Yaskawa i80M Connecting Manual - Manual (Page 14)

5 PRECAUTIONS FOR INSTALLING SERVO UNIT
(1) The servo unit is a wall-mounted type and should be secured with screws or bolts vertically
(so that the printed circuit boards can be seen from the front). (See Fig. 5.1. )
(2) Mount the servo unit so as to allow easy checking, removal and reinstalling during mainte-
nance work.
The servo unit generates some amount of heat. Allow for some space in the upper and
lower sides when mounting other units and components so that heat will not saturate the in-
side the unit. (See Fig. 5.2. )
(4) Expose the radiator fin outside the cabinet and allow the outside air to blow on it to reduce
internal thermal loss. (See Fig. 5.1. ) This will help reduce the capacity of the heat exchanger
even when it is required.
(5) When circulating air inside the cabinet, do not allow forced air to blow directly on the servo
unit (to prevent dust from collecting on the unit).
(6) The regenerative resistor generates heat. Full precautions should be given to location of
the regenerative resistor and do not place it near components easily affected by heat be-
cause a high temperature develops with extremely high frequency in use such as rapid trans-
verse, start and stop.
Clamp the detector (P. G) cable that enters the servo unit to the ground plate inside the
cabinet with the cable clamping fixtures. (See Clamping Cables and Grounding Cable Shield
described in Par. 6.2. ) Make sure to clamp the cable because it is necessary to operate the
system properly and to protect it from malfunctioning due to noise
From ,
/
Fig. 5.2 Mounting of Servo Unit
(Front View)
Fig. 5.1 Mounting of
(Side View)
1 4