Myenergi ZAPPI-2H07TB-G, Руководство пользователя

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Page 17 of 29
12. Troubleshooting
Symptom Cause Solution
Display is blank
•
There is no power to the
unit
•
Check for correct supply voltage at the
supply screw terminals (220 - 260V
AC)
In ECO+ mode, the
charge does not
start, the display is
always showing
Waiting for Surplus
and the export
power is 0W
•
Grid Sensor incorrectly
installed
•
Faulty Grid Sensor
• No signal from
harvi
(if
used)
•
Check the grid sensor is connected to a
CT terminal in the
zappi
or any CT
input in the
harvi
•
Check the Grid CT sensor is installed on
the correct cable (see CT Sensor
Installation)
•
Check resistance of the sensor - it
should be around 200
Ώ
when not
connected (remove the sensor from
the cable before testing resistance)
• If using
harvi
, check that the CT input
has been set to Grid in the
harvi
settings (under Linked Devices /
Devices in the
zappi
Advanced
Settings menu)
In ECO+ mode, the
charge does not
start, the display is
always showing
Waiting for Surplus ,
yet the export power
is showing correctly
•
Export Margin set too
high
•
Check Export Margin setting (default is
0W)
Generation power is
always 0kW
•
Generation CT not
installed
•
Install generation sensor and connect
to one of the CT inputs
•
Alternatively, if there is no Generation
CT, the Generation and House
consumption figures can be hidden on
the main screen by changing the Icons
setting in the Settings / Display &
Sound menu
Installation Limit !
displayed
Display will show the
phase(s) that is(are)
overloaded and the
prospective current
that would be drawn
if the
zappi
were
allowed to start
charge at the
minimum current
• The measured Grid
Current is greater than
the Grid Limit set in the
zappi
• Check the Grid Limit setting
•
Reduce the load in the property
•
In a three phase installation, consider
rebalancing the property load across
the three phases