
2.SPECIFICATIONS B-65282EN/05
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2.2 ENVIRONMENTAL CONDITIONS
The servo amplifier αi series must be installed in a sealed type
cabinet to satisfy the following environmental requirements:
(1) Ambient Temperature
Ambient temperature of the unit :
0 to 55°C (at operation)
-20 to 60°C (at keeping and transportation)
Ambient temperature outside of the cabinet : 0 to 45°C
(2) Humidity
Normally 90% RH or below, and condensation-free
(3) Vibration
In operation : Below 0.5G
(4) Atmosphere
No corrosive or conductive mists or drops should deposit
directly on the electronic circuits.
NOTE
Install the electronic circuits in an environment of
contamination level 2 as defined in IEC 60664-1. To
achieve contamination level 2 in a severe
environment where machine tools are used,
electronic circuits generally need to be installed in a
cabinet complying with IP54.
(5) Notes on Installation
The αi series servo amplifier is designed to be installed in the
power magnetics cabinet, with its heat sink projecting through
the back of the cabinet. This carries away the heat generated by
the semi- conductors, thus preventing heat from building up in
the cabinet as much as possible. Therefore, note the following
when installing the amplifier.
(a) The heat sink must not be subjected to cutting fluid, oil mist,
or cutting chips. Otherwise, the cooling efficiency will be
reduced so that the characteristics of the amplifier cannot
be guaranteed. This may also shorten the life of the
semiconductors. When installing the amplifier in a power
magnetics cabinet which is designed to draw in air, fit an
air filter to the air inlet. In addition, completely seal all
cable holes and doors.
(b) No dust or cutting fluid must be able to enter through the
exhaust port. The flow of cooling air must not be
obstructed.
(c) The amplifier must be installed where it can be easily
inspected, removed, and remounted for maintenance.