4 System Design
4 - 2
OMNUC G5-series (Pulse-train Input Type) AC Servomotors and Servo Drives User’s Manual
4-1 Installation Conditions
• Install the Servo Drives according to the dimensions shown in the following illustration to ensure
proper dispersion of heat from inside the drives and convection inside the panel. If the drives are
installed side by side, install a fan for air circulation to prevent uneven temperatures inside the panel.
• If the mounting surface of the Servo Drive is coated, remove the coating to allow electrical
conduction. If you make your own mounting bracket, we recommend that you apply electrically
conductive plating.
• Mount the Servo Drive perpendicular on the panel so that the model number reads normally.
 Operating Environment Conditions
• The environment in which drives are operated must meet the following conditions. Drives may
malfunction if operated under any other conditions.
Operating ambient temperature: 0 to 50°C (Take into account that the temperature rises in the
following individual drives themselves.)
Operating ambient humidity: 90% max. (with no condensation)
Operating ambient atmosphere: No corrosive gases.
Altitude: 1,000 m max.
• Drives of 200 V with a capacity of 750 W max. can be installed side by side with a 1 mm clearance
(W in above illustration). The ambient temperature condition depends on the Servo Drive A, B, or
C.
4-1-1 Servo Drive Installation Conditions
Space Conditions around Servo Drives
Mounting Direction
Servo Drive A: 0 to 50°C
Servo Drive B: 0 to 40°C
Servo Drive C: 0 to 45°C
WW
Side
of
Servo
Drive
ABC
Servo
Drive
Servo
Drive
Servo
Drive
40 mm min.
100 mm min.
Air
Air
Fan Fan
W = 10 mm min.
100 mm min.
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