Technical information

Appendix A: Main Controller 32

DRV Operator’s Manual and Technical Reference (rev 1 0 June 30, 2000)

A.1.1 Keypad

On the embedded computer is located a 10 button keypad composed of 2 rows of 5

buttons each. Only the first row of 5 buttons is used. Starting from the left, the buttons are

labeled "menu", "item", "next", "↑", and "↓". The "menu" key cycles through all the

available top-level menus. If the "item" key is pressed, then the sub-level items are

displayed. Successive "item" key presses cycles though the available sub-level items. On

each sub-level item are changeable parameter fields. Pressing "next" moves the cursor

one field to the right. Using the "↑" and "↓" keys on a numeric parameter increments or

decrements the parameter. Using "↑" and "↓" on other types of parameters just cycles

through the available choices. Pressing "menu" records the parameter changes and makes

them active. The menu hierarchy is detailed in Section A.1.2.

A.1.2 Menu Hierarchy

The menu hierarchy is listed below. For items with adjustable parameters, the acceptable

range is listed in the Parameter Range column. The default values are shown in the

Default column. Under no circumstance, unless under direction of AHMCT

Technical Support, should the parameters be modified. Machine damage or

malfunction may result.

Menu Item Parameter Range Default

Global Parameters

PWM? OFF, ON ON

Direct Drive? N, Y Y

Jstick dband? 0...255 75

PWM zero: -50...50 -35

Azi. loc out: 0.0...5.0 4.0

Boom up pos: 0.0…20.0 9.0

Boom loc out: 0.0...5.0 14.0

Reload defaults? No, Yes No

Reset hourmeter? No, Yes No

Reset preset 1? No, Yes No

Reset preset 2? No, Yes No

Reset preset 3? No, Yes No

Reset preset 4? No, Yes No

Display Control

Disp? blank, time,

op.time, coords,

joystick, power,

pvelo

time

Time/Date Menu

Date

Time

Wrist Parameters