Pan and Tilt Unit 20 kg
Precision Two-Axis Positioner for Antenna, Electro-Optical and Sensor Payloads in Defence and Coastal Environments
The Pan and Tilt Unit 20 kg is a precision two-axis surveillance positioner designed and supplied by System Controls for antenna, electro-optical and sensor payloads up to 25 kg. Delivering closed loop position control on both azimuth and elevation axes with 100 microrad accuracy, N x 360° azimuth range and velocity settable from 0.001°/s to 100°/s, the PTU is engineered for remote tracking operations via joystick or PC-based GUI.
What is the Pan & Tilt Unit 20 kg?
The Pan and Tilt Unit 20 kg is a robust, precision two-axis positioner delivering accurate dynamic motion in both azimuth and elevation axes via DC motors with precision gear mechanism. Three layers of safety including soft limits, electrical limits and mechanical limits protect the payload and system across all operating conditions.
| Parameter | Specification | |
|---|---|---|
| Azimuth Drive | ||
| Movement Control | Closed Loop Position Control | |
| Scanning Velocity | Settable between 0.001 deg/s to 100 deg/s | |
| Range | N x 360 deg (continuous or non-continuous) | |
| Resolution | 50 microrad | |
| Accuracy | 100 microrad | |
| Elevation Drive | ||
| Movement Control | Closed Loop Position Control | |
| Scanning Velocity | Settable between 0.001 deg/s to 100 deg/s | |
| Range | -15 deg to +90 deg | |
| Resolution | 50 microrad | |
| Accuracy | 100 microrad | |
| Brake Requirement in Elevation | Available | |
| Others | ||
| Payload and Payload Mounting | 25 kg max, Top / Side / Top and Side Mount | |
| Pedestal Weight | 15 kg max | |
| Power Input | 20-30V DC | 3A |
| Interface | RS422 / Ethernet | |
| Finish | Painting or Powder Coating per customer requirement | |
| Control Unit | Hard Control Panel with Joystick or through Computer | |
| Dimension | L-220mm; B-240mm; H-400mm | |
| Slip Ring (if required) | ||
| Communication | 8 | |
| Video1 and Video2 | 4 | |
| Payload Power (24VDC at 5A) | 2 | |
| Operating Modes | Standby/Safe mode, Go-to Point mode, Joystick/Keypad | |
| Safety | Soft limits, Electrical limits, Mechanical limits | |
| Controls and Monitoring | PC Based GUI (Windows/Linux) | |
| Environmental | ||
| Operating Temperature | -30C to +55C | |
| Storage Temperature | -30C to +70C | |
| Altitude | 10000 ft above MSL | |
| Humidity | 95% at 45C | |
| Wind Operational | 85 kmph | |
| Wind Survival | 120 kmph | |
| EMI/EMC | MIL-STD-461E | |
| Vibration Bump Shock | MIL-STD-810F | |
| Salt Fog | Seashore environment - 5% NaCl - 100% humidity - wind borne salt | |
| Sealing | IP65 | |
| Accessories | Heavy Duty Tripod (as per customer requirement) |
Closed Loop Precision Across Both Axes
Both azimuth and elevation axes use closed loop position control delivering 100 microrad accuracy and 50 microrad resolution. Scanning velocity is command-settable from 0.001°/s to 100°/s, providing the slow precise scan rates needed for area surveillance and the fast slew rates required for target tracking and rapid sensor repositioning across a wide range of mission profiles.
Multiple Control Modes for Operational Flexibility
Three operating modes, standby/safe, go-to point and joystick/keypad, are available via RS422 or Ethernet interface with a hard control panel joystick and PC-based GUI running on Windows or Linux. This gives operators the flexibility to command the PTU manually in the field, autonomously from a command system or remotely from a control station, covering the full range of defence surveillance operational scenarios.
Flexible Azimuth Rotation with Slip Ring Support
Azimuth rotation is available as N x 360° continuous or non-continuous, with reliable slip rings providing 8 communication channels, 4 video channels and 2 payload power channels at 24VDC at 5A for uninterrupted data link, video link and power supply to the payload during continuous rotation. This makes the PTU directly suitable for rotating surveillance and tracking systems requiring real-time video and data continuity.
Three-Layer Safety Architecture
The PTU incorporates three independent layers of safety: software soft limits, electrical limits and mechanical limits. This layered approach protects both the payload and the unit across all operating modes including autonomous go-to point moves, joystick control and standby conditions, meeting the reliability and safety requirements of defence surveillance and tracking system integration.
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It is a precision two-axis positioner for antenna, electro-optical and sensor payloads up to 25 kg. It delivers closed loop position control, 100 microrad accuracy, N x 360° azimuth rotation and remote tracking via joystick or PC-based GUI on Windows and Linux.
Both axes deliver 100 microrad accuracy with 50 microrad resolution via closed loop position control. Scanning velocity is settable from 0.001°/s to 100°/s by command on both axes.
Azimuth is N x 360° available as continuous or non-continuous. Elevation is minus 15° to plus 90°. An elevation brake is available as standard.
Yes. Azimuth rotation can be N x 360° continuous or non-continuous. For continuous rotation, slip rings provide 8 communication channels, 4 video channels and 2 payload power channels at 24VDC at 5A.
Yes. The PTU is mountable on tripod, mast and other platforms. A heavy duty tripod is available as an accessory as per customer requirement.
RS422 and Ethernet interfaces with hard control panel joystick or PC-based GUI on Windows and Linux. Operating modes: standby/safe, go-to point and joystick/keypad.
