Harmonic Drive MMA Series, Manual, Page: 17 / 62

1-4 Specifications
1-6
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es
1
Appe
Environmental conditions
*6
Operating temperature: 0 to 40
℃
/Storage temperature: -20 to 60
℃
Service/storage humidity: 20 to 80 % RH (no condensation)
Resistance to vibration: 25 m/s
2
(frequency: 10 to 400 Hz)
Resistance to impact: 300 m/s
2 *5
No dust, metal powder, corrosive gas, inflammable gas, or oil mist.
To be used indoors, no direct sunlight.
Altitude: less than 1000 m above sea level
Motor insulation
Insulation resistance: 100 MΩ or more (500 VDC insulation tester)
Dielectric strength: 1500 VAC/1 min
Insulation class: A
Mounting direction Can be installed in any direction.
Protection structure Totally enclosed self-cooled type (IP54)
The table above shows the typical values.
*1: This displays representative characteristics for when combined with a dedicated amplifier (driven using an ideal
sine wave).
*2: Values after the temperature has risen and saturated when installed on the following aluminum radiation plates.
MMAB09 : 350×350×18 [mm]
MMAB12 : 400×400×20 [mm]
MMAB15 : 500×500×25 [mm]
MMAA21A : 650×650×30 [mm]
*3: Value of the phase-induced voltage constant multiplied by 3.
*4: The multi-turn detector range is -32768 to 32767.
*5: For testing conditions, refer to [1-10 Shock resistance] (P1-15) and [1-11 Resistance to vibration] (P1-16).
Motor operation is not guaranteed in applications where vibrations and impacts are continuously applied for a
long period of time.
*6: For details, refer to [3-3 Location and installation] (P3-5).