5
Installation
NEMA 1 cased drives such as the MM21111A and MM21211A
come with 0.88 inch (22 mm) conduit holes at the bottom of the
case. The units may be vertically wall mounted or horizontally
bench mounted using the three keyholes on the back of the case.
See Figures 1 and 2 (pages 2 and 3) for mounting hole locations.
1. For access to the keyholes and the terminal strip, remove the
two screws from the front of the case 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 case. Connect external wiring to the terminal
block.
4. Reinstall the front cover. Avoid pinching any wires between
the front cover and the case.
5. Replace the two screws on the front cover. urn the screws
clockwise to tighten.
6. Set the POWER switch to the OFF position before applying
AC line voltage.