4414 F/2 ebm-papst: Smart Monitored Cooling
The 4414 F/2 is a specialized variant of the 4400 series axial fan. Like the standard model, it features the compact 119 mm x 119 mm x 25 mm housing and operates on 24 VDC, making it ideal for industrial automation. However, the critical feature here is the **/2 suffix**, which denotes a **Frequency Generator (Tachometer)** signal output. This third wire (typically white) provides a square-wave pulse proportional to the fan speed, allowing the host system (PLC, IPC, or Drive) to monitor performance in real-time. The «F» designation usually indicates a specific medium-to-high speed winding designed for sustained performance.
Detailed Technical Data
- Dimensions: 119 x 119 x 25 mm.
- Voltage: 24 VDC (Industrial Standard).
- Signal: /2 (Open Collector Tachometer).
- Airflow: Approx. 140 – 160 m³/h.
- Speed: 2900 RPM.
- Wires: 3 (Red +, Blue -, White Signal).
Field Diagnostics & Integration
Lifecycle State: Active. Diagnosis: If your machine throws a «Fan Fault» error but the fan is spinning, the Hall effect sensor for the tachometer signal may be damaged, or the pull-up resistor on the controller side is faulty. Installation Advice: Do not ignore the third wire. In many **Siemens Sinamics** or **Simodrive** units, if the drive doesn’t receive the tach pulse, it will trip the main drive to protect the IGBTs from overheating. Compatibility: Fully compatible with **Siemens S7-1200** high-speed counters (HSC) or digital inputs configured for frequency measurement. This enables predictive maintenance: if the RPM drops by 10% while voltage is constant, schedule a replacement during the next downtime.
| Metric | Value |
|---|---|
| Pulses per Rev | 2 Pulses (Standard) |
| Power Input | 5.0 W |
| Bearing | Ball Bearings |
| Material | PBT Plastic |
Why the /2 is critical?
In mission-critical automation, «spinning» isn’t enough. You need to know it’s spinning. The 4414 F/2 provides that confirmation to the BMS or PLC.
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