The Honeywell 900H02-0102 is a high-performance, sinking-type discrete output module designed for the ControlEdge HC900 process controller system. It features 16 isolated digital channels configured to control low-voltage field actuators, including pilot lamps, interposing relays, and solenoid valves. Engineered for rugged industrial deployment, this card utilizes low-side switching technology and contains integrated protective networks to ensure long-term, fail-safe signal delivery under dynamic load shifts.
Features
Low-Side Sinking Architecture: Utilizes current-sinking switching logic, drawing loop current down to common return ground when outputs activate.
Two-Group Galvanic Isolation: Segregates the 16 output channels into two distinct electrical blocks of 8 channels each, eliminating inter-group ground loops.
Electronic Overload Protection: Integrates electronic high-current and high-temperature limiting circuits that automatically reset when field power is cycled.
Comprehensive Diagnostic LEDs: Includes clear front-panel indicators displaying green for channel state, blinking green for active backplane scanning, and solid red for module diagnostics.
Hot-Swappable Insertion: Supports active extraction and insertion into live controller racks under power, ensuring uninterrupted process operation.
Specifications
Module Type: High-Density Digital Output Module (DO)
Number of Channels: 16 channels (split into two isolated groups of 8)
Nominal Output Voltage: 24 VDC (maximum working voltage up to 32 VDC)
Output Configuration: Sinking type (Low-side switching)
Maximum Load Current: 1.0 A per channel for resistive loads, or 0.5 A per channel for lamp loads (8.0 A maximum per module)
Maximum Leakage Current: 0.15 mA at 32 VDC when in the OFF state
Maximum Inrush Current: 4.0 A sustained for up to 10 milliseconds
ON-State Voltage Drop: Maximum 0.3 VDC across the switching array at full 1 A load
Module Response Time: 6 milliseconds nominal for both OFF-to-ON and ON-to-OFF transitions
Backplane Power Consumption: Draws maximum 340 mA at 5 VDC nominal (0 mA drawn from the 24 VDC rack power)
Operating Temperature: 0 deg C to +60 deg C (32 deg F to 140 deg F)
