Rockwell Automation DC3RD Digital Regenerative DC Drive User Guide 1/4 - 2 HP, 115/230 VAC - Manual (Page 15)

Mounting
NEMA 4X enclosed drives come with three 0.88 inch (22
mm) conduit knockout holes at the bottom of the case. The
units may be vertically wall mounted using the four 0.25
inch (6 mm) slotted holes on the attached heat sink. For
motor loads less than 5 ADC, the drive may be bench
mounted horizontally, or operated without mounting.
1. Install the mounting screws.
2. For access to the terminal strip, turn the slotted screw on
the front cover counterclockwise until it is free from the
case. The right side of the cover is hinged to the case.
Lift or pull the slotted screw to open the case.
3. Carefully remove the conduit knockouts by tapping them
into the case and twisting them off with pliers.
4. Install conduit hardware through the 0.88 inch (22 mm)
conduit holes. Connect external wiring to the terminal
block.
5. Grasp the slotted screw and tilt the front cover back into
place. Avoid pinching any wires between the front cover
and the case.
6. Turn the slotted screw clockwise until tight to secure the
front cover.
7. Set the POWER switch to the OFF position before
applying the AC line voltage.
7 Installation
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