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Mechanical Installation
IMS-MN-LMDE42C_A
Liberty MDrive Ethernet TCP/IP
Heat Dissipation
If there is an incorrect arrangement of multiple motors or an improper setup, the motor may
become very hot. The surface temperature of the motor must not exceed 100 °C (212 °F) on
the surface of the motor laminations during continuous operation.
• Verify the maximum temperature is not exceeded.
• Verify there is sufficient heat dissipation by means of good ventilation or heat dissipation via
the motor flange and mounting surface.
CAUTION
HOT SURFACES
• Avoid unprotected contact with hot surfaces.
• Do not allow flammable or heat-sensitive parts in the immediate vicinity of hot surfaces.
• Verify that the heat dissipation is sufficient by performing a test run under maximum load
conditions.
Failure to follow these instructions can result in injury or equipment damage.
Mounting
The motor is designed to be mounted using four screws. The motor flange must be mounted
on a flat surface to avoid mechanical tension from being transmitted to the housing. Painted
surfaces have an insulating effect. During mounting, verify that the motor flange is mounted in
such a way as to allow for good conductivity (electrical and thermal).
Mounting screw size: M3x0.5 screw, Length dependent on mounting plate thickness. Do not
exceed the maximum available depth of 0.15 in (3.81mm).
NOTE:
Exceeding this depth will strip the threads or loosen the motor assembly screws,
damaging the motor.
Tightening torque: Tightening torque not to exceed 7.8 lb-in (9 kg-cm)
Mounting Clearance
Leave sufficient clearance around the motor body for air flow as stepper motors can become
very hot. A minimum clearance of 0.5” (12.5 mm) around the sides of the motor body is
required for adequate heat dissipation.
All LMD connections are located on the rear face of the device. Refer to the cable manufacturer
specifications to determine adequate bend radii.
Ambient Conditions
Observe the permissible ambient conditions as listed in “Environmental Conditions” on page
