Technical data

MKA4ST0UKPLAN5-7/Power Lan/ed.5/09-2003/UK

The charger limits the voltage absorbed by the batteries. This allows an optimal charge cycle for batteries since

there will be an initial period in which batteries are charged with constant voltage (and their voltage increase)

and a second period in which the voltage is constant (value of floating) and the voltage decreases.

When the charger current is above a threshold value, the front battery led will be ON showing that batteries

are recharging.

When the charger current is lower than this value, the battery led will be OFF, indicating that the batteries are

charged. If the battery led is blinking, the batteries are in floating condition because the charger current is

around the threshold value.

The microprocessor regulates fan speed according to the output current. At any moment, the enforced by-

pass can be executed.

By-pass led will turn red indicating that the load is supplied by the static by-pass and in the event of any

problem with the mains this will be transferred to the load.

While POWER LAN is working normally, several events can happen:

2.3.1 Output Overload

If the value of MAXIMUM CURRENT OUTPUT is exceeded, the buzzer, by-pass led and alarm led will activate;

fans will take their maximum speed and, after a while, if there is overheating, POWER LAN will stop, cut the

output and reset the alarms.

It will be necessary to start it up again through the On push button or using the software. If the overcharge

disappears before the POWER LAN shuts down, the alarms will be reset and POWER LAN will keep on

working normally.

If output current is between 38 and 50A, POWER LAN will stop after 60 seconds. If it is between 50 and 60A

it will stop after 15 seconds. Between 60 and 65A it will stop in 7 seconds and if over 65A, it will stop in 4

seconds.

2.3.2 Temperature Alarm

In the event of the internal temperature of POWER LAN being higher than the value of MAXIMUM INTERNAL

TEMPERATURE the alarms will be activated.

2.3.3 Protection of Overheating

If any component of POWER LAN reaches the value defined as MAXIMUM TEMPERATURE OF INVERTER-

5ºC, the alarm will be activated. To deactivate it, the temperature should be reduced under MAXIMUM

TEMPERATURE OF INVERTER -10ºC.

If the temperature keeps on rising and reaches the value of MAXIMUM TEMPERATURE OF INVERTER,

POWER LAN stops completely and cuts the output.

To restart POWER LAN, you must press the On push button or do it through software.

2.3.4 Battery Overvoltage

If battery voltage is higher than the value of MAXIMUM VOLTAGE OF BATTERIES the charger stops and the

alarms are activated.