user manual

© National Instruments Corporation A-1 NI 7350 User Manual
A
Specifications
This appendix lists the hardware and software performance specifications
for the PXI/PCI-7350 controller. Hardware specifications are typical at
25 °C, unless otherwise stated.
Servo Performance
PID update rate range............................. 62.5µs/sample to 5 ms/sample
Max PID update rate ....................... 62.5 µs per 2 axes
8-axis PID update rate..................... 250 µs total
Trajectory update rate ............................ Same as PID update rate
Multi-axis synchronization .................... <1 update sample
Position accuracy
Encoder feedback............................ ±1 quadrature count
Analog feedback ............................. ±1 LSB
Double-buffered trajectory parameters
Absolute position range .................. ±2
31
counts
Max relative move size ................... ±2
31
counts
Velocity range................................. 1 to ±20,000,000 counts/s
RPM range
1
..................................... ±1,200,000 revolutions/min
Acceleration/deceleration
2
.............. 244 to 512,000,000 counts/s
2
at a PID update rate of 250 µs
RPS/s range
1
................................... ±256,000 revolutions/s
2
S-Curve time range ......................... 1 to 32,767 samples
Following error range ..................... 0 to 32,767 counts
Gear ratio ........................................ ±32,767:1 to ±1:32,767
1
Assumes a 2,000-count encoder.
2
Refer to the NI-Motion User Manual for more information.