Omron OMNUC 88D-UP20HA, Руководство пользователя

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2-16
2-1-2 Installation Conditions
H
AC Servo Drivers
D
Space Around Drivers
•
Install Servo Drivers according to the dimensions shown in the following illustration to ensure proper
heat dispersion and convection inside the panel. Also install a fan for circulation if Servo Drivers are
installed side by side to prevent uneven temperatures from developing inside the panel.
•
Mount the Servo Drivers vertically (so that the model number and writing can be read).
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50 mm min.
50 mm min.
W W
30 mm min.
Fan Fan
Servo Driver
W = 10 mm min.
Side of Unit
Servo Driver Servo Driver
D
Operating Environment
Be sure that the environment in which Servo Drivers are operated meets the following conditions.
•
Ambient operating temperature: 0
°
C to +55
°
C
•
Ambient operating humidity: 35% to 85% (RH, with no condensation)
•
Atmosphere: No corrosive gases.
D
Ambient Temperature
•
Servo Drivers should be operated in environments in which there is minimal temperature rise to
maintain a high level of reliability.
•
Temperature rise in any Unit installed in a closed space, such as a control box, will cause the ambient
temperature to rise inside the entire closed space. Use a fan or a air conditioner to prevent the ambi-
ent temperature of the Servo Driver from exceeding 55
°
C.
•
Unit surface temperatures may rise to as much as 30
°
C above the ambient temperature. Use heat-
resistant materials for wiring, and keep separate any devices or wiring that are sensitive to heat.
•
The service life of a Servo Driver is largely determined by the temperature around the internal elec-
trolytic capacitors. The service life of an electrolytic capacitor is affected by a drop in electrolytic vol-
ume and an increase in internal resistance, which can result in overvoltage alarms, malfunctioning
due to noise, and damage to individual elements. If a Servo Driver is always operated at the maxi-
mum ambient temperature of 55
°
C, then a service life of approximately 50,000 hours can be ex-
pected. A drop of 10
°
C in the ambient temperature will double the expected service life.
System Design and Installation
Chapter 2