Telescope Drive Unit FS2 with control box (2m cable) and instruction manual, without motor cables, supply voltage 9V - 30V DC
The FS2 Telescope Drive Unit is suitable for all equatorial mounts with bipolar stepper motors.
Microstep Mode
The current for the two stepper motors is sine wave shaped. This means that the motors run very silent, with no vibrations and with a very steady torque. This is called microstep mode. Normally a stepper motor is driven in full step or half step mode. This means that the motor currents are switched on and off according to a special pattern. At each switching event the motor shaft moves a small amount. Using microstep mode the currents in the motor coils are not switched on and off, but they are modified continuous with the shape of a sine wave respectively a cosine wave. There arise no jerky motions at the motor shaft. The torque of the motor depends only on the magnitude of the current and is therefore not smaller than in full or half step mode.
5 programmable Slewing Speeds
5 programmable slewing speeds up to 3200x, for example 1/4x, 1x, 5x, 20x, 60x or: 0.3x, 1x, 3x, 10x, 500x. The maximum available speed depends on your motors and gears. You will find some examples on the last instuction manual page.
Tracking Speed
The tracking speed can be selected for:
- Stars, Moon, Sun
- Comets (both axes are programmable, King Rate is possible too)
- Earth (no tracking at all, e.g. for adjusting the optics)
Control Box
The control box has five big keys (can be used with gloves too!). The cable is 2 to 5 meters long and suitable down to –30°C (-22°F) (no PVC isolation!). Red 16 digit 5x7 dot matrix LED display for coordinates and other messages.
The brightness is adjustable in 20 steps.
Built-in red flashlight with adjustable brightness.
