Helios Family Integrated Servo Drives
- Technology
- Photonics
- Partner
- Overview LTD
The Helios Family features a modular electronics and magnetic design, providing a scalable off-the-shelf or bespoke servo drive platform to meet demanding pointing and motion-control applications across defence, security, broadcast/Pro AV and other industrial markets.
If your design demands high torque, agile motion, continuous rotation, and high bandwidth data/power pass-through — Helios offers a compact, integrated servo drive solution with minimal size, weight and power (SWaP) footprint and full support from Overview for integration.
Helios drives are ideal for systems requiring smooth, precise, and agile motion, including:
- Large PTZ camera platforms
- Counter-UAS sensor systems
- Low-latency edge-AI sensor suites
- Mobile and vehicle-mounted sensor systems
- Free-space optical communications links
- Satellite communications pointing systems

Range features
A high level overview of what this range offers
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Modular design: Helios supports both standard and customised configurations to match specific mission or platform needs.
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Large payload support: Designed for higher-performance payloads such as multi-sensor systems, PTZ cameras and free-space communications.
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High bandwidth slip-ring passage: Central bore and optional hybrid copper/fibre-optic slip-ring enable high data throughput alongside continuous rotation.
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Built-in stabilisation capability: Includes IMUs and supports embedded mechanical stabilisation for mobile or dynamic platforms.
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Robust control interfaces: Supports industry standard control via I²C and CAN, enabling remote drive placement and integration flexibility.
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Precision & agility: Like other Overview drives, Helios delivers zero-backlash, direct-drive precision (repeatability down to ~0.0055°) and a wide speed/acceleration range.
What’s in this range?
All the variants in the range and a comparison of what they offer
| Parameter | Helios 3.0 | Helios 4.0 | Notes / Additional Information |
|---|---|---|---|
Nominal Torque | 3 Nm | 4 Nm | Off-the-shelf standard variants, custom torques available |
Nominal Supply Voltage | 48 V DC | 48 V DC | Drive electronics designed for 48 V system operation |
Unit Mass / Weight | ~920 g | ~1,300 g | Approximate mass for standard config; custom variants may differ |
Maximum Speed | ~1,000°/s | ~720°/s | High agility; acceleration up to several thousand rad/s² in some use-cases |
Compatible Payload (Indicative) | Up to ~15 kg (multi-sensor) | Up to ~15 kg (multi-sensor) | Large payload capability – actual depends on geometry, mounting, slip-ring option |
Slip-Ring / Bore Features | Internal bore Ø ~25 mm with optional hybrid fibre-optic / copper slip-ring | Same bore and slip-ring options | Enables high-bandwidth data/power pass-through |
Control Interfaces | I²C standard; includes CAN interface on 4.0 variant | I²C + CAN support | Enables remote control, high-bandwidth integration |
Precision / Repeatability | Repeatability down to ~0.0055° (≈ 18 arcsec) | Same precision capability | Direct-drive, zero-backlash design ensures high accuracy |







