24
UMG 103
Possible error
No
LED
is lit.
Measured
current
is too large or too
small.
Measured
current
is
too small.
Measured
voltage
is too small or too
large.
Measured
voltage
is
too small.
Cause
External fusing for the
power supply voltage has
tripped.
Device is defective.
Current transformer factor
is incorrectly programmed.
Overrange.
The peak current value at
the measurement input has
been exceeded by harmonic
components.
Measurement in the wrong
phase.
Voltage transformer
incorrectly programmed.
Overrange
The peak voltage value at
the measurement input has
been exceeded by harmonic
components.
Remedy
Replace fuse.
Send device to the manufacturer
for repair.
Read out current transformer ratio
and program with the software
GridVis.
Install larger current transformer.
Install larger current transformer.
Important!
Ensure the
measurement inputs are not
overloaded.
Check connection and correct
if necessary.
Read out voltage transformer ratio
and program with the software
GridVis.
Install voltage transformers.
Install voltage transformers.
Important!
Ensure the
measurement inputs are not
overloaded.
What to do in case of errors