
Power Meter 750 63230-507-201A1
Section 7—Maintenance and Troubleshooting 03/2007
© 2007 Schneider Electric All Rights Reserved30
The data being
displayed is inaccurate
or not what you expect.
Incorrect setup values.
Check that the correct values have
been entered for power meter setup
parameters (CT and PT ratings,
System Type, Nominal Frequency, and
so on).
Incorrect voltage inputs.
Check power meter voltage input
terminals to verify that adequate
voltage is present.
Power meter is wired
improperly. See
Appendix C—Instrument
Transformer Wiring:
Troubleshooting Guide
on page 51 for more
information on troubleshooting
wiring problems.
Check that all CTs and PTs are
connected correctly (proper polarity is
observed) and that they are energized.
Check shorting terminals.
Cannot communicate
with power meter from
a remote personal
computer.
Power meter address is
incorrect.
Check to see that the power meter is
correctly addressed.
Power meter baud rate (parity,
stop bit) is incorrect.
Verify that the baud rate of the power
meter matches the baud rate of all
other devices on its communications
link.
Communications lines are
improperly connected.
Verify the power meter communications
connections.
Communications lines are
improperly terminated.
Check to see that a multipoint
communications terminator is properly
installed.
Table 7– 1: Troubleshooting (continued)
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