Instruction Manual

14351 Pipeline Ave., Chino, CA 91710 • Tel: [phone] • Fax: [phone]
Website: www.lunainc.com Email: [e-mail]
Section 5. Manual Control Add-on Board
An optional manual control add-on board is available. This board allows the user to
control the MDL-003 or other stepper motor without the use of an external control circuit.
It provides controls for setting the scanning rate and for performing either continuous
scanning or manual forward or reverse motion control.
Manual control board dimensions: 1 x 1.25 inches.
Figure 6 Driver board with manual control add-on board
To use the manual control add-on board, connect it to the main driver board’s control
input connector, as shown in Figure 6. The power indicator LED should turn on if the
power to the main board is connected. The controls are as follows:
Manual/auto switch: Selects between manual delay control and continuous scanning
back and forth over the full range of the MDL.
Switch position towards main board: auto scan
Switch position towards push-buttons: manual control. In this position, the
forward and reverse buttons can be used to change the delay setting.
Speed selection dial: This is a numbered dial that controls the frequency of the clock
pulse sent to the main driver board. Depending on the state of the step
selection dip switch on the main board, the MDL motor will make one full,
half, or quarter step per clock pulse.
Note: dial settings 8 and 9 are not used. If the dial is in either of these
positions, the MDL will not respond to the forward or reverse buttons or the
auto-scan setting.
Manual control board
plugs into main driver
board’s control input
connector
Reverse motion
button
Manual/auto scan
selection switch
Power
indicator LED
Forward motion
button
Speed selection
dial
Document # GP-IN-MDL-003-CONTROLB-12 Page 12 of 13