FusionModule5000 Smart Modular Data Center
Maintenance Guide (ECC800)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
cannot detect the
humidity and
temperature.
incorrect.
2. DIP switches of the
humidity and
temperature sensor are
incorrectly set.
3. The humidity and
temperature sensor is
faulty.
the controller.
2. Check that DIP switches of the
humidity and temperature sensor
map the corresponding aisle.
3. If the fault persists after the
preceding operations, replace the
humidity and temperature sensor.
The air return
temperature is high
or the fan
rotational speed is
fast. (The
temperature
fluctuation exceeds
± 1°C.)
Proportional, Integral and
Derivative (PID) control
related parameters are not
set properly.
Decrease the Kp value by 0.01 and do
not set Kp to a much smaller value.
Ensure that temperature fluctuation is
less than ± 1°C.
Condensate water
exists on the
surfaces of the
front or rear
panels.
1. The operating
environment of the
NetCol5000-C is
excessively humid.
2. The temperature set
point is set to a much
smaller value.
1. Enhance the airtightness of the
equipment room.
2. Adjust the temperature and
humidity set points.
4.3 ECC800 Troubleshooting
Table 4-3 Common faults and troubleshooting for PSUs
The Power indicator
(green) is off.
Check whether the AC
input is abnormal.
The Alarm indicator
(yellow) is steady on.
Overtemperature
protection
The ambient
temperature exceeds
the upper threshold.
Increase the cooling
capacity of the air
conditioner.
The air channel is
blocked. Unblock it.
AC input overvoltage or
undervoltage protection
Check whether the AC
input is abnormal.
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