Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 900H03-0102 |
| Manufacturer | Honeywell |
| Product Type | Digital Output Module (DO) |
| Compatible System | ControlEdge HC900 Hybrid Controller |
| Output Channels | 8 (AC version) / 16 (DC version, per some sources) |
| Output Type | Triac / Solid-State Relay (AC) or Sourcing Solid-State (DC) |
| Output Voltage Range | 85–240 VAC (AC version) / 10–30 VDC (DC version) |
| Output Frequency | 50 / 60 Hz (AC version) |
| Max Current per Channel | 2 A (AC version, 250 VAC) / 0.5 A (DC version) |
| Isolation | Channel-group isolation; galvanic isolation from backplane |
| Backplane Power | 5 VDC @ ~218 mA |
| Response Time | ≤ 2 ms (DC version) |
| Operating Temperature | 0°C to +60°C (AC version) / -20°C to +60°C (DC version) |
| Storage Temperature | -40°C to +85°C |
| Dimensions | Approx. 133 × 32 × 141 mm (or 137 × 35.6 × 137.16 mm) |
| Weight | Approx. 0.24 kg |
| Mounting | HC900 I/O rack backplane |
Main Features and Advantages
Solid-state switching for high-cycle applications: The 900H03-0102 employs Triac or solid-state relay output elements rather than electromechanical relays, eliminating mechanical wear and contact bounce. This design supports high-frequency switching cycles without degradation, extending operational life in applications where outputs toggle frequently, such as pulse-width modulated control or rapid valve actuation sequences.
Robust isolation architecture: The 900H03-0102 provides channel-group isolation and galvanic separation between field circuits and the HC900 backplane. This prevents high-voltage transients from AC field wiring—common when switching inductive loads such as solenoids and contactor coils—from reaching the controller’s low-voltage logic circuits. On-board RC snubber networks further suppress inductive spikes during de-energization.
Fail-safe output behavior: When backplane communication is lost, the 900H03-0102 output channels transition to a user-configured safe state—either Failsafe OFF or Hold Last State—as defined in the HC900 Hybrid Control Designer software. This configurability ensures that critical safety-related outputs default to the appropriate state during controller faults or communication interruptions.
Hot-swap capability: The 900H03-0102 supports Removal and Insertion Under Power (RIUP) in HC900 racks, enabling module replacement without system shutdown. Field terminal blocks must be safely disconnected or de-energized before extraction to maintain safety and prevent output disruption.
Per-channel diagnostics: Each output channel includes a dedicated LED indicator for real-time status verification. Integrated diagnostic circuitry monitors output states, allowing detection of blown fuses or field supply loss without interrupting backplane communications.
