NI 9512 Operating Instructions and Specifications
22
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Specifications
The following specifications are typical for the range –40 to 70 °C
u
nless otherwise noted. All voltages are relative to COM
u
nless
otherwise noted.
Stepper Performance
Stepper acc
u
racy ............................... 1 f
u
ll, half, or microstep
Interpolation/spline rate .................... 20 kHz max
Motion Command Signals
Stepper o
u
tp
u
ts
O
u
tp
u
t type ................................. Programmable: single-ended
or differential
Digital logic levels, single-ended
High, V
OH
................................... 5.25 V max
So
u
rcing 20 mA ................... 3.5 V min
So
u
rcing 12 mA ................... 3.7 V min
So
u
rcing 4 mA ..................... 3.9 V min
Low, V
OL
Sinking 20 mA ..................... 0.9 V max
Sinking 12 mA ..................... 0.7 V max