Chapter 1. Description of Hybrid Servo Drives I VFD-VJ
1-10
Space for Installation
Single Drive Installation: Multiple Drives: Side by Side Horizontal Installation
H
H
W
W
H
H
W
W
H
H
W
W
HP
W
mm (inch)
H
mm (inch)
7.5-20HP 75 (3) 175 (7)
25-75HP 75 (3) 200 (8)
100HP 75 (3) 250 (10)
1) Mount the hybrid servo drive vertically on a solid surface object by screws. Other directions are not
allowed.
2) Because the hybrid servo drive generates heat during operation, there should be enough space for
cooling airflow as shown in the figure above. Leave enough room for heat dissipation when installing.
Do not install the drive beneath equipment that is not heat-resistant because the generated heat move
upwards. If the drive can only be installed in a cabinet, its ambient temperature should be within
regulated values. Installing the drive in a confined and insufficient cooling space would make it
malfunctioned.
3) The temperature of heat sink in the drive varies with environmental temperature and its load capacity
during its operation, reaching nearly the highest temperature of 90°C. Therefore, the material of the
drive's backside should be able to bear such a high temperature.
4) If more than one drive are installed in one cabinet, it is recommended to install them horizontally and
side by side to reduce heat generated from each other. If they can only be installed up and down, spacer
plates should be put between them to decrease heat generated from lower side to upper side.
5) For information about air conditioning layout, please refer to the heat dissipation of hybrid servo drive (W)
table below.
NOTE
Prevent substances like fiber particles, scraps of paper, sawdust, metal particles, and so on from
entering the hybrid servo drive. The hybrid servo drive should be installed in the cabinet made from
non-combustible material such as metal to prevent from fire accident.
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