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L-550 Direct-Drive Mount

SKU# 600552

Price: $30,000.00

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*Price is based on PlaneWave’s Pricing Policy

The L-550 is a hybrid of the L-500s fork-arm weldment and the L-600 motors. Our “best of both worlds” L-550 has the same payload capacity as the L-600 and offers better performance with heavy payloads that do not require the swing-through clearance provided by the L-600 fork-arm.

  • Load capacity of 300 lbs (136 kg)
  • Direct-drive motors on each axis for smooth, fast, and virtually silent movement of the telescope
  • Slew speeds up to 50 degrees per second
  • High-resolution encoders on each axis for precise positioning
  • Zero backlash
  • Zero periodic error
  • PointXP mount modeling software
  • Enclosed electronics
  • Through the mount cabling
  • Alt/Az, or Equatorial installation orientation

Description

The L-Series:

Combines versatility, simplicity, and affordability by combining all the technology of our observatory class telescopes into a compact stand-alone mount. In its Alt/Az configuration, it is considerably more compact than its equatorial counterpart, allowing a larger telescope to fit in a smaller enclosure. Unlike traditional German Equatorial mounts, there are no meridian flips to deal with, and no large protruding counterweights to create a dangerous hazard in a public observatory. Alt/Az is more intuitive to use and no polar alignment is needed. Besides, it is the way the pros do it! For added flexibility, the L-Series mounts can be installed in either Alt/Az or equatorial mode with the optional wedge accessory.

L-550 Mount Features:

  • Load capacity of 300 lbs (135 kg)
  • Direct-drive motors on each axis for smooth, fast, and virtually silent movement of the telescope
  • Slew speeds up to 50 degrees per second
  • High-resolution encoders on each axis for precise positioning
  • Zero backlash
  • Zero periodic error
  • PointXP mount modeling software
  • Enclosed electronics
  • Through the mount cabling

Check out our AutoTuner software tutorial below for tuning your L-550 once it is set up and balanced!

Features:

Direct-drive motors and encoders

Direct-drive motors and on-axis encoders eliminate the need for gears, thereby eliminating backlash and periodic error. With high-resolution encoders providing the feedback for the direct-drive motors, not only will the telescope track without periodic error and backlash, but the mount will also counter wind gusts with precise servo feedback.

Incredible Slew Speed

The direct-drive motors can move the telescope at speeds up to 50 degrees per second for tracking satellites or just to minimize target acquisition time.

Dual mounting bracket

PlaneWave style mounting bracket to hold CDK17/20 onto inside of fork arm with additional option of mounting a scope on the outside of the fork arm. Optional dovetail clamp required.

Azimuth dovetail balance system

For precise center of gravity balance whether in Alt-Az or Equatorial configuration

Through the mount cabling

Access panels in the fork arm and azimuth axis allow for camera equipment cabling through the inside of the mount.

Proven CDK700/PW1000 Technology

The L-Series uses the same proven technology as the CDK700 and PW1000 which are being used in Universities around the world.

Sepecifications

Sepecifications

Mount System

Type Alt-Azimuth / Equatorial Direct Drive Mount
Weight 338 lbs (153 kg)
Max. Load Capacity 300 lbs (136 kg)
Latitude Range 0 to 90 degrees, Northern and Southern hemispheres
Cable Management Equipment cables can be wired through mount
Swing-Through Length (From Altitude Axis) 25.62″

Control System

Control Electronics PlaneWave Interface dual axis telescope control
User Interface PlaneWave Interface 4 (PWI4) Control Software with integrated PointXP mount modeling software
Homing Sensors Home position sensors are included allowing the mount can find its home position on power up.
Slew Rate 20 degrees per second (standard); 50 degrees per second (maximum), both axes
Power Requirement Accepts 120 to 240 VAC. Supplied with 120 VAC 15A IEC Type B Regulated Power Adapter.

Motion Control

Motor Control Industrial grade brushless motor control system and built in electronics
Motor – Azimuth and Altitude Direct Drive 3 Phase Axial-Flux Torque Motors
Encoder – Azimuth and Altitude 152mm stainless steel encoder ring with reader built into the azimuth and altitude axes. 18,880,000 counts per revolution (0.069 arcsecond resolution).
Motor Torque Approximately 20 ft-lbs continuous; 50 ft-lbs peak
Drive Electronics Industrial grade, off-the-shelf brushless motor drives for each axis with custom designed interface card
Telescope Control Software

Uses PWI4. Incorporates PointXP mount modeling software by Dave Rowe.
All ASCOM compatible.

System Performance

Pointing Accuracy <10 arcsecond RMS with PointXP Model
Pointing Precision

2 arcseconds at sidereal velocity

Tracking Accuracy

0.3 arcseconds over a 5-minute period at sidereal velocity

System Natural Frequency 10 Hz or greater

 

For warranty information please check our Standard Warranty Page

Included Items

Included Items

Hardware 
  • Six 1/2-13 x 1 1/4″ socket head cap screws to bolt the mount to the pier, or wedge 
  • Six 1/2-13 washers 
  • One extended length shoulder bolt for RA axis to EQ wedge alignment 
One 16′ USB cable  To connect the mount to the observatory control computer 
One 120VAC power cable  To provide power to the mount 
Standard Allen Key set  For tightening bolts used on the mount 
Flash drive  Contains PWI4 software for mount control and instructions for installation 
3/8 Socket  Used for operating the RA balance leadscrew on the mount 
Gamepad  Used for control of the mount tracking speeds for visual observing 
Dovetail Saddle (200919)  To mount OTA  
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