NI PCI-7390, Руководство пользователя

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© National Instruments Corporation A-1 NI PCI-7390 User Manual
A
Specifications
This appendix lists the hardware and software performance specifications
for the NI PCI-7390. All specifications are subject to change without
notice. Visit
ni.com/manuals
for the most current specifications.
Hardware specifications are typical at 25 °C unless otherwise stated.
Stepper Performance
Trajectory update rate range .................. 62.5 to 500
µ
s
Maximum update rate ..................... 62.5
µ
s/axis
4-axis update rate ............................ 250
µ
s total
Multi-axis synchronization .................... < 1 update period
Position accuracy
Open-loop stepper........................... 1 full, half, or microstep
Encoder feedback............................ ±1 quadrature count
Double-buffered trajectory parameters
Position range ................................. ±2
31
steps
Maximum relative move size.......... ±2
31
steps
Velocity range................................. 1 to 4,000,000 steps/s
RPM range ...................................... 10
–5
to 10
6
revolutions/minute
Acceleration/deceleration ............... 4,000 to 128,000,000 steps/s
2
RPS/s range..................................... 10
–1
to 10
8
revolutions/s
2
S-curve time range .......................... 1 to 32,767 samples
Following error range ..................... 1 to 32,767 counts;
off (no error checking)
Gear ratio ........................................ ±32,767:1 to ±1:32,767
Stepper outputs
Maximum pulse rate ....................... 4 MHz (full, half, and microstep)
Minimum pulse width ..................... 60 ns at 4 MHz
Step output mode ............................ Step and direction or CW/CCW