HIMA H41q-HS High-Speed Safety Controller (B4237-1 / 997104237)

The HIMA H41q-HS (type B4237-1, order number 997104237) is a specialized high-speed safety controller from the HIMatrix family, engineered for machinery safety applications requiring extremely fast response times. With a cycle time as low as 1 ms, it can react to events such as emergency stop activation, light curtain interruption, or two-hand control release in milliseconds, ensuring the highest level of operator protection. Despite its speed focus, it retains full SIL 3 certification (IEC 61508) and PL e (ISO 13849-1), making it suitable for both process and machine safety. The H41q-HS integrates fail-safe digital and analog I/O, communication interfaces, and a high-speed backplane for local expansion.

Key Features

• Ultra-Fast Cycle Time: Configurable down to 1 ms, enabling rapid machine stop and real-time safety responses.

• Integrated Fail-Safe I/O: Typically 16 digital inputs, 12 digital outputs, and 2 analog inputs, all SIL3-capable.

• High-Speed Backplane: Allows connection of local I/O expansion modules with deterministic, low-latency communication.

• Flexible Communication: Dual Ethernet ports for safe Ethernet (PROFINET/PROFIsafe, EtherCAT) and standard protocols (Modbus TCP).

• Compact Form Factor: DIN-rail mountable, ideal for control cabinets with limited space.

• Certified Safety Functions: Pre-certified software blocks for emergency stop, safety gates, light curtains, and two-hand controls.

Technical Specifications

• Power Supply: 24 VDC ±20%

• Digital Inputs: 16 (fail-safe, 24 VDC, type 3)

• Digital Outputs: 12 (fail-safe, 24 VDC, 0.5 A, short-circuit proof)

• Analog Inputs: 2 (4–20 mA or 0–10 V, 12-bit, fail-safe)

• Cycle Time: 1 ms to 10 ms (configurable)

• Communication: 2× Ethernet (10/100), 1× RS-485 (Modbus RTU), high-speed backplane connector

• Safety Integrity: SIL 3 (IEC 61508), PL e (ISO 13849-1), Category 4 (EN 954-1)

• Operating Temperature: 0°C to +55°C

• Certifications: TÜV, CE, UL



Applications

The H41q-HS is ideal for high-speed machinery safety in industries such as automotive (press lines, robotics), packaging (high-speed wrappers, cartoners), printing, woodworking, and metal forming. It handles functions like emergency stop monitoring, safety gate interlocking, light curtain evaluation, two-hand control, and safe speed monitoring. Its fast response minimizes machine stopping distances and reduces risk to operators.

Integration and Programming

Programming is done with HIMA's SILworX software, which includes dedicated high-speed function blocks for machinery safety. The controller can be integrated into a machine control network using PROFINET/PROFIsafe or EtherCAT for seamless communication with standard PLCs (e.g., Siemens, B&R). The high-speed backplane allows local expansion with digital or analog safety I/O modules without adding latency.

Reliability and Diagnostics

The H41q-HS features comprehensive diagnostics, including I/O channel monitoring, processor self-tests, and communication supervision. Any fault triggers a safe state and generates a diagnostic message. The module's robust construction ensures long service life even in harsh industrial environments with vibration and electrical noise. Its MTBF exceeds 100,000 hours.

With its exceptional speed and full safety certification, the HIMA H41q-HS (B4237-1 / 997104237) high-speed safety controller provides the performance and reliability needed for the most demanding machinery safety applications.