2 - 3
2. INSTALLATION
(b) Installation of two or more servo amplif iers
Leave a large clearance between the top of t he servo amplifier and the internal surface of the control
box, and install a cooling fan to prevent the internal tem perature of the control box from exceeding the
environmental conditions.
Control box
100mm
or more 10mm or more
30mm
or more
120mm or more
30mm
or more
Top
Bottom
(3) Others
When using heat generating equipment such as the r egenerative option, install them with full considerati on
of heat generation so that the servo amplif ier is not affected.
Install the servo amplifier on a perpendicular wall in the correc t vertical direction.
2.2 Keep out foreign materials
(1) When installing the unit in a control box, pr event drill chips and wire fragments from entering the servo
amplifier.
(2) Prevent oil, water, metallic dust, etc. from entering the servo amplifier through openings in the control box
or a cooling fan installed on the ceiling.
(3) When installing the control box in a place wh ere there are much toxic gas, dirt and dust, cond uct an air
purge (force clean air into the control box f rom outside to make the internal pressure higher t han the
external pressure) to prevent such materials f rom entering the control box.
2.3 Cable stress
(1) The way of clamping the cable must be fully examined so that flexing stress and cable's own weight stress
are not applied to the cable connection.
(2) For use in any application where the ser vo motor moves, fix the cables (encoder, power s upply, brake) with
having some slack from the connector connectio n part of the servo motor to avoid putting stress o n the
connector connection part. Use the optional enc oder cable within the flexing life range. Use the po wer
supply and brake wiring cables within the flexi ng life of the cables.
(3) Avoid any probability that the cable sheath m ight be cut by sharp chips, rubbed by a machin e corner or
stamped by workers or vehicles.
(4) For installation on a machine where the s ervo motor will move, the flexing radius shoul d be made as large
as possible. Refer to section 10.4 for the flexing life.