Description
Product Description
HIMA X-DO1202 is a high-performance digital output module designed for HIMA’s X-Series safety instrumented system (SIS), engineered to deliver reliable, fail-safe control signal output for small to medium-scale safety-critical applications such as skid-mounted process equipment, packaging lines, and auxiliary plant systems. HIMA X-DO1202 integrates 12 isolated digital output channels with electromechanical relay switching, enabling precise control of field actuators (e.g., valves, pumps, alarms) to execute safety interlock logic. HIMA X-DO1202 is certified to IEC 61508 SIL 3, ensuring compliance with the strictest safety standards, and features built-in diagnostic capabilities to monitor relay health and channel status. Additionally, HIMA X-DO1202 supports hot-swappable installation and seamless integration with HIMA X-CPU01 controllers, minimizing maintenance downtime and simplifying system expansion. As a key I/O component of HIMA’s X-Series, HIMA X-DO1202 combines compact design with robust performance to protect personnel and equipment in decentralized safety applications.
Product Parameters
- Brand/Model: HIMA X-DO1202
- Core Output Parameters
- Number of Channels: 12 isolated digital output channels (2 channels per isolation group)
- Output Type: Form A (SPST) electromechanical relays
- Rated Voltage: 24V DC / 230V AC (configurable per channel group)
- Rated Current: 2A per channel (resistive load), 1A per channel (inductive load)
- Switching Time: ≤10ms (make), ≤5ms (break)
- Isolation: Channel-to-group isolation (1500V AC), module-to-backplane isolation (2500V AC)
- System & Diagnostic Parameters
- Compatible Systems: HIMA X-CPU01, HIMA X-Series SIS
- Diagnostic Functions: Relay contact status monitoring, overcurrent detection, power supply fault alerts
- Communication Protocol: SafetyBUS p (integrated with X-CPU01)
- Configuration Software: HIMA SILworX V4.0+
- Environmental & Physical Parameters
- Operating Temperature: -20°C ~ +60°C (extended range: -40°C ~ +70°C optional)
- Storage Temperature: -40°C ~ +85°C
- Vibration Resistance: 10g (10-2000Hz, IEC 60068-2-6 standard)
- Shock Resistance: 30g (11ms half-sine wave)
- Power Supply: 24V DC (18-32V) via X-CPU01 backplane, power consumption ≤ 8W
- Protection Grade: IP20 (cabinet installation)
- Installation Method: DIN 35mm rail mounting (stackable with X-Series modules)
- Dimensions: 80mm × 70mm × 30mm (compact stackable form factor)
Advantages & Features
- Compact High-Density Design: HIMA X-DO1202 packs 12 digital output channels into a stackable DIN-rail module, saving valuable cabinet space in decentralized safety systems (e.g., skid-mounted equipment) while reducing wiring complexity.
- SIL 3-Certified Fail-Safe Operation: The electromechanical relay design of HIMA X-DO1202 provides inherent fail-safe performance (contacts open on power loss), critical for safety interlock applications such as emergency shutdown valves or pump trip circuits.
- Dual Voltage Compatibility: Supporting both 24V DC and 230V AC output, HIMA X-DO1202 eliminates the need for multiple output modules, enabling control of mixed-voltage actuators and simplifying system design.
- Integrated Diagnostics & Hot-Swap Support: HIMA X-DO1202 monitors relay wear and overcurrent conditions in real time, with hot-swappable installation allowing module replacement without shutting down the X-Series SIS—minimizing downtime for maintenance.
Application Fields & Cases
- Pharmaceutical Skid Safety Control: A pharmaceutical manufacturer deployed HIMA X-DO1202 modules with X-CPU01 controllers to control emergency shutdown valves and alarm systems on a sterile processing skid. The module’s compact design fit into the skid’s control cabinet, while SIL 3 certification ensured compliance with FDA safety regulations.
- Food Processing Packaging Line Safety: A food and beverage plant integrated HIMA X-DO1202 into its packaging line safety system, controlling guard door locks, conveyor stop mechanisms, and reject stations. The dual voltage compatibility supported both 24V DC sensors and 230V AC motors, reducing the number of modules required.
- Water Treatment Chemical Dosing System: A municipal water treatment plant used HIMA X-DO1202 to control chemical dosing pumps and isolation valves, with built-in diagnostics alerting operators to a stuck valve relay before it caused an over-dosing incident.
Competitor Comparison
| Comparison Dimension | HIMA X-DO1202 | Competitor 1 (Siemens SM 322 DO) | Competitor 2 (Allen-Bradley 1734-OB8) |
|---|---|---|---|
| Number of Channels | 12 | 8 | 8 |
| SIL Certification | SIL 3 | SIL 2 | SIL 2 |
| Voltage Compatibility | 24V DC/230V AC | 24V DC only | 24V DC only |
| Form Factor | Stackable DIN-rail (80×70×30mm) | DIN-rail (120×80×35mm) | DIN-rail (90×60×25mm) |
| Compatibility | HIMA X-Series SIS | Siemens S7-1200F | Allen-Bradley CompactLogix |
| Core Advantages | SIL 3, dual voltage, compact stackable design | Siemens ecosystem integration | Rockwell ecosystem integration |
Selection Suggestions & Precautions
- Selection Suggestions: HIMA X-DO1202 is ideal for HIMA X-Series users requiring compact, SIL 3-certified digital outputs for decentralized safety systems (e.g., skids, small production lines). For Siemens S7-1200F users, SM 322 DO is preferred for native integration; Allen-Bradley 1734-OB8 suits CompactLogix systems.
- Precautions:
- Match relay output voltage/current ratings to connected actuators (e.g., 230V AC for pumps, 24V DC for valves) to avoid relay damage or actuator malfunction.
- Use shielded cables for output wiring to minimize EMI interference in industrial environments with high electrical noise.
- Regularly inspect relay contact status via SILworX diagnostics (quarterly) to replace worn relays before failure, especially in high-cycle applications.
- Ensure the module is properly grounded to HIMA X-Series specifications to maintain isolation integrity and safety certification.
- Avoid exceeding inductive load ratings (1A per channel) to prevent relay contact arcing and premature failure.
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