Technical data

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MKA4ST0UKPLAN5-7/Power Lan/ed.5/09-2003/UK
CHLORIDECHLORIDE
CHLORIDECHLORIDE
CHLORIDE
POWER PROTECTION
1.2 Models available
The POWER LAN series shall include models with Single-phase input and Single-phase output as specified in
the following table under normal conditions:
2.0 SYSTEM DESCRIPTION
POWER LAN is the result of an innovative Research and Development programme designed to offer users
the most reliable power supply at minimum cost.
2.1 Components
• A charger, which converts alternate current from the mains into direct current for charging the
batteries
• Batteries, which power the UPS when the mains power fails.
• An inverter, which converts direct current from the batteries into sinusoidal alternate current in a
form which can be used by the sensitive loads. This ensures a very stable output voltage and fre-
quency.
• A static by-pass, auxiliary circuit which maintains the power of the loads in the case of inverter failure
or overload.
• A manual by-pass, which permits on-line maintenance without disconnecting your load.
• Monitoring and shutdown software with the ability, via RS-232 port to monitor UPS functioning and
programme POWER LAN parameters in order to provide optimum performance, and many other
features.
2.2 Microprocessor control and diagnostics
POWER LAN series operation and control shall be provided through the use of microprocessor controlled logic.
The coloured LEDs on the front panel of POWER LAN series shall provide a simple and immediate indication
of the operational state of the UPS.
For a more detailed and complete description on local diagnostics, see section 8 (options).
2.3 Modes of operation
In normal operation, from the instant measurement of output voltage, the microprocessor continuously
calculates the correct value of output voltage and initiates the corresponding step to keep output voltage
within the accepted tolerances.
The front mains led is On indicating that the mains is within voltage and frequency tolerances and the output
led is ON, showing that POWER LAN is supplying the load.
The charger charges the batteries and maintains them in charged state.
The microprocessor controls the charger voltage according to the internal temperature value of POWER
LAN, in order that the batteries are charged at the correct voltage for a specific temperature, thus prolonging
battery life.
MODELS Power Input Output
(kVA) @ 25°C
POWER LAN 5 230 V 5 Single-phase Single-phase
POWER LAN 7 230 V 7 Single-phase Single-phase