Appendix B
Position Command Connections
©
National Instruments Corporation
B-3
NI 951x User Manual
Note
For operation the NI 9512 requires an external power supply. You can connect the
external power supply to the V
sup
input provided on the DSUB or MDR connector. Do not
connect more than one external power supply to the module.
3.
Map the additional position command drive signals as described in the
Position Command Drive Signals
section of this appendix.
Position Command Drive Signals
This section describes additional signals that are used with position
command drives. You can use these signals with your drive if you map the
signal functionality to an available digital input or digital output using
software. Refer to the
NI SoftMotion Module
book of the
LabVIEW Help
for more information about mapping digital inputs and digital outputs.
Refer to Chapter 3,
Signal Connections
, for information about other
NI 9512 module signals.
The following inputs are driven from the drive to provide system status to
the module.
•
Servo Alarm/Drive Fault
— Disables the drive in case of a drive error.
The module does not generate step and direction outputs when the
alarm input is active. The alarm signal is inactive during normal
operation.
•
In-Position
—Indicates that the drive has completed the move and has
reached the target position.
•
Servo Ready/Drive Ready
—Indicates that the drive is ready or
enabled.
The following signal is driven from the module to the position command
drive:
•
Alarm Clear
—Clears the alarm or fault outputs on the drive.
Note
The Alarm Clear functionality is not mappable in software. Refer to the
NI SoftMotion LabVIEW Help
for information about implementing this functionality
using an available digital output.