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Emotron EMX-R 25S Industrial Rotation Monitor Controller
Emotron EMX-R 25S Industrial Rotation Monitor Controller
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Emotron EMX-R 25S Industrial Rotation Monitor Controller
Control unit for rotary heat exchanger drive systems with built-in rotation monitoring
Overview
This is an Emotron EMX-R 25S control unit, Version R2, the "size 25" S-model controller from Emotron's EMX-R drive system range for rotary heat exchangers. The EMX-R system pairs this control unit with a matched motor to drive and monitor the rotor of an air handling unit's heat exchanger wheel, controlling speed and confirming that the rotor is actually turning as commanded. The S-model provides core operation-status and alarm indication, and is built for permanent installation as part of an HVAC drive system.
Key Features
- Built-in electronic rotation monitor (RotoSens): Confirms rotor rotation using the motor itself as the sensor, so no separate external rotation sensor is required for standard operation.
- Optional external sensor input: Also supports connection of an external rotation sensor with magnet for applications that call for it, selectable via DIP switch.
- Automatic purging mode and holding torque: Built-in functions to support cleaning cycles and maintain rotor position when stopped.
- Integrated EMC filter: Fitted as standard across all EMX-R control units, removing the need for special EMC cable glands or couplings.
- Electronic motor protection: Continuously monitors the motor and includes built-in overload and short-circuit protection, with an alarm on loss of mains supply.
- Test switch for commissioning: A built-in TEST switch allows the drive to be run at full speed independent of the control signal, simplifying installation checks.
What's Included
| Model | Function | Qty |
|---|---|---|
| EMX-R 25S | Rotation monitor controller, rotary heat exchanger drive system | 1 |
PN: 01-2174-11 | SN: AB0745020340 | Version R2 | Made in EU
Technical Specifications
Supply voltage: 1 × 230 VAC ±15%, 50/60 Hz.
Current rating: 1.3 A.
Enclosure rating: IP54.
Alarm relay: Max 5 A, 250 VAC.
Control unit dimensions / weight: Approx. 150 × 200 × 60 mm, 1.7 kg.
Compliance: CE marked.
Compatibility & Applications
The EMX-R 25S control unit is designed to pair with a matching size-25 Emotron EMX-R motor as part of a complete rotary heat exchanger drive system, commonly used in air handling units such as those built by Swegon and Fläkt Woods. It's suited to HVAC installations that need reliable rotor speed control combined with confirmed-rotation monitoring, helping prevent energy loss and frost damage that can occur if a heat exchanger wheel stops turning without detection.
