National Instruments NI 9514, Руководство пользователя

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Appendix A Specifications
Max pulse rate...........................................5 MHz
Continuous output current
on each channel.........................................±20 mA
Pulse width................................................Approximately 50% of the period, up to
6.4 μ s max
Output mode .............................................Software-selectable: step and direction, or
CW/CCW
Active state ...............................................Software-selectable: high or low
Servo command analog outputs
Voltage range ............................................±10 V, relative to Drive Command COM
Resolution .................................................16 bits (0.000305 V/LSB), monotonic
Max output current....................................±2 mA
Drive Enable output
Output type ...............................................Software-selectable: sinking or sourcing
Voltage range ............................................ 0 to 30 V
V
sup
input ..................................................19 to 30 V
Continuous output current ( I
0
)
on each channel.........................................±100 mA max
Output impedance (
R
0
)..............................0.3 Ω max
Output voltage ( V
0
) sourcing ....................V
sup
- ( I
0
R
0
)
Output voltage ( V
0
) sinking ......................I
0
R
0
Min output pulse width .............................100 μ s
Active state ...............................................Software-selectable: on or off
Motion I/O
Encoder 0 and 1 Phase A/B and Encoder 0 Index inputs
Type...........................................................RS-422 differential or single-ended inputs
Digital logic levels, single-ended
Voltage ..............................................-0.25 to 5.25 V
High, V
IH
...........................................2.0 V min
Low, V
IL
............................................0.8 V max
Digital logic levels, differential (Phase(+) - Phase(-))
Input high range ................................300 mV to 5 V
Input low range .................................-300 mV to -5 V
Common-mode voltage
1 ...................-7 to 12 V
Input current at 5 V...................................±1 mA
1
Common-mode voltage is the average of Phase+ and Phase-.