HIMA X-DO1201 985210204 | HIMax 12-Channel Safety Relay Output Module
12-channel 24 V DC safety relay output module with SIL 3 certification, designed for HIMax safety controllers to drive field actuators in critical industrial SIS applications
1. Product Overview
The HIMA X-DO1201 985210204 is a 12-channel safety relay output module for HIMax safety controllers, engineered to reliably drive 24 V DC actuators (e.g., solenoid valves, contactors, alarm indicators) in safety-instrumented systems (SIS) with SIL 3 integrity. It features channel-to-channel isolation (500 V AC), comprehensive diagnostics (short-circuit, overload, open-circuit detection), and a response time ≤ 1 ms, supporting redundant configurations (1oo2/2oo3) for fault-tolerant operation. The module integrates with HIMax backplane, operates in -25°C to +60°C, with IP20 protection, and is ideal for SIS/DCS in oil & gas, chemical, power generation, and manufacturing requiring failsafe digital output control and SIL 3 compliance.

Key Specifications
• Model: X-DO1201 985210204 | HIMax 12-Channel Safety Relay Output Module
• Channel Count: 12 isolated relay output channels (4 groups of 3 channels)
• Output Type: 24 V DC (19-30 V DC range); ≤ 0.5 A/channel (continuous); IEC 61131-2 Type 1
• Isolation: 500 V AC (channel-group to channel-group); 500 V AC (channels to backplane)
• Response Time: ≤ 1 ms (typical); configurable for safety-critical applications
• Diagnostics: Short-circuit, overload, open-circuit detection; channel-level status LEDs
• Redundancy: Supports 1oo2/2oo3 redundant configurations for SIL 3 compliance
• Communication: HIMax backplane (seamless integration with HIMax controllers)
• Environmental: -25°C to +60°C (-13°F to +140°F); Storage: -40°C to +85°C (-40°F to +185°F); Humidity: 5% to 95% (Non-condensing)
• Protection: IP20 (front panel); DIN-rail mountable (HIMax chassis)
• Certification: IEC 61508 SIL 3, IEC 61511, TÜV SÜD approved
2. Core Features
• SIL 3 Compliance: Certified for IEC 61508 SIL 3 safety integrity, suitable for critical safety loops
• Channel Isolation: 500 V AC isolation between groups and backplane to prevent cross-channel interference
• Comprehensive Diagnostics: Real-time short-circuit/overload detection with LED indicators for fast fault localization
• Fast Response: ≤ 1 ms typical response time for time-critical safety applications
• Grouped Channels: 4 groups of 3 channels for flexible wiring and power distribution
• Redundant Configurations: Supports 1oo2/2oo3 redundancy for fault-tolerant operation in SIL 3 systems
• Hot-Swappable: Tool-free replacement without system shutdown (with HIMax redundant backplane)
• Status Monitoring: Module-level (Power, Fault, Communication) and channel-level LEDs for instant status check

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3. Typical Applications
• Oil & Gas: Pipeline ESD systems, wellhead safety shutdown, offshore platform emergency valves
• Chemical: Reactor safety interlocks, toxic gas isolation valves, batch process emergency stops
• Power Generation: Turbine protection systems, generator safety shutdown, auxiliary system control
• Manufacturing: Automotive assembly safety stops, packaging machine emergency actuators, robot cell interlocks
• Water/Wastewater: Pump station SIS, valve position control, overflow alarm actuation

4. Installation & Maintenance
Installation: Insert into HIMax I/O slot; connect 24 V DC group power; wire field actuators (4 groups); verify LED status (Power, Fault, Channel OK).
Configuration: Use SILworX to set output type, response time, diagnostic thresholds, and redundant mode (1oo2/2oo3).
Maintenance: Weekly: Check status LEDs; Monthly: Test short-circuit/overload diagnostics; Annual: Verify isolation integrity; replace if fault persists.
Safety Notes: De-energize before hot-swap; ensure group power redundancy; validate SIL 3 compliance after configuration changes.
Technical Document | HIMA X-DO1201 985210204 | HIMax 12-Channel Safety Relay Output Module for SIL 3 Applications