Rockwell Automation DC3N DC Drive User Guide, 1/4-2HP-115/230 VAC - Manual (Page 22)

Enclosed drive
14 Installation
Mounting (NEMA 1 enclosure)
The NEMA 1 enclosed drive comes with 0.88 inch (22 mm) conduit holes at the
bottom of the enclosure. The units may be vertically wall mounted or horizontally
bench mounted using the three keyholes on the back of the enclosure.
1. For access to the keyholes and the terminal strip, remove the two screws from
the front of the enclosure by turning them counterclockwise. Grasp the front
cover and lift it straight out.
2. Install the mounting screws in the three keyholes.
3. Install conduit hardware through the conduit holes at the bottom of the
enclosure. Connect external wiring to the terminal block.
4. Reinstall the front cover. Avoid pinching any wires between the front cover and
the enclosure.
5. Replace the two screws to the front cover. Turn the screws clockwise to tighten.
6. Set the POWER switch to the OFF position before applying the AC line voltage.
Mounting (NEMA 4X enclosure)
The NEMA 4X enclosed drive comes with two 0.88 inch
(22 mm) conduit knockout holes at the bottom of the enclosure. The units may be
vertically wall mounted using the four 0.19 inch (5 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 enclosure. The right side of the cover is
hinged to the enclosure. Pull the slotted screw to open the enclosure.
3. Carefully remove the conduit knockouts by tapping them into the enclosure and
twisting them off with pliers.
4. Install conduit hardware through the 0.88 inch (22 mm) knockout 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 enclosure.
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.