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Controlling the Output Resolution

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 revolution

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.

ON Position

This Side

Figure 7.4: MSEL Switch Showing 50 Microsteps/Step Selected

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 76 77

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Projecta IM2000 Istruzioni per gli Interventi Pagina 41