900H02-0001 | Honeywell DO 16 Channel 24vdc Pwa HC900 Controller

Product Overview

The Honeywell 900H02-0001 is a 16-Channel DC Digital Output Module (sinking type) for the Honeywell ControlEdge HC900 hybrid controller platform. It provides low-side switching (current sinking) outputs organized into two galvanically isolated groups of 8 channels each, enabling precise control of field devices such as solenoid valves, motor contactors, pilot lights, and alarm indicators in industrial automation and process control systems.

Key Specifications

• Model Number: 900H02-0001
• Series: Honeywell ControlEdge HC900
• Product Type: 16-Channel Digital Output Module — DC Sinking Type
• Output Channels: 16 outputs (2 groups of 8 channels)
• Output Type: Intelligent Power Switch (IPS), low-side switching (current sinking)
• Operating Voltage: 6.5 – 32 VDC (5.0 – 6.5 VDC @ < 0.5 A per channel)
• Peak Voltage: 34 VDC
• Maximum Load Current: 1 A per point, 8 A max per module (resistive load)
• Lamp Load: 0.5 A per point (incandescent, 5 mH max)
• ON Voltage Drop: 0.3 VDC @ 1 A load
• Maximum Leakage Current: ≤ 0.15 mA @ 32 VDC
• Maximum Inrush Current: 4 A for 10 ms
• Response Time: 6 ms (OFF to ON) / 6 ms (ON to OFF)
• Galvanic Isolation: 2 groups of 8 outputs, isolated from chassis and between groups
• Overload Protection: Electronic high current and high temperature limiting; resets after cycling field power
• Power Supply Loading: 5V: 340 mA; 24V: 0 mA (externally powered)
• Dimensions (H × W × D): 137 × 35.6 × 137.16 mm (5.4" × 1.4" × 5.4")
• Weight: 0.35 lbs (159g)
• Operating Temperature: 0°C to +60°C (32°F to 140°F)
• Humidity: 5% to 95% non-condensing
• Certifications: CE; Class I, Div. 2, Groups A–D, T4; Class I, Zone 2
• Status: Discontinued by Manufacturer — replaced by 900H02-0202 series

Core Features

• 16-channel high-density digital output in compact single-slot form factor
• Low-side switching (sinking) design for flexible field device integration
• Two isolated groups of 8 channels — each group has independent +V and COM screw terminals
• Intelligent Power Switch (IPS) technology with built-in overload and thermal protection
• Individual green LED for each channel indicating ON/OFF state
• Status LEDs: Green blinking = module scanning; Amber blinking = channels forced; Red = module diagnostics
• Hot-swappable — module can be removed/inserted under controller power for maintenance
• Electronic overload protection — auto-recovery after field power cycle
• Galvanic isolation simplifies installation and eliminates need for external isolation hardware

Applications

• Solenoid valve control in process loops
• Motor starter and contactor triggering
• Pilot light and indicator lamp control
• Alarm siren and beacon activation
• Relay logic interfacing with legacy control systems
• Material handling and conveyor control
• Water treatment and wastewater systems
• Burner management and combustion control

FAQ

Q: What is the difference between 900H02-0001 and 900H02-0202?
A: The 900H02-0001 is the early production revision of the 16-channel DC digital output module. Honeywell has since transitioned to the 900H02-0202 and later suffix variants (e.g., 900H02-0302). Functionally, all variants provide identical 16-channel DC sinking output capability. The 900H02-0001 is discontinued but remains fully compatible with HC900 systems.

Q: How do I reset an overloaded channel?
A: The 900H02-0001 features electronic overload protection with automatic current and temperature limiting. To reset a tripped overload, cycle the external field power (turn OFF, then ON). The module does not require fuse replacement.

Q: Can I mix different voltages in the two output groups?
A: Yes. The two groups of 8 channels are galvanically isolated from each other, allowing each group to operate at different field supply voltages (within the 6.5–32 VDC range).

Q: What does the red LED indicate?
A: A red status LED indicates a module diagnostic failure or internal hardware fault. Refer to the HC900 Designer software for detailed diagnostic information.

Q: Is this module hot-swappable?
A: Yes. The ControlEdge HC900 platform supports removal and insertion of I/O modules under power (RIUP). However, field power to the specific module should be disconnected before removal to prevent arcing.

Q: What is the maximum total current for the module?
A: The maximum total current is 8 A per module (sum of all 16 channels). Individual channels are rated for 1 A each (resistive load) or 0.5 A (incandescent lamp load).

Installation Guide

1. Power down field power to the module before installation (controller power may remain ON for RIUP).
2. Insert the 900H02-0001 into any available I/O slot in the HC900 rack.
3. Connect external field power (+V and COM) to the screw terminals for each group of 8 channels.
4. Wire field devices (solenoids, relays, lamps) to the appropriate output channels.
5. Verify all connections and apply field power.
6. Check LED indicators — green blinking status LED confirms module scanning.
7. Configure output channels via Honeywell HC Designer software.

Selection Tips

• Verify load type: Ensure your field devices require sinking (low-side) switching. For sourcing applications, consider the 900H32 series (32-channel DC sourcing output module).
• Calculate total current: Do not exceed 8 A total per module. For higher current requirements, distribute loads across multiple modules.
• Check voltage range: Confirm field power stays within 6.5 – 32 VDC. For AC output applications, consider 900H03 (120/240 VAC) or 900H01 (relay output) modules.
• For new designs: Consider ordering 900H02-0202 or later revision for manufacturer warranty and support coverage.
• Terminal blocks: Use compatible terminal blocks — 900TEK-0200 (Euro style, 20-position) or 900TBK-0200 (Barrier style, 20-position). For high-density applications, 900TCK-0200 (36-terminal Euro style) may be required.
• Environmental: Use an appropriate enclosure if deploying in dusty, wet, or corrosive environments. Operating temperature is 0°C to +60°C.

Compatible Products

• Controllers: HC900 C30 (900C32), C50 (900C52), C70/C75 (900C72/900C75)
• Racks: 900R04, 900R08, 900R12 (with redundant power options: 900R08R, 900R12R)
• Power Supplies: 900P01 (120/240 VAC), 900P24 (24 VDC)
• Terminal Blocks: 900TEK-0200 (Euro), 900TBK-0200 (Barrier), 900TCK-0200 (High-Density Euro)
• Replacement Module: 900H02-0202 (current production version)