Manual

4-4 Front Panel Functions
The AM ("Arrow Mode") command in Chapter 3 describes a way of using the TEACH
button to teach Z axis points. The MN ("Mid-move Digital Inputs Response") command can
teach the current position automatically during a move. The MT ("Move To Taught Point")
command moves the carriage back to the most recent Taught Point.
Arrow Buttons
The Arrow buttons are four buttons (Up, Down, Left, Right) for producing manual carriage
motion in X and Y or Z.
When an Arrow button is pressed, the carriage steps one physical motor count (i.e. one
microstep). If the button is held down for a short while, the carriage begins to move slowly.
If the FAST button is pressed along with an Arrow button, the carriage immediately begins
to move at a higher speed. (The FAST button is the unlabeled button in the center.) When
all Arrow buttons are released, the motors are stopped immediately and are left at full power.
The Position Change status bit is set. (See the OS command in Chapter 3.)
Immediately after power up, Arrow motion is unconstrained. As soon as the first FH
command or manual re-reference has executed, XY Arrow motion is constrained to the
travel limits. If the carriage is presently outside the travel limits, the Arrow buttons are only
able to move it closer to the travel limit rectangle, not further away. (See the TL command.)
The Arrow buttons are ignored while the machine is in the Emergency Stopped state, but
they work normally during the Paused state.
All of the speeds and delays associated with the Arrow buttons can be changed via the PE
command. Also, the functions of the Left and Right Arrow buttons can be swapped, or the
Up and Down buttons.
Z AXIS
This button changes the effects of the Arrow buttons and the SET ORIGIN and GO TO
ORIGIN buttons. When you push Z AXIS the machine goes into Z Arrow mode and turns
on the lights in the Up and Down Arrow buttons. The second time you push the button the
lights go off and the Arrows revert to their normal XY mode.
In Z Arrow mode the Up and Down Arrows control the Z motor instead of the Y motor. The
GO TO ORIGIN button causes the Z motor to move to its Home position. The manual
re-reference (FAST/GO TO ORIGIN -- see below) causes the Z motor to seek its Home
switch and sets the Position Change status bit. SET ORIGIN has no effect, since the Z axis
origin always remains at the Z Home position. Left and Right Arrows also have no effect.
After power up until the first FZ command or manual Z re-reference, Z axis Arrow motion is
unconstrained. After the Z Home switch has been found, Z Arrow motion is limited by the Z
axis modulus. (See the CZ command.)
Z Arrow mode can also be set or canceled via the AM ("Arrow Mode") command. See
Chapter 3.