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PlaneWave L-550 Direct Drive Mount
PlaneWave L-550 Direct Drive Mount
The L-550 is a heavy-capacity L-Series direct-drive mount rated for 136 kg (300 lb), enough to carry a second telescope on the outside hub. Direct-drive motors give zero backlash and zero periodic error with slews of up to 50° per second. It suits the DeltaRho 500, CDK17, CDK20 (f/6.8 and f/7.7), IRDK17, IRDK20 and RC20.
Mount
Type
Alt-azimuth / equatorial direct-drive
Mount weight
153 kg (338 lb)
Maximum load
136 kg (300 lb)
Latitude range
0–90°, both hemispheres
Swing-through length
650.748 mm (25.62") from altitude axis
Motors
Direct-drive 3-phase axial-flux torque motors
Motor torque
About 20 ft-lb continuous; 50 ft-lb peak
Encoders
152 mm stainless steel ring, 18,880,000 counts/rev (0.069")
Slew rate
20°/s standard; 50°/s maximum
Power
100–240 V AC 50/60 Hz
Performance and software
Pointing accuracy
<10" RMS with PointXP model
Pointing precision
2" at sidereal rate
Tracking accuracy
0.3" over 5 minutes at sidereal rate
Natural frequency
10 Hz or greater
Software
PWI4 with PointXP; ASCOM
Standard manufacturer package
PlaneWave Wide Saddle 200919
Regulated power adapter
Manufacturer documentation
PlaneWave L-550 mount
Compatibility notes Uses L-500/L-600 wedge and piers; RA balance L500204/L500206 optional.
Additional specifications Load (kg) 136 Latitude 0-90 both hemispheres Swing through (mm) 650.748 Torque 20 ft-lb cont; 50 peak Pointing <10 arcsec RMS PointXP Precision 2 arcsec Tracking 0.3 arcsec / 5 min Natural freq >=10 Hz
Riferimento
1321103
Scheda tecnica
Encoder
152 mm, 18,880,000 cpr, 0.069 arcsec
Motori
3-phase axial-flux torque
Alimentazione
100-240 VAC 50/60 Hz
Puntamento
20 deg/s std; 50 max
Tipo
Alt-az / EQ direct drive
Peso (kg)
153
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PlaneWave L-550 Direct Drive Mount The L-550 is a heavy-capacity L-Series direct-drive mount rated for 136 kg (300 lb), enough to carry a second telescope on the outside hub. Direct-drive motors give zero backlash and zero periodic error with slews of up to 50° per second. It suits the DeltaRho 500, CDK17, CDK20 (f/6.8 and f/7.7), IRDK17, IRDK20 and RC20.
Manufacturer model: PlaneWave L-550 · Specifications checked against manufacturer data on 2026-11-03