Lorentz PS2-150 Series Manual For Installation And Operation page 64

62 Pump Accessories Installation
9.7 Sun Sensor module
CAUTION – To avoid multiple starts of the
pump in twilight conditions, the Sun
Sensor module must be installed and
configured for all PS2-1800 CS-F and all
PS2-4000 pump systems. Operating
without a Sun Sensor module can lead to
increased wear or damage to the pump.
Such damage is excluded from the
warranty.
The LORENTZ Sun Sensor module allows an irradiation level
to be set at which the pump is switched on. This means the
Sun Sensor module will not allow the pump to start until
there is sufficient irradiation to power the pump to the point
of water delivery.
The PS2-1800 and PS2-4000 controllers are supplied with
a special small 1.5 Wp PV module (pre-wired for crimping).
This PV module is used to measure the solar irradiation and
allows you to set irradiation dependent START / STOP values
for the pump.
These settings can only be done via LORENTZ PumpScanner.
(Please check LORENTZ partnerNET and the "PS DataMod-
ule and PumpScanner" manual).
Figure 27: LORENTZ Sun Sensor module
Correct Sun Sensor module settings are given in the
COMPASS report, subject to correct parameters. These
settings must be checked on site to make sure that the
parameters entered in COMPASS match the conditions on
site and that the Sun Sensor module is working as intended.
Mount the Sun Sensor module with the same alignment as
the solar array that powers the pump system. For example,
if the solar array is tilted at an angle of 20°, the PV panel
for the Sun Sensor module should be tilted exactly the same.
You can ensure this by mounting the PV module on the
frame of the PV module array.
CAUTION – Do not use any other PV
module than the one available from
LORENTZ or the PS2 controller will be
damaged.
CAUTION – Voltage reversal of the Sun
Sensor module will lead to damage of the
controller.