Delta ASDA-A3 Series User Manual page 32

ASDA-A3
Heat dissipation requirements
In order to have adequate air flow for ventilation, follow the suggested clearances when installing
one or more servo drives (refer to the following diagrams). Avoid mounting one servo drive above
one another. Keep the bottom of the servo drive clear because the generated heat rises and
causes higher temperature for the drives mounted above.
Note: the diagrams below are not accurately scaled. Refer to the annotations on the diagrams.
One servo drive
Servo drive model
ASD-A3-0121-
ASD-A3-0221-
ASD-A3-0421-
ASD-A3-0721-
ASD-A3-1021-
ASD-A3-1521-
ASD-A3-2023-
ASD-A3-3023-
ASD-A3-4523-
ASD-A3-5523-
ASD-A3-7523-
ASD-A3-1B23-
ASD-A3-1F23-
Note: the maximum operating temperature for the models of 750 W (or above) is up to 60°C (140°F), but the
output current declines; the maximum operating temperature for the models of 400 W (or below) is only up
to 55°C (131°F).
Cooling method
*Considering the assembly tolerances, the servo drive requires
Natural cooling
Natural cooling
plus forced cooling
Multiple servo drives
Minimum distance (d) corresponding
to the operating temperature (Ta)
a minimum clearance of 1 mm
Installation
2
2-5