For the MCU
lite-2
this LED has 5 states as described below:
LED off - System not switched on or MCUlite-2 not connected
LED lit (red) - System in automatic mode (joystick not enabled)
LED lit (amber) - System in manual mode but joystick not enabled
LED lit (green) - Joystick enabled
LED lit (red flashing) - Speed override set below 10% in automatic mode.
If both the ‘MCU enabled’ LED and ‘Probe disabled’ LED are flashing (‘MCU enabled’ LED flashing
between red and green, ‘Probe disabled’ LED flashing red on/off) this indicates there is a scale failure
on one of the CMM axes.
enable’ function is that this button has to be operated the LED will not illuminate until this is
done.
Joystick
enable
button
On the MCU1 and MCU5 the ‘Joystick enable’ is a single button. On MCU
lite-2
there are 4 buttons,
to enable ‘Slow’ speed on each side (left and right handed use) and to enable ‘Fast’ speed on each
side as well.
The ‘Joystick enable’ button is intended to be used as a ‘deadman’s handle’, preventing the
accidental movement of the machine. If enabled, two actions are required to initiate CMM motion:
press ‘Joystick enable’ button and operate the joystick.
Joystick
and
associated
button
function
All three axis movements are controlled from the one joystick. Moving the joystick left, right,
backwards and forwards controls the CMM X and Y movements. The Z axis is controlled by twisting
the joystick clockwise and anti-clockwise (configurable) *.
If a trigger event occurs during joystick operation, the CMM will stop and back away from the surface
along the vector that it was travelling. After the back off operation, it is necessary for the joystick to
return to its null position for a set period of time before the joystick will permit movement of the CMM.
The default value is 0.05 seconds *. The back-off speeds and distances are defined by the UCC
configuration settings *.
When in head mode, operation of the joystick can move the axis of the head. Pushing the joystick
forwards and backwards will operate the A axis and twisting the joystick will operate the B axis.
For the MCU1 and MCU5, when in rotary table mode, the W axis of the table is controlled by the
twisting of the joystick.
* These values and configuration settings will have been set by your CMM service provider.
Joystick
axis
locks
buttons
Permit the locking of one or more axes of the CMM, ignoring any joystick deflections for that axis.
On each of the axis lock buttons there is a LED indicator that will light red when the respective axis is
locked, on the MCU1 and MCU5 there will also be a padlock symbol next to the respective axis, see
Page 18 of 31
MCU1, MCUlite-2 and MCU5 user's guide
02/01/2013
file://C:\TEMP\~hhC0D2.htm