1. Úvod
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the BELIMO LF24-S US Spring Return Actuator. Please read this manual thoroughly before attempting any installation or operation.
The BELIMO LF24-S US is a high-quality spring return actuator designed for precise control in various industrial applications. It operates on 24V AC/DC and features a robust design for reliable performance.
2. Bezpečnostní informace
VAROVÁNÍ: Electrical shock hazard. Disconnect power before installation or servicing. Installation and maintenance should only be performed by qualified personnel.
- Zajistěte dodržování všech místních a národních elektrických předpisů.
- Ověřte napájení objtage matches the actuator's specifications (24VAC/DC).
- Do not operate the actuator beyond its specified torque or operating limits.
- Chraňte pohon před vlhkostí a extrémními teplotami, pokud není pro takové podmínky výslovně určen.
3. Konec produktuview
The BELIMO LF24-S US is a compact spring return actuator. Key features include:
- Model: LF24-S US
- Napájení: 24VAC/DC, 50/60Hz, 7VA, 5W
- Točivý moment: 35 in-lb (4 Nm)
- Provozní doba: Approximately 75 seconds (motor), 20 seconds (spring return)
- certifikace: NEMA 2, Class 2 Supply, CE, UL US Listed
- Pomocný spínač: 3A at 250VAC (S1, S2, S3 terminals)
Obrázek 1: BELIMO LF24-S US Spring Return Actuator. This image shows the front view of the actuator, highlighting the model number, brand, power specifications, torque rating, operating times, certifications, and wiring terminals. A mounting bracket is visible at the top.
4. Specifikace
| Funkce | Specifikace |
|---|---|
| Číslo modelu | LF24-S US |
| Napájení | 24VAC/DC, 50/60Hz |
| Spotřeba energie | 7VA (apparent), 5W (rated) |
| Točivý moment | 35 in-lb (4 Nm) |
| Doba chodu motoru | 75 sekund |
| Spring Return Time | 20 sekund |
| Hodnocení pomocného spínače | 3A při 250VAC |
| Certifikace | NEMA 2, Class 2 Supply, CE, UL US Listed |
| Rozměry produktu | 9 x 3 x 4 palce |
| Hmotnost | 3.44 libry |
| Typ montáže | Držák na zeď |
| Typ konektoru | Šroub |
| Materiál | Plast |
| Barva | Pomerančový |
5. Nastavení a instalace
5.1 Montáž
- Ensure the mounting surface is stable and capable of supporting the actuator's weight (3.44 lbs).
- Mount the actuator using appropriate fasteners for wall mounting. The actuator includes a mounting bracket as shown in Figure 1.
- Ensure sufficient clearance for wiring and maintenance access.
5.2 Zapojení
Refer to the wiring diagram provided with the actuator for specific connections. General wiring guidelines are as follows:
- Connect the 24VAC/DC power supply to the designated power terminals (e.g., '1' and '2' or 'COM' and '+').
- Utilize the screw-type connectors for secure electrical connections.
- If using auxiliary switches, connect external circuits to terminals S1, S2, S3 as required. These switches are rated for 3A at 250VAC.
- Ensure all wiring complies with NEMA 2 and Class 2 Supply standards.
6. Návod k obsluze
The BELIMO LF24-S US actuator is designed for automatic operation based on control signals. It features a spring return mechanism.
- Upon receiving a control signal, the actuator will drive the connected damper or valve to its commanded position. The motor run time is approximately 75 seconds.
- In the event of power loss or removal of the control signal, the spring return mechanism will automatically drive the actuator to its default (fail-safe) position within approximately 20 seconds.
- The position indicator on the actuator (marked 0-6 and CW) shows the current rotational position. "CW" indicates clockwise rotation.
7. Údržba
The BELIMO LF24-S US actuator is designed for maintenance-free operation under normal conditions. However, periodic checks are recommended:
- Vizuální kontrola: Periodically inspect the actuator for any signs of physical damage, loose connections, or corrosion.
- Integrita kabeláže: Ujistěte se, že všechna elektrická připojení zůstávají pevná a bezpečná.
- Test funkčnosti: Verify the actuator operates smoothly through its full range of motion and that the spring return function is operational.
Do not attempt to lubricate or disassemble the actuator, as this may void the warranty and compromise its performance.
8. Řešení problémů
| Problém | Možná příčina | Řešení |
|---|---|---|
| Pohon se nepohybuje | No power supply; Incorrect wiring; Faulty control signal | Zkontrolujte připojení napájení a hlasitosttage; Verify wiring against diagram; Test control signal source. |
| Actuator moves slowly or erratically | Insufficient power; Mechanical obstruction; Damaged unit | Confirm stable 24VAC/DC supply; Inspect for obstructions in the connected mechanism; If damaged, contact support. |
| Spring return not functioning | Internal spring mechanism failure; Mechanical obstruction | Ensure no mechanical obstruction; If issue persists, the unit may require replacement. |
For problems not listed or if solutions do not resolve the issue, contact technical support.
9. Záruka a podpora
9.1 Záruka
The BELIMO LF24-S US Spring Return Actuator is covered by the manufacturer's standard warranty. For detailed warranty terms and conditions, please refer to the official documentation provided by BELIMO or contact your supplier. Unauthorized repairs or modifications may void the warranty.
9.2 Technická podpora
For technical assistance, troubleshooting guidance, or spare parts inquiries, please contact your authorized BELIMO distributor or the BELIMO customer support team. Have your model number (LF24-S US) and serial number (if applicable) ready when contacting support.