Chapter 2
2-31
Standard Models and Specifications
2-4 Servomotor Specifications
■ SMARTSTEP A-series Servomotors (R7M-A@)
There are two kinds of SMARTSTEP A-series Servomotor:
• 3,000-r/min Cylinder-style Servomotors
• 3,000-r/min Flat-style Servomotors
These Servomotors also have optional specifications, such as
the shaft type, brake, etc. Select the appropriate Servomotor
for your system according to the load conditions and installa-
tion environment.
2-4-1 General Specifications
Note 1. Vibration may be amplified due to sympathetic resonance of machinery, so use the Servo-
motor Driver under conditions that will not exceed 80% of the specification values over a
long period of time.
Note 2. The above items reflect individual evaluation testing. The results may differ under compound
conditions.
Note 3. The Servomotors cannot be used in misty environments.
Item Specification
Ambient operating temperature 0 to 40
°C
Ambient operating humidity 20% to 80% (with no condensation)
Storage ambient temperature –20 to 60
°C
Ambient storage temperature 20% to 80% (with no condensation)
Storage and operating atmo-
sphere
No corrosive gasses.
Vibration resistance
(See note 1.)
10 to 2,500 Hz, 0.2-mm double amplitude or 24.5 m/s
2
max. acceleration,
whichever is smallest, in X, Y, and Z directions.
Impact resistance
Acceleration 98 m/s
2
max., in X, Y, and Z directions, two times
Insulation resistance Between power line terminals and FG: 10 M
Ω min. (via 500-V DC Megger
Tes t er)
Dielectric strength Between power line terminals and FG: 1,500 V AC for 1 min at 50/60 Hz
Run position All directions
Insulation grade Type B
Structure Totally-enclosed self-cooling
Protective structure IP55 (Excluding through-shaft portion)
Vibration grade V-15
Mounting method Flange-mounting
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