User manual

7 Installation
−21−
7 Installation
This chapter explains the installation location of the driver, installation method, and how to install the
regeneration resistor unit.
Also covered in this section are the installation and wiring methods that are in compliance with the relevant
EMC Directive.
7.1 Location for installation
The motor and driver are designed and manufactured for installation in equipment.
Install them in a well-ventilated location that provides easy access for inspection. The location must also
satisfy the following conditions:
• Inside an enclosure that is installed indoors (provide vent holes)
• Operating ambient temperature
Motor: 0 to +40 °C (+32 to +104 °F) (non-freezing)
Driver: 0 to +50 °C (+32 to +122 °F) (non-freezing)
• Operating ambient humidity 85% or less (non-condensing)
• Operating surrounding atmosphere
Motor: Area that is free of explosive atmosphere or toxic gas (such as sulfuric gas)
Area not subject to oil (oil droplets)
Driver: Area that is free of explosive atmosphere or toxic gas (such as sulfuric gas) or liquid
Area not subject to splashing water (rain, water droplets), oil (oil droplets) or other liquids
• Area not exposed to direct sun
• Area free of excessive amount of dust, iron particles or the like
• Area free of excessive salt
• Area not subject to continuous vibration or excessive shocks
• Area free of excessive electromagnetic noise (from welders, power machinery, etc.)
• Area free of radioactive materials, magnetic fields or vacuum
• Up to 1000 m (3300 ft.) above sea level
7.2 Installing the motor

Installation direction
The motor can be installed in any direction. There is an exception, however, in humid places, areas subject to
mist and other environments where water accumulates easily. In such environments, the motor should be
installed in the direction whereby the motor cable extends downward.

Installation method
To allow for prevent vibration, install the motor on a metal surface of sufficient strength. Install the motor in a
location where heat dissipation capacity equivalent to a level achieved with a heat sink (made of aluminum) is
ensured. Refer to the table below for the heak sink.
Motor model Heat sink size [mm (in.)]
NXM45, NXM410, NXM620, NXM65-PS, NXM610-PS,
NXM920-PS, NXM810-J, NXM820-J
250×250×6 (9.84×9.84×0.24)
NXM640, NXM940-PS, NXM1040-J 300×300×10 (11.81×11.81×0.39)
NXM975, NXM1075-J 350×350×10 (13.78×13.78×0.39)
∗  within the model name represents the gear ratio.