Chapter 5 mA-1302/mA-1305 Control and Operation
Configuring the Chassis
mA-1302/mA-1305 AXIe Chassis Operation Manual
Rev. D0
Page 5-8
April 2020
Set Fan Speed
By default, fan speed is set to AUTO and the Shelf manager auto adjusts the speed of the
fans to ensure the system is operating at optimal performance levels.
How to Set Fan Speed
1
Navigate to the Power Entry Module Data Table of the Chassis Web UI.
2
Select the desired Sensor Fan Button.
3
Set Fan Speed to the desired percentage. Refer to Chassis specifications for valid
fan range in RPMs.
4
Press Update to enable the new setting.
Fan Setting Overrides
In the event the Shelf Manager determines the temperature reading of a module exceeds
the manufacturer specification, the Shelf Manager performs the following actions:
•
A message is sent to the PEM to increase fan speed (overrides any manual settings).
•
The Shelf Manager continues to monitor the Sensor Data Reports received from the
PEM and other system sensors.
•
When the module reaches an acceptable operating temperature the Shelf Manager
gradually reduces fan speed while the Shelf Manager continues to monitor module
temperature.
•
If the module temperature does not decrease, the Shelf Manager powers-down the
module.
NOTE
Fans speeds can be set manually by the user, however, the Shelf Manager overrides
manual settings when conditions require (refer to section titled “Fan Setting Overrides”).
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