5.3.2
Changing and setting the password
The password can only be set with PCM600.
For more information, see PCM600 documentation.
5.3.3
Identifying IED application problems
Navigate to the appropriate menu in the LHMI to identify possible problems.
•
Check that the function is on.
•
Check that the correct setting group (1 to 4) is activated.
•
Check the blocking.
•
Check the mode.
•
Check the measurement value.
•
Check the connection to trip and disturbance recorder functions.
•
Check the channel settings.
5.3.3.1
Inspecting the wiring
The physical inspection of wiring connections often reveals the wrong connection
for phase currents or voltages. However, even though the phase current or voltage
connections to IED terminals might be correct, wrong polarity of one or more
measurement transformers can cause problems.
•
Check the current or voltage measurements and their phase information from
Main menu/Measurements
.
•
Check that the phase information and phase shift between phases is correct.
•
Correct the wiring if needed.
•
Change the parameter
Negation
in
Configuration/Analog inputs/3-
phase analog group/SMAI_20_n:1
(n= the number of the SMAI used).
Changing the
Negation
parameter is not recommended
without special skills.
•
In PCM600, change the parameter
CTStarPointn
(n= the number on the
current input) under the parameter settings for each current input.
•
Check the actual state of the connected binary inputs.
•
In LHMI, select
Main menu/Monitoring/I/O status/Binary input
modules
. Then navigate to the board with the actual binary input to be
checked.
•
With PCM600, right-click the product and select
Signal Monitoring
.
Then navigate to the actual I/O board and to the binary input in question.
The activated input signal is indicated with a yellow-lit diode.
1MRS756801 A
Section 5
Troubleshooting
630 series
33
Commissioning Manual
