 mA per channel
- Calibration: Factory calibrated with redundant data, individual channel field calibration supported, stored in non-volatile memory
- Diagnostics: Monitors calibration, configuration, and +24 VDC power supply; includes output verification feedback to controller
- Power Supply Requirements: 5 VDC ≤ 40 mA, 24 VDC ≤ 200 mA
- Rack Capacity: Up to 10 modules per rack, extendable to 12 with ambient temperature de-rating
- Operating Temperature Range: -40°C to +70°C
- Communication Protocol: MODBUS TCP/IP
- Weight: 0.408 kg
Applications
The Honeywell 900B01-0301 module is widely used in process industries for precise actuator and valve control. Typical scenarios include:
- Valve positioning in chemical or oil & gas plants
- Motor and pump regulation
- Actuator control in power generation and manufacturing processes
FAQ
Q: Can this module operate in extreme temperatures?
A: Yes, it supports -40°C to +70°C for harsh industrial environments.
Q: How many modules can be installed per rack?
A: Standard installation allows up to 10 modules per rack; up to 12 is possible with ambient temperature de-rating.
Q: Is the output isolated?
A: Each channel is galvanically isolated, ensuring safe operation and reducing electrical noise.
Comparison to Similar Models
Compared to earlier Honeywell HC900 analog output modules, the 900B01-0301 offers higher channel isolation, enhanced diagnostics, and improved calibration memory handling.
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