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IM483 Operating Instructions Revision R032306
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IM483 Operating Instructions Revision R032306
C o n t r o l l i n g t h e O u t p u t R e s o l u t i o n
The number of microsteps per step is selected by the DIP switch (SW1).
Table 7.2 lists the standard resolution values along with the associated
switch settings for a 1.8° stepping motor.
If a motor with a different step angle is used, then the steps per revolu-
tion resolution will have to be calculated manually by multiplying the
microsteps/step setting by the number of full steps per motor revolution.
For example, a 0.45° step angle motor (800 Fullsteps/Rev) set to 16
microsteps/step will have a resolution of 12,800 steps/rev.
These settings may be switched on-the-fly. There is no need to reset or
disable the drive in order to change the output resolution. The resolution
change will occur upon the rising edge of the step clock pulse following
the change.
If remote control of the output resolution is required, these signals are
brought out on connector P1 on the IM483-34P1. This option is discussed
in detail in
Appendix A: Standard Connector Options.
NOTE! The table and example settings are for a stepper motor
with 1.8° step angle. If using a motor with a different step
angle the steps/rev resolution will vary with the step angle.
Figure 7.4: MSEL Switch Showing 50 Microsteps/Step Selected
MSEL0
MSEL1
MSEL2
MSEL3
ON
SW1
P1
