AZ800 user manual - hardware
Created by: MPuchner 07.2019
version: 9600021A
Original user manual
page 12 of 68
printed: 04.03.2020
2.1
Drives and controllers
Since all drives are equipped with absolute encoders, reference runs or homefind procedures on power-on are
not needed any more.
The telescope, focuser, rotator know their current position right after start-up.
Altitude and Azimuth drives
Motors
ASA torque motors: d=290mm, max. torque = 140Nm
Controller
ASA Torque motor controller board
Feedback Sensor
high resolution optical absolute encoders
max. rotational speed
6° (up to 10° optional)
max. travel angle in azimuth
+-340°
travel range in altitude
10° … 90°
Tertiary mirror drive
Motor
ASA torque motor: d=127mm, max. torque = 12Nm
Controller
ASA Torque motor controller board
Feedback Sensor
high resolution optical absolute encoders
Focuser
Secondary mirror focusing
Motor
Linear stepper motor, min. step size < 0.1µm
Controller
ASA Stepper motor controller board
Feedback sensor
ASA absolute encoder, resolution = 0.156µm
max. travel distance
30mm
