Trouble shooting
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Error
Condition
Possible cause
Remedy
Are the motor load fluctuations too
great?
Choose an inverter and motor of a
higher rating.
Reduce load fluctuations to a
minimum.
The motor run
is unstable
Are there motor resonating
frequencies?
Avoid critical frequencies by using
jump frequencies (
A 63
–
A 68
) or
change the carrier frequency (
b 83
).
Has the correct maximum frequency
been set?
Check the configured operating
frequency range and the V/F
characteristics.
The motor’s
rpm does not
match
frequency.
Have the nominal rpm of the motor
and the gear reduction ratio been set
correctly?
Check the nominal rpm of the motor
and the gear reduction ratio.
The inverter power supply had been
shut off before the entered parameter
settings were saved by pressing the
STR key.
Enter the parameter settings once
more and save each input made.
The entered
parameters have
not been saved.
After switching off the power supply
the entered values are copied into the
internal EEPROM. The power off
duration should at least be 6 seconds
or more.
Enter the parameter settings once
more and then turn off the power
supply for more than 6 seconds.
The saved
parameters are
not the same
as the
parameters that
had been
entered.
The copy unit
parameter
settings have not
been copied to
the inverter.
After copying the parameters from the
copy unit SRW into the inverter the
power supply was left in the on state
for only less than 6 seconds.
Copy the parameter settings once
more and then keep the power supply
turned on for more than 6 seconds.
The motor won’t
start or stop and
also no set value
can be entered.
Have the functions
A 01
and
A 02
been configured correctly?
Check if the settings made under
A 01
and
A 02
are correct.
Has the software lock function been
activated?
Deactivate the software lock using
b 31
so that all parameters can be
changed again.
Has the hardware lock been
activated?
Deactivate the digital input configured
as SFT.
No data entries
can be made.
Parameters can
neither be set nor
changed.
Has position 4 of the dip switch (on
the back of the copy unit) been set to
ON?
Set position 4 of the dip switch to OFF
so that the remote operator can be
read out.
The electronic
thermal pro-
tection is
activated (trip
E 05
).
Has a too high manual boost been
configured?
Have the correct settings been made
in conjunction with the electronic
thermal protection function?
Check the settings for boost and
electronic thermal protection.
Important note for saving changed parameters:
After changed parameters have been saved with the STR key (when parameters are changed
using the L2000 digital operator) or with the COPY key (when parameters are copied into the
inverter using the SRW copy unit) no entry must be made using the inverter’s digital operator for at
least 6 seconds. However, when a key is pressed within this time, or a reset command is issued, or
the inverter is switched off, the data may not be saved correctly.
Содержание L2000 Series
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