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HIMA X-DO1201 985210204 Digital Output Module
HIMA X-DO1201 985210204
Overview
The HIMA X-DO1201 (Product Number: 985210204) is a digital output module under HIMA, and it belongs to the I/O components of the HIMAX series. Specifically designed for Safety-instrumented Systems (SIS), this module features high reliability and redundant fault tolerance. It can maintain normal system operation even in the event of a single-point fault, making it a critical component essential for achieving Functional Safety.
Main Specifications
- Model/Number: X-DO1201 / 985210204
- Type: Digital Output (DO) Module
- Number of Channels: 12 channels (each channel can be controlled independently)
- Output Voltage: 24 V DC (commonly used industrial safety power supply)
- Output Current: ≤ 0.5 A (per channel)
- Response Time: ≤ 1 ms (typical value)
- Operating Temperature Range: -25 °C ~ +70 °C
- Protection Class: IP20 (for indoor installation)
- Communication Interface: HIMAX Bus (works with bus modules such as X-SB01 and X-CPU)
- Redundancy Mode: Dual redundancy (2 out + 2 out) to achieve 1oo2/2oo3 Safety Integrity Level (SIL)
Product Features
- High Safety Integrity: Complies with IEC 61508/61511 standards and supports SIL 2 ~ SIL 3 levels.
- Dual Redundant Fault Tolerance: Adopts an internal 1oo2/2oo3 structure, ensuring that a single-point fault does not affect output.
- Modular Design: Compatible with other I/O, bus, and CPU modules of the HIMAX series, facilitating system expansion.
- Fast Response: Short digital output switching time, suitable for safety-critical scenarios such as emergency shutdowns and valve control.
- Reliable Electrical Characteristics: Powered by 24 V DC low voltage, with strong anti-interference capability, making it suitable for harsh industrial environments.
- Easy Maintenance: Features a modular plug-and-play structure, enabling quick on-site replacement without system shutdown.
Structure and Composition
- Housing: Made of metal or high-strength plastic to provide mechanical protection.
- Terminal Block: 12 independent output terminals, fixed by screws or spring clips.
- Internal Circuitry: Includes power driver chips, isolators, redundant logic units, and self-test circuits.
- Bus Interface: HIMAX bus connector, used for communication with system bus modules (e.g., X-SB01).
- Indicator Lights: Status indicators show the module’s power supply, fault, and output status.
Typical Application Fields
- Petroleum and Chemical Industry: Safety valves, emergency shutdown circuits.
- Power System: Safety protection for generator sets and substations.
- Metallurgy and Steel Industry: Safety control for high-temperature furnaces and continuous casting machines.
- Papermaking and Textile Industry: Safety interlocking for key machinery.
- Water Treatment and Environmental Protection: Safety monitoring for pump stations and valves.
- Other Industrial Automation: Any process control system that requires the implementation of Functional Safety.
Installation and Maintenance Points
Installation Precautions
- Pre-installation Check: Confirm that the power supply voltage is 24 V DC, and check that the terminal block has no looseness or short circuit.
- Mechanical Fixing: Use standard DIN rails or cabinet bolts for fixation to ensure vibration resistance.
- Wiring Specifications: Select output terminals that match the load current specifications to avoid overloading.
- Bus Connection: Use dedicated HIMAX bus connectors to ensure secure plugging and prevent communication errors.
- On-site Commissioning: Perform self-tests, function tests, and parameter configuration using HIMA’s supporting engineering software.
Maintenance Guidelines
- Regular Maintenance: Conduct a visual inspection and electrical insulation test every 12 months; replace terminals promptly if oxidation or looseness is found.
- Fault Diagnosis: The module is equipped with built-in fault indicator lights. Combined with system diagnostic software, fault points can be quickly located. If necessary, the entire module can be replaced to restore operation.
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