ASTROSIB (А)FMDD
Монтировка ASTROSIB FMDD-700
ASTROSIB FMDD-700

ASTROSIB (A)FMDD Mounts

Professional astronomical mounts based on direct drive technology. Designed for telescopes of various apertures, available in equatorial and alt-azimuth configurations.

Full compatibility with ASTROSIB telescopes.

High-precision pointing with guaranteed angular velocity

Continuous object tracking at constant or variable angular velocity

Smooth and fast retargeting between objects

View mount tracking accuracy graphs…

Монтировка ASTROSIB (А)FMDD дополнительный вид
ASTROSIB FMDD-700
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Direct drive technology eliminates mechanical transmission — gears, belts, drives — and completely removes periodic error and backlash.

Key features:

  • Increased efficiency: no energy losses due to friction in belts, chains, or gearboxes
  • Low noise: fewer moving parts — fewer sources of vibration
  • Longer service life: fewer moving parts means fewer components that can fail
  • High positioning speed: permanent magnet synchronous servo drives
  • High rigidity: no gearbox, no mechanical backlash
Компоненты системы управления
ASTROSIB FMDD-1000 altitude/declination axis direct drive unit

ASTROSIB (А)FMDD- 700, -820, -1000

Category:

Description

Технические характеристики

Технические характеристики

Parameter (А)FMDD-700 (А)FMDD-820 (А)FMDD-1000
Payload capacity (telescope with equipment), kg 150 350 400
Operating temperature range, °C −35 to +45
Position feedback Absolute optical encoders D200, 26-bit, both axes (encoder resolution 1/50 arcsec)
Internal cable routing Present
Mechanical and programmable safety limits Present
Settling time after slew on both axes, sec 2
Nominal DC supply voltage, V 12/60
Fork half-axis spacing / dovetail spacing, mm 740/688 880/828 1060/977
Distance from Dec (altitude) rotation axis to fork base, mm 700 840 990
RA (azimuth) axis angular travel range, deg -350…+350
Dec (altitude) axis angular travel range, deg −5 to +185
RA (azimuth) slew speed range, deg/s 0…20 (selectable)
Dec (altitude) slew speed range, deg/s 0…20 (selectable)
Pointing accuracy, arcsec 20
RA (azimuth) tracking speed range, deg/s 0 ÷ 2
Dec (altitude) tracking speed range, deg/s 0 ÷ 2
Mean tracking accuracy over 1200 sec, arcsec 0.3
Azimuth adjustment range, deg ±5
Vertical position adjustment range, deg 88°-92° (alt-az)
20°-70° (eq.)
Wind resistance up to 10 m/s
RA axis diameter, mm 100 120 150
Max power consumption, W 400 500 550
Max weight, kg 320 520 800
(А)FMDD-700
Payload capacity (telescope with equipment), kg
150
Fork half-axis spacing / dovetail spacing, mm
740/688
Distance from Dec (altitude) rotation axis to fork base, mm
700
RA axis diameter, mm
100
Max power consumption, W
400
Max weight, kg
320
(А)FMDD-820
Payload capacity (telescope with equipment), kg
350
Fork half-axis spacing / dovetail spacing, mm
880/828
Distance from Dec (altitude) rotation axis to fork base, mm
840
RA axis diameter, mm
120
Max power consumption, W
500
Max weight, kg
520
(А)FMDD-1000
Payload capacity (telescope with equipment), kg
400
Fork half-axis spacing / dovetail spacing, mm
1060/977
Distance from Dec (altitude) rotation axis to fork base, mm
990
RA axis diameter, mm
150
Max power consumption, W
550
Max weight, kg
800
General characteristics
Operating temperature range, °C
−35 to +45
Position feedback
Absolute optical encoders D200, 26-bit, both axes (encoder resolution 1/50 arcsec)
Internal cable routing
Present
Mechanical and programmable safety limits
Present
Settling time after slew on both axes, sec
2
Nominal DC supply voltage, V
12/60
RA (azimuth) axis angular travel range, deg
-350…+350
Dec (altitude) axis angular travel range, deg
−5 to +185
RA (azimuth) slew speed range, deg/s
0…20 (selectable)
Dec (altitude) slew speed range, deg/s
0…20 (selectable)
Pointing accuracy, arcsec
20
RA (azimuth) tracking speed range, deg/s
0 ÷ 2
Dec (altitude) tracking speed range, deg/s
0 ÷ 2
Mean tracking accuracy over 1200 sec, arcsec
0.3
Azimuth adjustment range, deg
±5
Vertical position adjustment range, deg
88°-92° (alt-az)
20°-70° (eq.)
Wind resistance
up to 10 m/s