Sanyo Denki Sanmotion R 3E S, Instruction Manual, Page: 378 / 514

8. Maintenance
8-45
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Cooling Fan motor

The servo amplifier is designed corresponding to the pollution degree specified in
EN61800-5-1 or IEC 664-1. It is not for dust proof or oil proof, so use it in an
environment at Pollution Level 2 or less (i.e., Pollution Level 1, 2).

RS3 series servo amplifier models RS3 02, RS3 03, RS3A05, RS3A07, RS3A10,
RS3A15 and RS3A30 have a built-in cooling fan; therefore be sure to maintain a space
of 50mm on the upper and lower side of the amplifier for airflow.
Installation in a narrow space may cause failure due to a static pressure reduction of the
cooling fan and/or electronic parts degradation. Replacement is necessary if abnormal
noise occurs or oil / dust are observed on the parts. Also, at an average temperature of
40°C year-round, the life expectancy is 5 years.
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Lithium battery for absolute encoder
 The standard replacement period recommended by our company is the life expectancy
of lithium battery based on normal usage conditions. However, if the motor is not used
for a long period, the life of lithium battery is reduced. If the battery power is less than
3.6 V during inspection, replace it with new one.