1. Parameters and Technical Specifications

• Model: K9203 / K9203A (996920360)Description: K9203 is a rack fan, while K9203A is a high-speed counting/relay module.
• Power Supply:
  • 24 V DC (for the fan)
  • 240 VAC (for the relay)

    Description: Depends on the specific sub-model.

• Rated Current:
  • 0.2 A (for the fan)
  • 10 A (for the relay)
• Airflow / Rotational Speed: 100 CFM, 2500 RPM (for the fan)Description: 3-axis design enhances airflow distribution.
• Operating Temperature:
  • –20 °C ~ +60 °C (for the fan)
  • –25 °C ~ +70 °C (for the module)
• Protection Class: IP20 (for the fan)Description: Suitable for internal cabinet use.
• Dimensions:
  • 120 × 120 × 38 mm (for the fan)
  • 22.5 × 12.5 × 10 mm (for the module)
• Weight:
  • 1.8 kg (for the fan)
  • 0.1 kg (for the module)
• I/O Points: 1000 points (for the module)Description: Cycle scan time is 50 ms, and PID calculation time is 5 ms.
• Noise Level: 35 dB(A) (for the fan)Description: Operates quietly.
• Other Features: Operation monitoring, three installation sizes, two wiring methods, support for independent multi-task operation, and line monitoring function.

2. Product Features

• High Safety: Complies with functional safety standards and is suitable for Safety Instrumented Systems (SIS).
• High Reliability: Original German manufacturing, with resistance to high and low temperatures and a long-service-life design.
• Modular Structure: Enables flexible combination, supporting multiple redundant configurations and rack mounting.
• Heat Dissipation Performance: 3-axis fans provide uniform airflow, equipped with operation monitoring to prevent system failure caused by overheating.
• Easy Installation and Maintenance: Standard 19-inch rack size, with quick snap-on assembly and simple modular replacement.
• Multi-Functional I/O: Supports 1000-point high-speed counting, PID calculation, and line monitoring, making it suitable for high-speed event recording.

3. Structure and Composition

Rack Fan (K9203)

• 3-axis fan body
• 24 V DC power drive board
• Operation monitoring circuit (indicator light/signal output)
• Mounting bracket (compatible with 19-inch racks)

High-Speed Counting/Relay Module (K9203A / 996920360)

• Main control processor (microprocessor)
• I/O interface board (normally open/normally closed contacts, counting input)
• Power distribution unit (240 VAC)
• Heat sink and housing (metal structure)
• Connection terminal block and card slot (for rack insertion and removal)

5. Installation and Maintenance Guidelines

Installation

1. Adopt a standard 19-inch rack, and fix it using card slots or screws.
2. Ensure the fan direction allows airflow to enter from the front of the cabinet and exit from the rear.
3. For module wiring, follow the rated voltage/current, and match normally open/normally closed contacts with the control circuit.

Power Supply and Wiring

1. The fan uses a 24 V DC power supply; it is recommended to install a fuse.
2. The relay module uses 240 VAC; ensure terminal blocks are tightly fastened to prevent loosening.

Operation Monitoring

1. The fan is equipped with an operation indicator light or monitoring signal; it is recommended to connect it to a PLC for status monitoring.
2. The module’s internal self-test function can read fault codes via diagnostic software.

Regular Inspection

1. Every 6 months, check whether the fan blades have accumulated dust and whether the rotational speed is abnormal.
2. Inspect modules for terminal oxidation or loosening; re-tighten if necessary.

Replacement and Upgrade

1. Adopts a plug-and-play card slot design, allowing quick replacement of faulty fans or modules after shutdown.
2. For I/O expansion, additional K9203 series modules can be added to the same rack, maintaining a unified power supply and heat dissipation solution.