MPC-385 SERIES OPERATION MANUAL – REV. 3.21K (20201120)
5.6 Microsteps and Microns (Micrometers)
All coordinates sent to and received from the controller are in microsteps. To convert
between microsteps and microns (micrometers), use the following conversion factors
(multipliers):
Table 5-2. Microns/microsteps conversion factors (multipliers).
MP-285/M *
micromanipulator
* Same applies to MP-225/M & MP-265/M micromanipulators, 3DMS/M & MPC-x8-series stages, and
MOM & SOM microscope objective movers. Other devices:
MP-x45[S]/M series micromanipulator
(µstepsµm 0.046875; µmµsteps 21.333333333);
MT-8x0 (MT-22xx) series translator
(µstepsµm 0.078125; µmµsteps 12.8 µsteps)
For accuracy in your application, type these conversion factors as “double” (avoid using the
“float” type as it lacks precision with large values). When converting to microsteps, type the
result as a 32-bit “unsigned long” (C/C++), “uint32” (MATLAB), or “U32” (LabVIEW)
integer (positive only) value. When converting to microns, type the result as a “double”
(C/C++, MATLAB) or “DBL” (LabVIEW) 64-bit double-precision floating-point value.
Table 5-3. Travel distances and bounds.
* Same applies to MP-225/M & MP-x45[S]/M-series micromanipulators, 3DMS/M series stages, and
SOM objective mover.
Other devices:
•
TRIO MP-x45/M series micromanipulator and MPC-x8 series stages: 25mm (533,333
microsteps) for X, Y, & Z. (Requires firmware v3.19+.)
•
TRIO MP-865/M micromanipulator: 50mm for X, 12.5mm for Y, and 25mm for Z. (Requires
firmware v3.21+.)
•
MP-265/M micromanipulator: 25mm for X & Z, 12.5mm for Y. (Discontinued product –
replaced by TRIO MP-865/M.)
•
MT-8x0 (MT-22xx) series translator: 22mm in all three axes. Only X & Y are connected to a
motor (Z can be optionally connected to a motor of another device (e.g., a focus drive)).
•
MOM objective mover (firmware v3.13 or 3.16, and device Port A only): 21.5mm in all three
axes.
5.7 Travel Speed
The following table shows the travel speeds for single-, double-, and triple-axis movements
for supported devices using orthogonal move commands.