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This document provides comprehensive operating instructions for an ebm-papst device, designed for air conveyance. It covers safety regulations, technical data, connection and startup procedures, integrated protective features, and maintenance guidelines.
The device is primarily designed as a built-in component for conveying air according to its technical specifications. It operates within power systems with grounded neutral (TN/TT), phase conductor grounding, or IT power systems, adhering to network quality characteristics as per EN 50160. The fan is intended for stationary systems and is capable of conveying air at ambient pressures between 800 mbar and 1050 mbar, within a specified ambient temperature range. It incorporates all necessary protective devices and must be operated in accordance with these instructions.
The device features a motor with reverse polarity and locked-rotor protection. Its electronics housing is made of die-cast aluminum, painted gray, while the impeller is PP plastic. The fan housing is constructed from galvanized sheet steel coated with black plastic, and the guide vanes are PP plastic. A steel guard grille, coated with black plastic, is also included. The fan operates with a clockwise rotation when viewed toward the rotor, and its insulation class is "F" with an IP55 degree of protection. It is equipped with ball bearings and offers operation and alarm display via an LED. Technical features include an external 15-50 VDC input for parameterization, an alarm relay, an integrated PI controller, configurable inputs/outputs (I/O), MODBUS V6.3, motor current limitation, RS-485 MODBUS-RTU, and soft start. It also provides a voltage output of 3.3-24 VDC (Pmax = 800 mW) and a control interface with SELV potential safely disconnected from the mains. Thermal overload protection for electronics/motor and line undervoltage/phase failure detection are integrated.
The device's control interface includes various inputs and outputs for flexible configuration. Digital inputs (IO1, IO2, IO3) can be configured for functions such as disable input, error reset, or PWM input. Analog inputs (IO2, IO3) support 0-10V/PWM or 4-20mA signals for set value control. Analog outputs (IO3) can provide fan modulation level. A voltage output (Vout) is available for supplying external devices. Status relays (COM, NC) provide feedback on the device's operational state, indicating good status, warning, or failure via an LED. The device supports MODBUS RTU for communication and parameterization.
The device is designed for ease of installation and connection. Mechanical connection requires careful handling during unpacking to avoid damage to blades and to ensure proper seating on a soft surface. It must be securely positioned during installation, with fastening screws tightened to prevent slippage. Vibration isolation is crucial; if connected to air ducts, the connection should be isolated using compensators or similar elements. The fan should be attached stress-free to the substructure.
Electrical connection involves connecting to a power supply that matches the device's voltage, using cables that meet specified installation regulations for voltage, current, and insulation material. A protective earth connection is mandatory and must be established first. Cables should be routed to prevent contact with rotating parts and to maintain clearance from supply lines for control lines to avoid interference. The terminal box is designed for secure cable connections, with recommended stripped lengths and tightening torques for wire-end ferrules. Cable routing should prevent moisture ingress into the terminal box, ideally by routing cables in a U-shaped loop or by creating a drip edge.
The device features integrated protective functions that automatically switch off the motor in case of faults such as rotor position detection errors, blocked rotor, line undervoltage, or phase failure. An automatic restart follows once the fault condition is cleared.
Regular maintenance is essential for ensuring a long service life and proper operation. This includes periodic checks for soiling and external damage. Cleaning should only be performed when the fan is not in motion and the power supply is switched off via the control input. Dry cleaning, such as using compressed air, is the preferred method. Aggressive cleaning agents, high-pressure cleaners, acids, alkalis, solvents, or pointed/sharp-edged objects must not be used. All cleaning agents must be completely removed.
If severe corrosion is observed on load-bearing or rotating parts, the device must be switched off immediately and replaced; repair of such parts is not permitted. If cleaning does not eliminate vibrations, rebalancing may be necessary. The fan is equipped with maintenance-free ball bearings designed for a service life of 40,000 hours. If bearing replacement is needed after this period, ebm-papst should be contacted. Maintenance intervals should be adapted to the actual level of dust exposure.
Safety inspections should be conducted regularly, at least every six months. This includes visual inspection of the contact protection cover for intactness, checking for damage to blades and housing, and verifying the fastening of cables. Insulation of cables should be checked for damage, and cable gland tightness should be verified. Condensation drainage holes should be inspected for clogging. Welds should be checked for crack formation, and abnormal bearing noise should be investigated.
For devices not operated for a lengthy period, specific startup procedures are recommended to prevent bearing damage and allow any condensate to evaporate. In a dry environment, the device should be started up and operated at full speed for one hour every four months. In a damp environment, this should be done for at least three hours once a month.
In case of malfunctions, the device should not be repaired by the user but sent to ebm-papst for repair or replacement. Warning and status codes, indicated by an LED on the electronics housing, provide diagnostic information. These codes, displayed with various colors and flash patterns, help identify issues such as current limitation, line impedance problems, power limiter activation, or temperature warnings. Errors, such as phase failure, output stage overheating, communication errors, Hall sensor errors, or motor blockage, are also indicated, often requiring specific remedies like checking line voltage, improving cooling, or manual reset.
Disassembly and disposal of the product must be performed by qualified personnel. Components should be separated for recycling into categories such as steel and iron, aluminum, non-ferrous metals, plastics, insulating materials, cables and wires, and electronic scrap. Ferrite magnets can be disposed of like normal iron and steel. Country-specific legal requirements for disposal must always be observed.
General| Manufacturer | ebm-papst |
|---|---|
| Type | Axial Fan |
| Model Number | W3G910-LV12-03 |
| Impeller Material | Plastic |
| Housing material | Plastic |
| Protection class | IP54 |
| Bearing type | Ball bearings |
