Operating Manual PLK8
Version 2.08
Page 19
7.
Electrical operation and recharging advice
To guarantee the long term faultless operation of the platform lift, following either a prolonged recharging
period or in the event of a lengthy power failure (more than 12 hours), switch off the lift and disconnect it
from the power supply.
Proceed as follows:
•
Unplug the recharger unit from the power supply.
•
If the recharger is installed in a wall mounted box, disconnect it from the power supply.
•
IMPORTANT
: press the
UP
or
DOWN
button shortly to stop the internal charging process.
•
Now turn off the lift by the main switch located under the
This procedure must be strictly observed, otherwise internal leakage currents will drain the batteries.
The general recommendation is that the lift should remain permanently connected to the recharger to ensure
optimal recharging and ensure a long lifespan of the batteries.
7.1
Automatic deactivation
If the lift is not adequately recharged, it will automatically deactivate itself after maximum 10 hours, to avoid a
deep discharge of the batteries. Before deactivation of the lift occurs, an acoustical signal will sound and a
message is visible in the display.
To restart the lift the operator must
press the RESET button
(see
) to return the lift to operation.
7.2
Recharging unit
The lift is supplied with a battery charger of the type “
Soneil 2403SRL
”.
This has a charging voltage of 24V DC and a nominal power of 48W.
The mains voltage supply must be between 90V
–
264V AC and the supply frequency
must be between 47
–
63Hz.
This unit has been chosen because it has a wide input tolerance range and is
therefore suitable for use in almost every part of the world.
7.3
Recharging cycle
The charging cycle is split into 3 stages:
1)
Recharging mode for deep discharged batteries: LED flashes
The recharging process begins with weak 0.5 V to 5 V voltage pulses. This has the effect of removing
the loose sulfation that has formed during deep discharge
2)
Standard recharging mode: LED is orange
The recharger switches to a constant current of 2 A until the batteries are fully charged and have
reached a voltage of 28,8V.
3)
Standby recharging mode: LED is green
The battery voltage is maintained at a constant 27,6V and the charge current slowly drops to zero.
The recharger can therefore always remain connected without damaging the batteries.
If the battery voltage should drop below 27,6 V the recharging cycle will repeat stages 2 and 3.
