99
7.
Troubleshooting
7.2 Troubleshooting (continued)
Phenomena
Description
Action to take
Page
There is a large
discrepancy in measured
values
Does the selected phase
and wire type match the
wiring?
Wire correctly.
Does the CT match the
secondary current and
primary current settings of
the CT?
Check the secondary current and
primary current of the CT you are using
and set the right values.
If you are using multi-circuit metering,
the secondary current and primary
current of all of the circuits you are using
need to be set.
With multi-circuit metering, CT1
corresponds to circuit A, CT2
corresponds to circuits A and B, CT3
corresponds to circuits A and C, and
CT4 corresponds to circuits C and D.
Has the input exceeded the
input range of the CT?
Check the secondary current and
primary current of the CTs you are using
and use CTs that have appropriate rated
current values for the circuit being
measured.
Is the phase and wire type
setting correct?
Check the phase and wire type for the
measuring circuits and make the correct
settings.
Pulse is not output
Is the pulse output wiring
correct?
Wire correctly.
Is the pulse output set?
You need to set which of the OUT1/
OUT2/OUT3/OUT4 pulse output
terminals to output from. The default is
for all of them to be OFF (no pulse
output). Make sure they have been set.
Is the pulse output unit too
large for the active energy?
If the pulse output units are too large for
the increases in active energy, the
interval between pulse outputs will be
wide. Reduce the pulse output units.
