Vertiv Liebert LVC, Руководство пользователя

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Vertiv | Liebert LVC | User Manual 24
Application of Fan Speed Controller
Chapter 4: Application of Fan Speed Controller
This chapter introduces the use of the fan speed controller, introduction of Human-Machine Interface (HMI)
and operation of HMI. This chapter also features the details of the fan speed controller, along with control
logics, wiring terminals, HMI operation, protection function and alarm function.
• It is recommended that users should not operate the fan speed controller unless necessary.
4.1. HMI
The fan speed controller operation and setup are provided through, RS485 serial communication port, keys
and LCD.
4.1.1. RS485 Serial Communication Port
The RS485 serial communication port is a port that is connected to the computer using factory-define
protocol. It is used for the factory commissioning and maintenance.
4.1.2. Keys and LCD
The keys and LCD, which can realize the functions in Table 4-1, provide the HMIs for maintenance personnel.
Refer to Section 4.2 for Operation Description of HMI for operation of keys and LCD HMI.
Table 4-1 Function Descriptions of Keys and LCD
Serial Number Function Description
F
Query the acquisition data in real
time
The acquisition data include condensing pressure,
ambient temperature, output percentage, the state of
fan enable signal and the state of alarm
A
Query the current alarm data in
real time
The current alarm data includes phase loss alarm,
PIM over temperature, fan failure, fan failure locked,
pressure sensor failure, EEPROM read fault alarm,
hardware over current, bus over voltage, spray high
pressure alarm, spray water system alarm, spray low
pressure alarm, fan not configuring alarm and NTC
failure
H
Query the history alarm data in
real time
The latest saved 100 historical alarms can be queried