Huawei NetCol8000-E220 User Manual page 19

NetCol8000-E220 Modular Indirect Evaporative Cooling
System
User Manual
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Highlights
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Issue 02 (2019-10-10)
− Cascade: The number of operating devices varies depending on the thermal load in
equipment room to meet requirements promptly, eliminate hot spots, and save
energy.
− Anti-competitive operation: A mechanism is adopted to prevent devices in the same
equipment room operating in opposite status, in order to save energy.
− Self-teamwork control: If one of the communications cables in the teamwork
network is disconnected, two teamwork networks are formed. Devices without a
master can automatically determine the master one and continue teamwork control.
Remote management: You can monitor and manage one or more devices using the
remote management function provided by Huawei.
Provides a large space for recording and storing fault and alarm data. A minimum of
1500 historical alarms can be stored.
Provides access log backtracking. At least 1000 historical login and setting records can
be stored.
Displays 30-day temperature and humidity in colored curves and 30-day differential
pressure of supply air and return air (differential pressure control function is required) in
colored curves. Operation and maintenance (O&M) personnel can view the operating
status onsite.
Provides a comprehensive power monitoring function. Faults such as power reverse
phase, open phase, overvoltage, undervoltage, high frequency, and low frequency are
diagnosed and appropriate alarms are reported and recorded. The controller also provides
automatic protection, recovery, and restart.
The controller provides a touchscreen with a user-friendly interface.
The controller is highly precise and responsive.
The controller is protected by a multi-level password protection mechanism to avoid
misoperation.
Password verification is required upon the first startup to ensure the system security. No
password verification is required for subsequent startup if the first verification succeeds.
The controller provides functions such as automatic recovery after power failure and
water leakage detection, improving the system reliability.
The cooling capacity, air volume, as well as the operating status and time of each
component in the device are displayed on the LCD in real time.
The controller provides abundant external ports such as FE ports, CAN ports, RS485
ports, and USB ports that are protected by a security mechanism. These ports flexibly
meet the communication requirements and feature good electrical isolation.
Information can be displayed on the LCD in twelve languages: Chinese, English, French,
Spanish, Russian, Turkish, and so on.
The O&M personnel can export fault records in one-click mode, making it easy to
operate the device and learn the running status of the device.
The device supports communications protocols such as Modbus RTU, Modbus TCP, and
SNMP, facilitating connection to the network management system.
Intelligently identifies abnormal parameter settings (incorrect commands) and
automatically rejects them.
The controller automatically sends an audible and visible alarm signal if the indoor
temperature fluctuates beyond the normal range.
Copyright © Huawei Technologies Co., Ltd.
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