The RHK Pan microscope uses the RHK PMC100 to supply the high voltage waveforms required for
coarse motion. The PMC100 has a 10-pin connector that will connect to the Pan's feedthrough plug. The
PMC100 also requires its Ext. Trigger BNC to be connected to the Digital I/O on the rear panel of the R9
Controller using the supplied cable. This is used to trigger the PMC100 to make Coarse Approach steps.
Other coarse motion performed by the PMC100 will do so by sending Ethernet commands rather than
using the Ext. Trigger BNC.
F.3.2. Check Approach and Feedback Settings
Before approaching, it is important to check the Approach and Feedback settings so the R9 Controller
and microscope behave as expected. Open the Approach Procedures Panel, it should look like the
following figure. Selecting the * to the right of the Procedure name will open that Procedure in Procedure
Space.
A quick explanation of the preloaded Approach Procedures:
• Pan Single Step In: The PMC100 will bring the probe one step closer to the sample. This is useful for
fine adjustments.
• Pan Single Step Out: The PMC100 will take the probe one step further from the sample. This is also
useful for fine adjustments.
• Pan Fast In: The Fast In Procedure is used to rapidly approach the tip to the sample. There will be no
feedback checks during the Fast In so it is important to monitor the tip-sample separation (perhaps
with a camera) while this Procedure is running.
• Pan Fast Out: The Fast Out Procedure is used to rapidly retract the tip from the sample by a
predefined number of steps.
• *PAN Approach*: This is the typical Approach Procedure to use when the probe is closer to the
sample. The tip can be pulled back between the coarse approach steps to help protect it from
accidental contact with the sample.
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