2-86
ing is occurring at low temperatures, and how much the load torque is. Likewise, check to see
whether there abnormal Servomotor overheating or alarms are occurring at high temperatures.
•
An increase in load friction torque visibly increases load inertia. Therefore, even if the Servo Driver
parameters are adjusted at a normal temperature, there may not be optimal operation at low temper-
atures. Check to see whether there is optimal operation at low temperatures too.
Caution
Do not use 2-kW or 5-kW Servomotors within the shaded portions of the following diagrams.
If used in these regions, the Servomotor may heat, causing the encoder to malfunction.
Effective
torque
(N.m)
Effective
torque
(N.m)
Ambient temperature (
_
C)
Ambient temperature (
_
C)
R88M-W2K030
j
(2 kW)
R88M-W5K030
j
(5 kW)
Standard Models and Specifications
Chapter 2
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