Harmonic Drive MMA Series, Manual, Page: 46 / 62

3-3 Location and installation
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3-3 Location and installation
Environment of location
The environmental conditions of the installation location for MMA series motors are as follows. Always
observe these conditions to determine an appropriate installation location.
◆
Operating temperature: 0 to 40
℃
The temperature in the cabinet may be higher than the atmosphere depending on
the power loss of housed devices and size of the cabinet. Plan the cabinet size,
cooling system, and device locations so the ambient temperature of the motor is
kept 40
℃
or below.
◆
Operating humidity: Relative humidity of 20 to 80 %. Make sure no condensation occurs.
Take note that condensation is likely to occur in a place where there is a large
temperature change between day and night or when the motor is started/stopped
frequently.
◆
Vibration: 25 m/s
2
(10 to 400 Hz) or less (Refer to [1-11 Resistance to vibration] (P1-16))
◆
Impact: 300 m/s
2
or less (Refer to [1-10 Shock resistance] (P1-15))
◆
Use environment: Free from condensation, metal powder, corrosive gases, water, oil mist, flammable
gases, etc.
◆
Protection class: Standard products are structurally designed to meet the
IP-54 requirements.
However, rotating and sliding areas (oil seal areas, all models) and connectors (MMAB09,
MMAB12, MMAB15) are not IP-54-compliant. Also, when an MMAA21A encoder connector
converter cable is used, the motor side is warrantied as installed, but this does not apply to the
connector on the servo amplifier side. Connectors of MMAA21A motor are warrantied as
installed.
◆
Use the motor indoors or within an enclosure. Do not expose it to direct sunlight.
◆
Altitude: less than 1000 m above sea level
The protection class against contact and entry of foreign
matter is as follows:
5: Protected against entry of dust/dirt. Entry of foreign matter
caused by incomplete protection must not affect the
operation of the system.
The protection class against water entry is as follows:
4: Protected against water splashed from all directions.