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- HIMA
- F7553
- Coupling Module
- Germany
- 125 × 25 × 203 mm
- 0.1kg
- Xiamen, China
- New & In Stock
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🧾 Product Overview
Product Name: HIMA F7553
Brand: HIMA
Series: Safety System Coupling Modules
Product Type: I/O Subrack Coupling Interface Module
The HIMA F7553 is a compact, reliable coupling module designed to interface between the central CPU/controller and I/O subracks within HIMA’s safety system architecture. This module ensures stable communication and signal integrity while offering diagnostic capabilities and support for safe maintenance procedures. It integrates essential monitoring functions, such as watchdog supervision and I/O rack selection (SEL) status, enabling secure and fault-tolerant operation in mission-critical environments.
📐 Technical Parameters
| Parameter | Specification |
|---|---|
| Model | F7553 |
| Function | Coupling between I/O subrack and controller |
| Input Voltage | 5 V DC / 24 V DC |
| Power Consumption | Approx. 600 mA (5 V), 750 mA (24 V) |
| Number of Channels | Supports connection to multiple I/O racks |
| Diagnostic Indicators | LED for Watchdog (WD), LED for SEL |
| Watchdog Control | Manual switch for safe disable |
| Operating Temperature | −25 °C to +70 °C |
| Humidity Tolerance | 5% – 95% (non-condensing) |
| Mounting Width | 4 TE (rack width units) |
| Dimensions (mm) | 125 × 25 × 203 |
| Weight | 0.1 kg |
| Safety Standard | Designed for SIL 3 Safety Systems |
| Module Replacement | Hot-swappable with watchdog off |
🏭 Application Scenarios
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Safety Instrumented Systems (SIS): Ensures secure coupling between controller and I/O racks in SIL-rated systems.
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Industrial Process Plants: Oil & gas, petrochemical, power generation—where safety diagnostics are critical.
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Distributed Control Systems: Interfaces subracks with CPUs for distributed safety architectures.
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Redundant I/O Systems: Supports fault-tolerant signal routing and controlled failover.
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Maintenance-Critical Zones: Allows module servicing without complete system shutdown via watchdog disable.
⭐ Product Advantages
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Real-Time Diagnostics: Built-in LED indicators for instant visibility of watchdog and I/O rack selection status.
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Maintenance Flexibility: Watchdog control switch allows for safe removal or replacement without triggering system trip.
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Lightweight and Compact: At just 0.1 kg and 4 TE width, fits in space-constrained control cabinets.
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High Reliability: Engineered for harsh environments with wide temperature and humidity ranges.
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Compatibility: Seamlessly integrates into HIMA’s modular safety platforms.
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Power Supply Monitoring: Ensures proper voltage delivery to I/O racks, enhancing system resilience.
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Fail-Safe Behavior: Designed to maintain safety integrity during abnormal events or partial failures.
🔁 Related or Similar Models (Same Series)
| Model | Description |
|---|---|
| F7131 | Power distribution module for CPU and logic supply rails |
| F7133 | Power output module with fuse protection and monitoring |
| F7126 | DC-DC power supply module for logic voltage regulation |
| F7130A | Multi-rail monitored output module with integrated diagnostics |
| F3349 | Digital I/O module for high-density safety-critical applications |
🔝 Popular HIMA Modules (Other Series)
| Model | Description |
|---|---|
| F8627 | Main CPU module for executing safety logic |
| F8650X | Redundant controller module for large-scale systems |
| F3237 | High-channel digital input module |
| F6217 | Analog input module for 4–20 mA process signals |
| F3331 | Digital output module for actuator control |
❓ FAQ – Frequently Asked Questions (10)
Q1: What is the weight of the HIMA F7553?
A1: The module weighs approximately 0.1 kg, making it lightweight and easy to handle.
Q2: What does the “WD” switch on the module do?
A2: The WD (Watchdog) switch disables the watchdog signal temporarily, allowing the module to be replaced safely during maintenance.
Q3: Can the F7553 be used in SIL 3 certified systems?
A3: Yes, the module is designed for integration into SIL 3 safety environments.
Q4: How many TE units does it occupy in a rack?
A4: The module occupies 4 TE, a common width in HIMA modular racks.
Q5: What kind of status indicators does it provide?
A5: It has LED indicators for both Watchdog (WD) and I/O rack selection (SEL) for real-time feedback.
Q6: What voltages does it operate on?
A6: It uses 5 V DC and 24 V DC for operation and monitoring.
Q7: Can I replace the module without turning off the system?
A7: Yes, by disabling the watchdog, the module can be hot-swapped safely.
Q8: What environmental conditions can it withstand?
A8: The F7553 is rated for operation from −25 °C to +70 °C, and 5%–95% humidity (non-condensing).
Q9: What is the purpose of the SEL signal?
A9: The SEL signal determines which controller has access to the I/O subrack, useful in redundant systems.
Q10: Is the F7553 compatible with all HIMA racks?
A10: It is designed for HIMA modular racks and interfaces directly with other system components like CPUs and I/O modules.
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All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
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We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
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Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
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24-hour after-sales service guarantee team, professional and standardized management service system.