WATTrouter Mx - user manual
How to fit and setup the device
Page 74 from 82
sensing module defect
sensing module or take them to repair.
There are suspicious waveforms
shown in chart "Current wave
oscilloscope"
This is normal
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.
Positive measured power value
(production) differs too much
from the value on the inverter
display
There is connected some
load, which decreases this
value.
No defect
Inverter shows
approximate values, or
the status is not stable
No defect
Incorrect phase sequence
or incorrect current
orientation settings
Follow the steps specified in the previous
troubleshooting item.
Low tariff signal is missing
Low tariff signal is not
connected
Connect the low tariff signal to LT terminal.
You must connect the signal through an
auxiliary relay as specified in this manual.
Low tariff signal is not
active
Wait until the signal is active, or manually
test the auxiliary relay by switching it on
(some relays offer this option).
Regulator failure/defect
Replace the regulator or take it to repair.
ANDI inputs do not work
Input function set
incorrectly
For ANDI inputs it is absolutely necessary to
correctly setup input function according to
connected input device/sensor.
Measurement with
external current
transformers does not
work
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.
S0 impulse output from
external meter/inverter is
connected with reverse
polarity
Observe polarity of the device output
(energy meter, inverter).
Signal coming from the
output is an unsupported
impulse signal
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.
Connected analog
temperature sensor does
not work
Connect only compatible sensors according
to chapter Technical specifications. Select
ANDI input function that corresponds with
