HIMA H4135 HIMatrix Programmable Safety Systems

The HIMA H4135, also cataloged as the H4135 Safety Relay Module, operates as a dedicated hardware component for fail-safe logic processing within HIMatrix programmable safety systems.

Hardware Specifications

SIL3 Certification and Fail-Safe State Execution

The H4135 is cross-examined and validated under IEC 61508 protocols to maintain SIL3 certification constraints across high-integrity hardware paths. Internal architecture executes ongoing internal diagnostics with a cycle time of 10 ms or greater, ensuring that any internal hardware malfunction triggers immediate fail-safe state execution to isolate field-side loops. De-energize-to-trip mechanisms operate alongside triple modular redundancy (TMR) 2oo3 architecture options or 2oo2D internal structures to prevent latent diagnostic blind spots while enforcing electrical galvanic isolation across all logic-solving elements.

Frequently Asked Questions

Q: What action does the H4135 output circuit execute during an overcurrent event on a digital channel?

A: The 12 fail-safe digital outputs are short-circuit proof. When an overcurrent condition surpasses the 0.5 A channel threshold, internal safety switches isolate the line to enforce a fail-safe state.

Q: Is hot-swapping supported for the H4135 module on the DIN rail during active operations?

A: No. Modifying physical terminations or extracting the H4135 safety controller module while the 24 VDC power supply line is energized can induce diagnostic faults and interrupt the safety instrumented loop.

Q: What protocols are supported natively on the integrated Ethernet ports for safety interlocking?

A: The dual Ethernet ports support HIMA Safe Ethernet (HSE) for safe inter-module communications, alongside standard industrial protocols including Modbus TCP and PROFINET.

Field Installation Guidelines

• DIN-Rail Mounting Stability: Mount the unit horizontally on a standard 35 mm DIN rail inside an IP54 or higher rated industrial enclosure to secure the IP20 housing against ambient particulates.
• Galvanic Isolation and Shielding: Route all 4-20 mA analog input cables in dedicated, shielded twisted-pair runs. Ground the shields exclusively at the Marshalling cabinet earth bar to prevent ground loop noise from affecting the 12-bit resolution converters.
• Power Supply Requirements: Use a stabilized 24 VDC power source conforming to SELV or PELV standards, capable of sustaining operation through a +/-20% voltage variation.
• Wire Stripping and Torque Limits: Strip field wiring conductors according to terminal block specifications. Ensure all screw terminations are torqued properly to maintain low-resistance physical contact under low-frequency vibration profiles.