SOLAR controls WATTrouter Mx series User Manual page 74

WATTrouter Mx - user manual
There are suspicious waveforms
shown in chart "Current wave
oscilloscope"
Positive measured power value
(production) differs too much
from the value on the inverter
display
Low tariff signal is missing
ANDI inputs do not work
How to fit and setup the device
sensing module defect
This is normal
There is connected some
load, which decreases this
value.
Inverter shows
approximate values, or
the status is not stable
Incorrect phase sequence
or incorrect current
orientation settings
Low tariff signal is not
connected
Low tariff signal is not
active
Regulator failure/defect
Input function set
incorrectly
Measurement with
external current
transformers does not
work
S0 impulse output from
external meter/inverter is
connected with reverse
polarity
Signal coming from the
output is an unsupported
impulse signal
Connected analog
temperature sensor does
not work
sensing module or take them to repair.
During normal operation there may be
shown even "exotic" waveforms. Be sure
this is the real current flowing through the
phase wire, a superposition of currents
flowing through the connected appliances
which are not sinusoidal or their power
factor varies from one.
No defect
No defect
Follow the steps specified in the previous
troubleshooting item.
Connect the low tariff signal to LT terminal.
You must connect the signal through an
auxiliary relay as specified in this manual.
Wait until the signal is active, or manually
test the auxiliary relay by switching it on
(some relays offer this option).
Replace the regulator or take it to repair.
For ANDI inputs it is absolutely necessary to
correctly setup input function according to
connected input device/sensor.
Connect a compatible external current
measuring transformer, such as another
current sensing module or other
WATTrouter compatible CT. Also check the
Phase and Current Orientation settings
which should follow the same principles as
for the ILx inputs.
Observe polarity of the device output
(energy meter, inverter).
Use only device with S0 impulse output
whose signal carries information about the
measured energy and has a minimum
impulse width of 1 ms. Signal parameters
are described in chapter Technical
specifications.
Connect only compatible sensors according
to chapter Technical specifications. Select
ANDI input function that corresponds with
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