8|ni.com |NI 9516 Operating Instructions and Specifications
System Connection
The NI 9516 has two connectors, a 15-pin DSUB drive interface
connector and a 20-pin MDR feedback connector. The 15-pin
DSUB includes command signals for interfacing with servo
amplifiers or drives, a 0 to 30 V general-purpose digital input line,
and a 19 to 30 V input for power connection. Refer to Table 1 for
the DSUB connector pin assignments.
Note The remainder of this document does not
distinguish between drives and amplifiers. All
references to drives also apply to amplifiers.
The 20-pin MDR connector includes dual incremental encoder
feedback inputs, a +5 V output for encoder power, home, limit, and
position compare inputs, an output for position compare, an
additional 19 to 30 V input for power connection, and an additional
0 to 30 V general-purpose digital input line. Refer to Figure 2 for
the MDR connector pin assignments.
Note The NI 9516 requires an external power supply.
You can connect the external power supply to the Vsup
input provided on the DSUB or MDR connector. Do not
connect more than one external power supply to the
module.
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