AppendixA Specifications
7344/7334Hardware User Manual A-2 ni.com
Feedforward (Aff,Vff) gains ..........0 to 32,767
Velocityfeedback (Kv) gain ...........0 to 32,767
Servo command analog outputs
Voltage range...................................±10V
Resolution........................................16 bits (0.000305 V/ LSB)
Programmable torque (velocity) limits
Positivelimit ............................±10 V (–32,768 to +32,767)
Negative limit...........................±10 V (–32,768 to +32,767)
Programmableoffset .......................±10 V (–32,768 to +32,767)
Stepper PerformanceTrajectoryu pdate raterange ...................62.5 to 500 µs/sample
Maxupdate rate...............................62.5 µs/axis
4-axis updater ate.............................250µs total
Multi-axis synchronization .....................< 1 updatesample
Position accuracy
Open-loops tepper...........................1 full, half, or microstep
Encoder feedback............................±1 quadraturecount
Analogfeedback ..............................±1 LSB
Double-buffered trajectoryparameters
Positionrange ..................................±231 steps
Maxrelative move size ....................±231 steps
Velocityrange .................................1 to 4,000,000 steps/s
RPMrange .......................................10–5to10 6revolutions/minute
Acceleration/deceleration................4,000 to 128,000,000 steps/s2
RPS/srange .....................................10–1to 108revolutions/s2
S-curve timerange ...........................1 to 32,767 samples
Followingerror range ......................0 to 32,767 counts
Gearratio .........................................±32,767:1 to 1:32,767
Stepper outputs
Maxpulse rate .................................4 MHz (full, half, and microstep)
Minpulse width ...............................120 ns at 4 MHz
Stepoutput mode .............................Step and direction or CW/CCW