MECHANICAL INSTALLATION 
    ACR7000 Controller Controller Installation Guide  13 
Environment & Drive Cooling  
The ACR7000 Controllers operate in an ambient temperature range of 0°C (32°F) to 50°C (120°F) ambient air 
temperature. The product can tolerate atmospheric pollution degree 2. Only dry, non-conductive pollution is 
acceptable. Therefore, it is recommended that the product be mounted in a suitable enclosure. 
For proper cooling, the ACR7000 must be installed so that the cooling vents allow for vertical air flow. Figure 3 on 
page 17 shows the mounting orientation, as well as the minimum top, bottom, and side installation clearances. 
NOTES:  
  Avoid installing heat-producing equipment directly below a controller. 
  Make sure the ambient air temperature entering the controller or rising to the 
controller is within acceptable ambient temperature limits. Under normal use, the 
temperature of air leaving the controller and heat sink may be 25°C (45°F) above 
ambient temperature. 
  After installation, verify that the ambient air temperature directly below the top-
most controller does not exceed the maximum Ambient Air Operating 
Temperature shown below. In addition, make sure that nothing obstructs the 
circulating airflow. 
 
Environmental Specifications 
Operating 
Temperature 
Maximum 50°C (120°F) 
Ambient Air 
Minimum 0°C (32°F) 
Storage Temperature 
–40°C to 85°C (–40°F to 185°F) 
Humidity 
0 to 95%, non-condensing 
Shock 
15g, 11 ms half-sine 
Vibration 
10 to 2000 Hz at 2g 
Pollution Degree 
2 (per IEC 61010) 
Installation Category 
2 (per IEC 61010)