50
Z-axis not moving
down
Mass on top of positioner is to
light (>250g-400g)
•
If the Low Force spring plunger is installed but the
mass on top of the stage is under 100 g, it may
not be able to move all the way down:
o
In this case remove the Low Force spring
plunger.
o
Then check to see if full travel is
achieved.
•
If the High Force spring plunger is installed but
the mass on top of the stage is under 250 g, it
may not be able to move all the way down:
o
Remove the High Force spring plunger.
o
Check to see if full travel is achieved.
Communication issues
There are communication issues
between the MEIC and the
Motion Controller.
•
Confirm that the controller is powered
, “ON.”
•
Check USB cable and ensure it is connected.
•
If using multi-stack configuration confirm that
USB and RS 485 connections are correct.
•
Try plugging the USB cable into and alternate USB
port on the MIEC including the front ports.
•
Check external control cable to ensure it is
plugged in to the sample chamber and back of
motion controller properly and is not too loose or
partially plugged in.
Controller issues
The controller won’t power on
.
•
Confirm 24V output from the power brick to the
controller:
o
Confirm 24V output from the power brick
to the controller.
•
Verify connections.
•
If the number of stacks or axes is not as expected:
o
Power off the MIEC and motion
controllers then power on the motion
controllers followed by the MIEC.
o
NOTE: When using multiple stacks, the
motion controllers must be powered on
simultaneously.
High base temperature
Abnormal heat loads.
Accounting for wiring and encoder heat loads,
consider the following:
•
The wiring going through the thermal clamp.
o
Is it well lagged?
o
Is the clamp tight or too loose?
o
Are the wires spready out as much as
possible to all for optimal thermalization
of each wire?
•
Is adaption plate secured to the cold platform
and torqued to 8 in-lbs.?
