Glanded Pumps - THERMO-ECO-ENGINEERING úvod

Pump Management Systems Wilo-Control
Pump Control
Planning Guide
LON is an open, non-manufacturer-specific system which enables
open, intersectional communication between different components
and systems. It thus offers advantages to planner, installer and operator,
such as:
• Intersectional trade integration
• Non-manufacturer-specific
• Creation of functional added values
• Avoidance of installation and planning errors thanks to a standardised
data interface (prerequisite: no changing transfer media)
• Reduction of installation expenditure in comparison with standalone
systems
• Reduced investment costs through multiple utilisation of sensors
• No expensive gateway solutions are required for data communication
between stand-alone systems
• Flexibility in the event of modifications and retrofitting
• Reduced operating costs thanks to intelligent energy management
• Efficiency and operational reliability due to hydraulic load management
in heating / ventilation / air-conditioning installations
• Overall transparency due to centralised displays, interventions and
monitoring
• Standardised and transparent operation of equipment and buildingservices
systems
• LONWORKS provides for 2 directions of communication:
• Vertical communication between components on the field level and
automation stations on the automation level
• Horizontal communication between components at the field level
It is horizontal communication in particular which allows the set-up
of decentralised structures which operate without higher-level automation
stations. It has thus become possible to realise previously
expensive control tasks with significantly lower installation expenditure;
e.g. a controlled pump with communication capability can
exchange data directly via LON with a valve, a differential-pressure
sensor or a boiler control system and undertake control tasks. In parallel
fashion, the pump can send electrical and hydraulic operating
data for statistical conditioning and if necessary fault and run /
process signals to the higher-level control room and receive higherlevel
commands from this control room.
Communication takes place with the standardised LONTALK protocol
and utilises the firmly defined network variables of the LONMARK
“Pump Controller Object for HVAC Applications” functional profiles.
Operating-data management by BA
Data management by BA systems allows the logging and recording of
cyclical and eventful data. For example:
• Maximum output data for p and Q
• Minimum output data for p and Q
• Current power consumption P 1
• Operating hours
• Cumulative power consumption
• Status reports
• Fault reports with date, time and cause
The multitude of the information and functions listed allows specific
energy and maintenance management and thus contributes to
reducing costs.
It is thus feasible, by relating the performance and work data to the
measured heating load, to assess overall plant efficiencies and performance
data.
204 Subject to change without prior notice 09/2006 WILO AG