Vertiv Liebert DCD, Руководство пользователя

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Function Description
• Water Temperature of the Optional Return Temperature Controller.
An alarm is displayed if the value is exceeded or fallen below.
Temperature display in °C / °F Setting the unit of all temperatures.
Connection of a door contact switch
The UFN0001B OneWire switching contact converter can be programmed as a door contact switch. Up to two
switches can be connected to the switching contact converter.
When the door is open, the fans are switched off and an alarm is displayed.
Connection of a leak sensor
The UFN0001B OneWire switching contact converter can be programmed as a leak sensor. Up to two leak
sensors can be connected to the switching contact converter.
An alarm is displayed if a leak occurs. The behaviour of the optional return temperature. controller in the event of
a leak can be selected on the TFT:
• Close
• Neutral
• Open.
Service shutdown
• Manual shutdown of the fans on the TFT for service.
• Automatic restart after 60 min with display of remaining time.
Modbus TCP/IP interface
• Reading of all states, measured values, alarms and settings.
• Writing of settings.
Accessories
Flow modulating valve
• Display of the measured water temperature and valve position.
• Setting the setpoint value of the heat exchanger return temperature (Vertiv™ Liebert® DCD).
• Control of the return temperature.
• Monitoring of alarm thresholds (see Setting of temperature alarms).
Accessories
Water temperature sensors for flow
and return
Display of water temperatures for supply and return of the heat exchanger.
Table 5.1 Different Possible Functions of Monitoring Package (continued)
5.3.4 Self-Diagnosis and Messages
The Vertiv™ Liebert® DCDactive constantly monitors the function of its components and reports errors to the user. Different
paths are provided for signalling. Furthermore, the monitoring option allows users to define their own alarms, such as
temperature alarms, leak alarms and door alarms.
Signalling Description
Reporting System
TFT Display:
• Flashing warning triangle.
• Plain text in message menu with message
memory.
• Modbus TCP/IP interface:.
• Messages and message memory can be
retrieved.
If an error is detected or an alarm condition occurs,
the information is provided and stored in the message
memory.
The exception is the door alarm. It is not saved so as
not to overwrite relevant messages in the memory.
Signalling Contact ( Red LED) Signalling contact closed Red LED lights up
Without the monitoring option, an error is only visible
through the red LED on the unit. Alarms cannot be
used.
The signalling contact and red LED work
synchronously.
Table 5.2 Self-Diagnosis and Messages
5 General Information
19
Vertiv™ Liebert® DCDactive Fan Module User Manual