Electrical Specifications - Western Digital OpenFlex F3 Series User Manual

User Guide
The System Thermal Algorithm contains minimum and maximum thresholds related to the ambient
temperature of the system. The system is designed to maintain a maximum ambient temperature of 35°C.
Exceeding 35°C may result in damage to the hardware and potentially void the product warranty. These
thresholds allow for the best possible operating conditions. If the system goes outside of the minimum or
maximum threshold window, the BMC will adjust the fan speed to accommodate the issue and a fault will
be reported. The following table lists the Thermal Algorithm Thresholds along with the related fault levels
and threshold values.
The following table lists the different severity of thermal algorithm critical faults that are reported to the
user.
Table 2: Thermal Algorithm Critical Faults
The following table lists the device decision values that the system chooses from during operation. It
describes how the pulse width modulation (PWM) of the power that is being distributed to the cooling
fans reacts to different fault types.The fault will be reported based on the severity of the thermal issue.
Table 3: Thermal Algorithm Device Decision for Fan Control
Fault
Critical
Increase
Decrease
No Change
1.3 Electrical Specifications
Table 4: Electrical Specifications
Max Power Consumption
Typical Power Consumption
Input Voltage
PSU Connector Type
Component
Device
BMC
PSU
Sensor >= Critical
Sensor >= Max
Sensor <= Min
Min < Sensor < Max
Specification
Any sensor >= critical
Not installed FAN
Not installed PSU
Not installed Device or Blank
Not installed BMC
Any sensor >= critical
Any critical status on SMBus
Sensor Value
1600W
~1400W
200V - 240V
C16
1. Overview

1.3 Electrical Specifications

Critical Faults
Fan Response
100% PWM
PWM + increase step
PWM - decrease step
Hold PWM
Value
7