Main Technical Parameters

• Number of channels: 16 digital inputs (each channel can connect to 6 mA safety isolated signals or 24 V mechanical contacts)
• Protection class: IP66, suitable for harsh industrial environments
• Operating temperature: -40 °C ~ +70 °C; humidity: 5% ~ 95% (non-condensing)
• Power supply: 5 V DC (120 mA) or 24 V DC (200 mA)
• Dimensions: Approximately 120 mm × 45 mm × 22 mm (width × height × depth), occupying 4 TE rack space
• Weight: Approximately 200 g
• Safety level: Complies with SIL 2 (IEC 61508) / SIL 3 (partial configurations)
• Communication interfaces: Supports multiple industrial networks such as PROFIBUS DP, PROFINET, and Ethernet

Product Features

1. Redundant safety design: Equipped with internal dual-channel redundancy to implement self-inspection and fault detection, ensuring high reliability.
2. Modular structure: Can be directly inserted into standard racks and supports hot swapping, facilitating on-site replacement and expansion.
3. Multi-protocol compatibility: Compatible with HIMA’s proprietary safety bus and mainstream industrial fieldbuses, enabling easy integration into existing systems.
4. Easy installation and maintenance: Adopts screw-fixed quick terminals; combined with the module’s self-inspection function, it minimizes on-site debugging and daily maintenance workload.
5. Strong environmental adaptability: With IP66 protection and a wide temperature range, it can operate for a long time in harsh environments such as chemical, petroleum, and metallurgical industries.

Structure and Composition

• Rack body: A metal housing that provides mechanical protection and heat dissipation.
• Input terminal block: Each input is equipped with a safety isolation circuit and screw terminals to prevent accidental contact.
• Power module: Integrates redundant power inputs internally, supporting dual-voltage power supply (5 V/24 V).
• Communication interface board: Provides corresponding interface cards based on the selected communication protocols (PROFIBUS, PROFINET, etc.).
• Diagnosis/self-inspection unit: Monitors the module status in real time, generates fault codes, and reports them via the bus.

Typical Application Fields

• Emergency Stop (E-Stop) systems
• Safety doors/light curtains
• Explosion-proof and fire-proof alarms
• Safety monitoring for boilers and pressure vessels
• Mechanical safety interlocks
• Safety control in process industries (petroleum, chemical, electric power)

Installation Key Points

1. Rack installation: Insert the module into a 19-inch rack that complies with the IEC 60204-1 standard, and ensure the fixing screws are properly secured.
2. Power wiring: Select 5 V or 24 V power supply according to on-site power conditions, check the power polarity, and use anti-miswiring terminals.
3. Input wiring: Use corresponding safety isolation terminals to connect sensor signals (6 mA or 24 V), and check the firmness of wiring for each input.
4. Communication configuration: Configure the corresponding bus address and parameters in the PLC or safety controller to complete network mapping.
5. Self-inspection and debugging: After power-on, perform self-inspection through HIMA safety software or on-site panels; put the module into operation only after confirming that all channels are in normal status.

Maintenance Recommendations

1. Regular inspection: Conduct visual inspections of terminal tightness and wiring integrity every 6 months.
2. Firmware upgrade: If there are safety function upgrades, use the firmware package officially provided by HIMA for updates.
3. Fault diagnosis: Use the module’s self-inspection function and bus alarm information to quickly locate faulty channels; replace individual input terminals or the entire unit if necessary.
4. Environmental monitoring: In high-temperature, high-humidity, or dusty environments, clean the housing regularly to ensure unobstructed heat dissipation channels.