29
05H
command
Relay control
Write FF00 to close on the relay, write 0 to release the
relay.
9. Maintenance and Trouble Shooting
Possible
Problem
Possible Reason
Possible Solution
The meter has
no indication
after a control
power supply is
imposed
The power supply fails to
be imposed on the
meter
Check if the correct working voltage has
been imposed on the L/+ and N/- terminals
of the meter.
Check if the fuse for the control power
supply has been burnt down.
The measured
value is not
correct or does
not conform to
the expectation.
The voltage
measurement is not
correct.
Check if the neutral point has been
connected reliably.
Check if the measured voltage matches
the rated parameter of the meter.
Check if the transformation ratio of the PT
has been set correctly.
The current
measurement is not
correct.
Check if the measured current matches
the rated parameter of the meter.
Check if the transformation ratio of the CT
has been set correctly.
The power
measurement is not
Check if the measurement mode has been
set correctly.
Summary of Contents for PMAC615
Page 34: ...34 http www pmac com cn ...
