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MID-7604/7602 Power Drive 12 ni.com
Microstepping Selection
The MID-7604/7602 uses bipolar chopper, two-phase microstepping
drivers with a broad range of microstep rates. The factory default setting
is 10-times microstepping (2,000 steps/rev with standard 1.8º stepper
motors). Table 2 shows the DIP switch settings for all possible microstep
settings. DIP switches 6 through 9 control the microstep rate on a per-axis
basis.
Table 2. Microstep Rate DIP Switch Setting
Binary Selections Decimal Selections
Switch Microsteps/Step Switch Microsteps/Step
2 (half step) 5
4 10
(factory default)
8 25
16 50
32 125
64 250
128 Do not use
256 Do not use
6
O
N
789 6
O
N
789
6
O
N
789
6
O
N
789
6
O
N
789 6
O
N
789
6
O
N
789 6
O
N
789
6
O
N
789 6
O
N
789
6
O
N
789
6
O
N
789
6
O
N
789
6
O
N
789
6
O
N
789
6
O
N
789