KACO blueplanet 1502xi - Manual (Page 10)

Page 7 31000770-02-112609 blueplanet Operating and Installation Instructions 1502xi - 5002xi
4.7 Night time start switch
The unit switches off in the evening as nightfall approaches.
The display is no longer shown. In order to retrieve the values
from the current day (daily yield, daily hours of operation and
max. grid-feed power) after the display switches off, the unit
can be activated during the night by pressing the start switch
on the right side of the connection box.
ACTION
To do this, press the “5” switch (see Figure 4.1 – (5)) on
the right side of the connection box for approx. 5 seconds
until a display appears.
You can now scroll through the menu and retrieve the saved
values. If over one minute elapses without a key being pressed,
the unit switches off automatically once again.
The “Counter oper. hours “, “Total operating hours”, “Counter
yield”, and “Total yield” data are permanently saved and
totaled. This data remains in memory even if the inverter is
switched off for a long time. The daily yield, daily hours of
operation and the max. daily grid-feed power are available
until the following morning and are cleared when PV generator
voltage is present again.
4.8 The RS485 interface
Blueplanet inverters are also equipped with an RS485 interface
in order to enable remote monitoring of your photovoltaic
installation. Several inverters can be monitored over this
interface at the same time. Using the KACO proLOG,
watchDOG or other monitoring device you can receive yield
and operating data as well as error messages by SMS (text
message) or e-mail. These monitoring options are especially
recommended for situations where you are unable to check
the functionality of the installation on-site at regular intervals,
e.g. if you live far away from the installation site. Contact your
installer if you wish to integrate remote monitoring into your
system.
4.9 Display
Inverters in the blueplanet series are equipped with a back-lit
LCD (see figure 4.1 – (1) which displays measured values and
data.
In normal mode, the backlighting is switched off. As soon
as you press one of the keys, the backlighting is activated.
If approx. 1 minute elapses without a key being pressed,
it switches off once again.
NOTE
Calculating efficiency by measuring the current and voltage
values leads to unusable results due to the tolerances of the
measuring devices. The sole purpose of these values is to
monitor the basic operation of the system.
IMPORTANT
Due to measuring tolerances, the measured values may
not always correspond to the actual values. The inverter’s
measuring elements have been selected to ensure maximum
solar yields. Due to these tolerances, the daily yields
displayed on the inverter may deviate from the values on
your supply grid operator’s grid-feed counter by up to 15%.
At low power operation the sensors within the unit are not
as accurate as when at higher power therefore long term
operation may cause this high deviation. Under normal
operating conditions this deviation is minimal.
Section 4 · Operation