Solar Array Drive Mechanism. Type 4
Flight-proven compact SADM (4.3 kg, 90 A, 18 power circuits, 150,000-hr life) with extensive GEO heritage: Amos-5, Express, KazSat, Loutch.
Technical specifications
- Purpose
- Solar array wing rotation, power transmission, telemetry signal routing, shaft angle measurement
- Year of release
- 2000
- Guaranteed service life, years
- 15.5
- Estimated production/delivery time
- 12 months
- Flight heritage
- Amos-5, Telcom-3, KazSat-3, Express-AT1, Express-AT2, Express-AM8, Loutch-5A, Loutch-5B, Loutch-5V
- Customization
- Can be adapted to customer requirements
- Operating regime
- Continuous rotation
- Output shaft rotation rate, deg/min
- 0–16
- Angle measurement error (°), not exceeding
- 2.5
- Total current of power current-collecting devices, A
- 90
- Number of power supply circuits
- 18
- Number of telemetry circuits
- 15
- Operational life (hours), not less than
- 150,000
- Overall dimensions, mm
- 156 × 260 × 223
- Mass, kg
- 4.3
- TRL
- 9 (flight-proven)
About
The Solar Array Drive Mechanism Type 4 rotates solar array wings at a specified rate, transmits electrical power and telemetry signals, and measures shaft rotation angles. An electromechanical SADM with continuous rotation at 0–16 deg/min and 2.5° angle measurement error, it supports 90 A total current across 18 power circuits and 15 telemetry circuits. Compact at 156 × 260 × 223 mm, mass 4.3 kg. Released in 2000, 150,000+ hour operational life, 15.5-year guaranteed service life, 12-month delivery. Extensive flight heritage: Amos-5, Telcom-3, KazSat-3, Express-AT1/AT2/AM8, Loutch-5A/5B/5V.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
