900B01-0101 | Honeywell HC900 Controller Analog Output Module

Product Overview

The Honeywell 900B01-0101 is an Analog Output Module providing 4 isolated analog output channels for the Honeywell ControlEdge HC900 system. It delivers precise 0-20 mA or 4-20 mA current signals to control final control elements such as I/P converters, valve positioners, and variable speed drives. With 12-bit D/A resolution, ±0.1% accuracy, and galvanic isolation, this module ensures accurate, reliable control output for process automation applications.

Key Features

• 4 Isolated Analog Outputs: Independent channel control
• 0-20 mA / 4-20 mA Output: Standard industrial current signals
• 12-Bit D/A Resolution: Precise output control
• ±0.1% Full-Scale Accuracy: Factory-calibrated precision
• 750 Ω Max Load: Drives standard process control devices
• Galvanic Isolation: 500 VDC channel-to-channel, 600 VDC from logic
• Output Verification: Internal feedback confirms actual output current

Technical Specifications

• Model: 900B01-0101
• Type: Analog Output Module
• Series: ControlEdge HC900
• Channels: 4 (isolated)
• Output Range: 0-20 mA, 4-20 mA (selectable)
• Load Resistance: 750 Ω max
• D/A Resolution: 12-bit
• Accuracy: ±0.1% full scale (reference conditions)
• Isolation: 500 VDC channel-to-channel; 600 VDC from logic
• Minimum Current Sensing: > 3.5 mA per output
• Update Rate: 500 ms
• Power Consumption: 5V: 40 mA max; 24V: 200 mA max
• Heat Dissipation: ~6.8W
• Dimensions: 137 mm H × 35.6 mm W (5.4" H × 1.4" W)
• Weight: ~408 g
• Mounting: Chassis slot mount
• Operating Temperature: 0°C to +60°C
• Approvals: CE, UL, CSA

Installation Guide

1. Chassis Insertion: Install in HC900 I/O rack
2. Terminal Block: Use 900TEK/900TBK terminal blocks
3. Device Wiring: Connect I/P converters, valve positioners, or VFDs:
   • Loop-powered: Connect module output + and - to device
   • Ensure total loop resistance ≤ 750 Ω
4. Shield Grounding: Ground shields at single point
5. Configuration: Set output range (0-20 mA or 4-20 mA) per channel in software

FAQ

Q: What is the difference between 900B01-0101 and 900B01-0301?
A> 900B01-0301 is a later revision. Both are 4-channel analog output modules with identical specifications.

Q: Can this module output voltage signals?
A> No. The 900B01 series outputs current only (0-20 mA, 4-20 mA). For voltage outputs, verify if 900U01-0100 Universal I/O Module meets requirements.

Q: What happens if the load resistance exceeds 750 Ω?
A> Output current will drop below commanded value. The module may report a fault. Ensure loop resistance including wiring and device is within specification.

Selection Tips

• Use 900B01-0101 for standard 4-20 mA control applications
• For 8-channel output, use 900B08-0202; for 16-channel, use 900B16-0202
• Verify loop resistance of all field devices before installation
• Consider 900U01-0100 for mixed AI/AO/DI/DO requirements