nuDrive Accessory User Guide
6
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device to National Instruments for service and repair to ensure that its safety features are
not compromised.
When connecting or disconnecting signal lines to the nuDrive terminal block screw
terminals, make sure the lines are powered off. Potential differences between the lines and
the nuDrive ground create a shock hazard while you connect the lines.
Connections, including power signals to ground and vice versa, that exceed any of the
maximum signal ratings on the nuDrive device can create a shock or fire hazard or can
damage any or all of the boards connected to the nuDrive chassis, the host computer, and
the nuDrive device. National Instruments is not liable for any damages or injuries resulting
from incorrect signal connections.
Installation and Connector Wiring
Caution
Be sure to turn off the enable switches and the main AC power to your nuDrive
and host computer before connecting to your motion controller.
Connect the motion controller to the nuDrive interface cable. Wire the
motor power, limit switch, encoder, I/O, and E-Stop terminal blocks as per
the instructions and diagrams in this manual and/or your specific system
requirements. Finally, install the power cord into the rear panel AC
connector and plug it into a correctly rated power source.
Note
For 50-pin ribbon cable interconnection, be certain that the colored indicator strip
(pin 1) on the cable between the motion controller and the 50-pin connector on the rear of
the nuDrive is properly aligned and inserted on both ends. 68- and 100-pin cables are keyed
metal-shell style.
Front Panel Switches and Host Bus Interlock Circuit
There are two lighted rocker switches on the nuDrive front panel, POWER
and ENABLE.
The POWER switch energizes the DC bus and the logic power supplies
(+5 V, +12 V), and illuminates to indicate that the main AC power is
present. If the POWER switch fails to illuminate, check the power cord and
main input fuse in the power connector.
The ENABLE switch enables or inhibits the servo amplifiers or stepper
drivers. It illuminates to indicate that it is switched on and that the logic
power 12 V output is functioning.
Summary of Contents for nuDrive 2CF-001
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