Rockwell Automation FlexPak 3000 DC Drive Version 4.3 - Manual (Page 23)

Install and Wire the Drive 2-9
2.4 Install the Motor
Step 1. Verify that the motor is the appropriate rating to use with the drive.
Step 2. Install the DC motor in accordance with its installation instructions.
Step 3. Make sure that coupled applications have proper shaft alignment with the
driven machine or that belted applications have proper sheave/belt alignment
to minimize unnecessary motor loading.
Step 4. If the motor is accessible while it is running, install a protective guard around
all exposed rotating parts.
Step 5. Wire the motor to the drive. Refer to section 2.6.4, “Wire the DC Motor to the
Drive.”
2.5 General Wiring Practices
The drive is designed for AC power entry and DC power exiting at the top and control
and signal wiring entering from the bottom.
Reference signal wiring should be run in a separate conduit isolated from all AC and
DC power and control. Signal wires should not be run in parallel with high voltage or
electrically noisy conductors. Always cross such conductors at 90
°
. All reference
signals should be wired with either twisted double or twisted triple conductor wire, 2
twists per inch, stranded copper, AWG No. 16, 600 VAC rated, poly-vinyl chloride
insulation, with a temperature range of 40
°
C to 105
°
C (104
°
F to 221
°
F).
Tachometer feedback and other signal wiring should be run in a separate conduit
isolated from all AC and DC power and logic control. Wiring should be the same as for
the reference signals. For mounting with external contacts and solenoids, coils should
be suppressed to reduce noise.
Important: The maximum recommended wire length from the drive to the motor is
1000 feet.
2.5.1 Ground the Drive and Enclosure, the Motor and the Operator's
Control Station
You must ground both the control and power wiring.
Step 1. Locate the drive ground points as shown in figures 2.8 through 2.13.
Step 2. Run a suitable equipment grounding conductor unbroken from any drive
ground point (see step 1) to the plant ground (grounding electrode). A ring
lug is recommended at the ground point.
Step 3. Connect a suitable grounding conductor from each conduit to this drive
ground point.
!
ATTENTION:The user is responsible for conforming to the National
Electric Code (NEC/CEC) and all other applicable local codes. Wiring
practices, grounding, disconnects, and overcurrent protection are of
particular importance. Size and install all wiring in conformance with the
NEC/CEC and all other applicable codes. Failure to observe this
precaution could result in severe bodily injury or loss of life.