www.lorentz.de, version 070402. Errors excepted and possible alterations without prior notice
1
ETATRACK
®
active
Installation of Controller
and Motor
1 Function of the ETATRACK active Controller
The tracker controller calculates the duration
of the days based on the output voltages of
the solar-modules – disconnecting the solar-
array will result in wrong daytime calcula-
tions!
Parallel operation of tracker control-
ler with battery charger or Inverter can
cause wrong tracking movements.
An
additional small PV-Module should be used
for such applications: Min. 5 Wp for locations
between 45°North and 45° South, min. 10Wp
for locations
‡
45°North or South for the
tracker power supply. Only the total electrical
separation between tracker controller and
battery charger / inverter ensures perfect
operation.
LORENTZ PS Pump Controllers
do not require the additional PV-Modul
First connect the motor power cable and the motor reed
switch, then connect battery and the solar module to the
controller terminals. The solar module is used for Day /
Night-detection.
Set the jumper to northern or southern hemisphere.
Now the motor can be moved manually in small steps by
pushing the East or the West button
Press the Manual button to initialize the controller.
After that the controller will start the tracking automatical-
ly.
First it will move some degrees to West direction (not with
the jumper setting to “Southern Hemisphere” as the frame
is already in West position). Then it will move (back) into
East direction.
After reaching the final East position it will start to move
to the final West position and then back to »High Noon«
position. That is a learning process for the controller. The
rest of the first day will be handled as a standard day.
In case reverse action is determined the two
motor cables has to be reversed!
Disconnect and reconnect the battery and the
solar module in order to make a controller
reset and the learning process will start
again.
During the night the tracker moves into »High Noon«
position. After the first night the tracking will fit the real
duration of the next day.
Overload protection:
The tracker controller has an integrated overload protec-
tion: After an overload occurred the controller stops the
motor, the Overload LED goes On (Power LED goes Off)
Only disconnecting power can reset the overload ( battery
and solar). Before resetting please check the mechanical
conditions: Try to find out where the tracking frame or the
motor is blocked and check the whole assembly for
smooth movement.
Polarity protection solar input:
In case of wrong polarity connection of the solar modules
to the tracker electronics, no damage will occur.
Correct the wiring
Polarity protection battery input:
In case of wrong polarity connection of the battery, the
fuse will blow.
Correct the wiring and replace the fuse.
Power consumption:
Max. 1,25 kWh per year
Trouble shooting:
Check all cables and the fuse first.
In case of a low battery voltage (11V) the controller shuts
the system off and moves the tracker to high noon posi-
tion. It can be still moved manually with the east and
West buttons.
Once the voltage of the battery has reached 12,5V the
tracker will start again to follow the sun.
Check if the tracker can move easily. Disconnect the
motor if needed and control by hand the easy movement.
