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PlaneWave L-350 Direct Drive Mount

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PlaneWave Instruments L-350 mount is offers the same amazing performance as their larger L-500/L-600 mounts but in a smaller package for smaller sized telescopes.

The L-350 can accommodate 45kg/100lbs of instrument payload and can be used in an Alt-Az or Equatorial configuration. All L-series mounts are designed and manufactured by PlaneWave Instruments with zero backlash and zero periodic error, virtually silent motion and slew speeds of up to 50 degrees per second making it ideal for satellite tracking.

The L-Series mounts combines versatility, simplicity and affordability by combining all the technology of their 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-350 Mount has the the main following features:

  • Load capacity of 100 lbs (45 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
  • ASCOM Compatible
  • Enclosed electronics
  • Through the mount cabling

Please note: A mandatory shipping crate is required with the purchase of this mount.


Specifications: PlaneWave L-350 Direct Drive Mount

Mount System
  • Type Alt-Azimuth / Equatorial Direct Drive Mount
  • Weight 110 lbs (50 kg)
  • Max. Load Capacity 100 lbs (45 kg)
  • Latitude Range 0 to 90 degrees, Northern and Southern hemispheres
  • Cable Management Equipment cables can be wired through mount
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 PlaneWave Interface (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

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