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MPC-385 SERIES OPERATION MANUAL – REV. 3.21K (20201120)
is first along the currently set diagonal until either the X-axis or Z-axis reaches its origin (0).
Which one of these occurs first is a function of the diagonal angle and the location at the time
HOME is pressed. Once the first limit is reached, the unit will move the two remaining axes
simultaneously to their origins (0). The only allowed change in this stereotyped move is that
the Y-axis move can be eliminated. This is done via DIP switch 8 on the back of the MPC-200
controller. (See Controller DIP switch setting instructions on Page 21).
WORK POS.: This button has three functions:
1. With the STOP/SET button is held down, a momentary press of WORK POS. makes the
current location the "Work Position". A beeper will sound to indicate that the operation is
complete, and the location has been saved. Typically, this is a location where the pipette
tip is under the microscope objective and near the cells or tissue of interest.
2. Once you have defined a Work Position, a momentary press of WORK POS. will cause the
manipulator to move to the defined Work Position, providing the manipulator last move
was to Home. The move will occur along the predefined path that the manipulator moved
to get to Home (described above) but in the opposite direction. This is the reason why
Work Position moves
must follow Home moves; the move to Home defines the return trip.
In either case, the movement along the diagonal as you come in and out of the
preparation/dish/bath should assure that the pipette tip will not hit anything on the way
in or out.
3. When WORK POS. is held down for longer than 2 seconds, the current manipulator is
locked so that none of the buttons or the ROE knobs will cause it to move. The lock is
released by holding WORK POS. down again. A beep will indicate that the lock is enabled
or disabled, and the display will indicate the locked state.
Note that like HOME, the Y axis movement can be disabled when WORK POS is pressed, as
set via DIP switch 8 on the back of the MPC-200 controller (see Controller DIP switch
setting instructions on Page 21).
STOP/SET: This button has two functions:
1. When held down, STOP/SET" performs a "Set" function in combination with the "WORK
POS." key. Think of it as a shift key when held down.
2. A momentary press of STOP/SET during a robotic move (see HOME, WORK POS. and
CENTER) will immediately "Stop" the movement.
Think of this as your panic button
when you see your pipette headed somewhere that you don't want it to go!
2.3.2 Black Selector Switches:
MODE: The MODE Selector controls the speed and the relative fineness of movement of the
manipulator produced by rotating the ROE knobs. As MODE increases from 0 to 9,
movement gets finer and slower. As explained in "INITIAL OPERATING INSTRUCTIONS",
MODE 0 is Accelerated Mode. In MODE 0, slow turns of the ROE knob produce medium
course moves for moving a pipette under a microscope in the vicinity of a cell. Prolonged, fast
turns of the ROE knobs cause the controller to accelerate to top speed for long, imprecise
movements for rapid manual positioning of the pipette. The remaining MODES (1-9) produce
moves of increasing sensitivity and decreasing speed. In practice, most users will find that
MODE 5 or 6 will provide the necessary dexterity of movement for the final approach to a
cell. The current MODE setting is displayed in the upper right of the ROE-200 display.
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