
7. INSTALLATION CONDITIONS
AND CAUTIONS
B–65192EN/02
36
The servo amplifier unit is designed for installation in the machine
magnetics cabinet with the heat sink protruding from the rear of the
cabinet so that the heat generated in the semiconductors is released
outside the cabinet to minimize the heat remaining in the cabinet. So,
observe the following items when installing the servo amplifier unit.
(1) Be careful not allow dielectric fluid, oil mist, or cutting chips to
attach to the heat sink or fan. Such foreign matter may decrease the
cooling effeciency and prevent the normal operation of the servo
amplifier unit.
In addition, the life of the semiconductors in the amplifier may be
adversely affected. If the machine magnetics cabinet is designed to
take in outside air, use an air filter at the air inlet. Also seal the cable
access holes and door of the cabinet securely.
(2) Protect the main body of the servo amplifier unit from contaminants
(such
as dust, coolant, organic solvent, acid, corrosive gas, and salt) by
keeping it in a cabinet. When it is used in an environment where it may be
exposed to radiations (such as microwave, ultraviolet ray, laser beam, and
X–ray), take a necessary provision to shut out the radiations.
(3) Keep dust or dielectric fluid from entering an air outlet without
disturbing the cooling air flow.
(4) Take precautions to facilitate inspection, dismounting, and mounting
of the servo amplifier unit for maintenance.
(5) Separate the current carrying lines from the signal lines, and take
measures for noise. For details, see Section 7.3 and refer to the
appropriate CNC connection manual.
7.1.6
Cautions for
Installation