Appendix A
Specifications
7344/7334 Hardware User Manual
A-4
ni.com
Min pulse width...............................1 ms
Control.............................................Individual enable/disable, stop on
input, prevent motion, Find Home
Trigger inputs
Number of inputs.............................4 (Encoders 1 through 4)
Voltage range...................................0 to 12 V
Input low voltage......................0.8 V
Input high voltage.....................2 V
Polarity ............................................Programmable, active-high
or active-low
Min pulse width...............................83 ns
Capture latency................................<100 ns
Capture accuracy .............................1 count
Max repetitive capture rate ..............1 kHz
Breakpoint outputs
Number of outputs...........................4 (Encoders 1 through 4)
Voltage range...................................0 to 5 V
Output low voltage ...................< 0.6 V at 64 mA sink
Output high voltage ..................Open collector with built-in
3.3 k
Ω
pull-up to +5 V
Polarity ............................................Programmable, active-high
or active-low
Inhibit/enable output
Number of outputs...........................4 (1 per-axis)
Voltage range...................................0 to 5 V
Output low voltage ...................< 0.6 V at 64 mA sink
Output high voltage ..................Open collector with built-in
3.3 k
Ω
pull-up to +5 V
Polarity ............................................Programmable, active-high
or active-low
Control.............................................MustOn/MustOff or automatic
when axis off
