Manual

4-2 Front Panel Functions
Eventually a CS, IN, or ESC.!2: must be executed in order to re-enable motion. There is
no front-panel way to clear the Emergency Stopped state, other than to reset the machine or
cycle the power switch. The physical position reference is usually lost if the motors are
moving when the STOP occurs, but the No Reference status bit is always set regardless.
Therefore, after the Stop is cleared, an FH command or manual re-reference should be
performed before any more XY motion, and an FZ before any Z motion.
The Emergency Stopped state can be detected by the host computer through the use of the
ESC.O command or the OS command; the ESC.O reports back immediately, whereas the
OS is not processed until any preceding ACL commands in the input buffer have been
processed.
The host can remotely force the Automove System into the Emergency Stopped state; see
the
ESC.! command. The effect is the same as if the STOP button had been pressed at the
instant the ":" of the
ESC.!1: command was received.
PAUSE
When the PAUSE button is pressed, the machine finishes any ACL command it was
executing and enters the Paused state. The PAUSE light on the front panel begins to blink,
and the machine suspends the processing of ACL commands. When the button is pressed a
second time, the light turns off and the machine resumes processing commands.
No ACL commands are lost during the Paused state if the host computer is properly
executing an input buffer handshake. See Chapter 5. If the Automove System is executing a
Download Sequence it pauses and resumes the Download Sequence; nothing is lost.
The PAUSE button is ignored while the machine is in the Emergency Stopped state. The
Paused state is canceled when the STOP button is pressed or an external Emergency Stop
switch closes.
If the PAUSE light glows steadily (i.e. doesn't blink) then one of two things has happened:
a) The PAUSE button has been locked out via the FP ("Front Panel Lockout") command,
and the button has subsequently been pushed. In this case the machine will not actually
pause until another FP is executed to re-enable the PAUSE button. You do not need to press
the PAUSE button a second time to make it pause. b) The STOP button is being pushed, or
an external Stop switch is currently actuated. (In this case the STOP light will be blinking.)
The PAUSE light will continue to glow until the STOP button or external switch is released.
The host computer can detect the Paused state through the use of the
ESC.O command. The
host can also force the Automove system into or out of the Paused state. See the PS
command in Chapter 3 and the
ESC.! and ESC.K commands in Chapter 6.
SET ORIGIN
This button causes the current carriage position (X,Y) to become the Calibrated Unit Origin
position, and the Origin Change status bit to be set. See Numeric Coordinate Systems in
Chapter 1.