Moonlight High Resolution Stepper Motor Quick Start Manual page 8

: S P Y Y
: + #
: - #
: P O X X
DB9 cable pin out and Stepper motor winding pin out.
We use a high quality Hurst unipolar 12 volt stepper motor with a fairly high reduction gearbox. There is a very
small amount of backlash noted with this unit. MoonLite controllers will release idle current to the motor
windings when not moving to reduce current consumption and also reduce heat generated by the motor itself;
however some controllers like ROBO focuser and others will keep the current draw continuous when not in
motion. That can cause the motor to get warm; however it will not damage the motor.
Lifting Capacity: The drawtube pressure can be adjusted to each user's preference. Increasing the pressure
increases the load capacity (vertical lifting capacity) of the focuser. Decreasing the pressure lowers the load
capacity but gives the focuser a smoother focusing action. We set the focuser at approximately 5 lbs. at time of
assembly; however, you can adjust it to be more depending on your specific needs. The ideal setting is to have
Y Y #
#
Mechanical adjustment section
N/A Set the current position where YYYY is a four-digit
N/A Activate temperature compensation focusing.
N/A Disable temperature compensation focusing.
N/A Temperature calibration offset, XX is a two-digit
signed hex number, in half degree increments.
Example 1: :PO02# offset of +1°C
Example 2: :POFB# offset of -2.5°C
unsigned hex number.
unsigned hex number.