YASKAWA SGM Series User Manual page 130

D Free from corrosive or explosive gases
D Well-ventilated and free from dust and moisture
D Ambient temperature of 0 to 40°C
D Sufficient access for each inspection and cleaning
If the Servomotor is used in a location subject to water or oil mist, install a shield or cover over
the Servomotor.
J Environment Condition
Use the Servomotor in the following environment.
D Temperature range: −20°C to 40°C
D Relative humidity of 20% to 80% (with no condensation)
D Storage temperature: −20°C to 60°C
J Alignment
Align the shaft of the Servomotor with that of the equipment to be controlled. When connecting
couplings, be careful not to apply any impact to the shaft or excessive force on bearings. Install
the Servomotor so that alignment accuracy falls within the range shown below. If the shafts are
not aligned properly, vibration will occur, resulting in damage to bearings.
Measure this distance at four different positions on the circumference. The
difference between the maximum and minimum measurements must be
0.03 mm (0.0012 in) or less. (Turn together with couplings.)
Measure this distance at four different positions on the
circumference. The difference between the maximum and minimum
measurements must be 0.03 mm (0.0012 in) or less. (Turn together
with couplings.)
J Allowable Bearing Load
Do not apply any excessive thrust load or radial load to the AC Servomotor. When installing
gears, couplings, pulleys, etc., be careful not to apply any impact to the shaft or excessive force
on bearings. Mechanical shock to the shaft end must be less than 490m/s
Design the mechanical system so that thrust load and radial load applied to the servomotor shaft
end during operation falls within the range shown in Table 3.1.
8 -3
8.2 Installation
8
2
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