3-4
•
The service life of a Servo Driver is largely determined by the temperature around the internal elec-
trolytic capacitors. The service life of an electrolytic capacitor is affected by a drop in electrolytic vol-
ume and an increase in internal resistance, which can result in overvoltage alarms, malfunctioning
due to noise, and damage to individual elements. If a Servo Driver is always operated at the maxi-
mum ambient temperature of 40
°
C and at 80% of the rated torque, then a service life of approxi-
mately 50,000 hours can be expected. A drop of 10
°
C in the ambient temperature will double the
expected service life.
H
Keeping Foreign Objects Out of Units
•
Place a cover over the Units or take other preventative measures to prevent foreign objects, such as
drill filings, from getting into the Units during installation. Be sure to remove the cover after installa-
tion is complete. If the cover is left on during operation, heat buildup may damage the Units.
•
Take measures during installation and operation to prevent foreign objects such as metal particles,
oil, machining oil, dust, or water from getting inside of Servo Drivers.
3-1-2 Servomotors
H
Operating Environment
The environment in which the Servomotor is operated must meet the following conditions.
•
Ambient operating temperature:
0 to +40
°
C
•
Ambient operating humidity:
20% to 80% (with no condensation)
•
Atmosphere:
No corrosive gases.
H
Impact and Load
•
The Servomotor is resistant to impacts of up to
490 m/s
2
. Do not subject it to heavy impacts or loads
during transport, installation, or removal. When
transporting it, hold onto the Servomotor itself, and
do not hold onto the encoder, cable, or connector
areas. Holding onto weaker areas such as these can
damage the Servomotor.
•
Always use a pulley remover to remove pulleys,
couplings, or other objects from the shaft.
•
Secure cables so that there is no impact or load placed on the cable connector areas.
System Design and Installation
Chapter 3
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