InteliGen
NT
, InteliSys
NT
, InteliMains
NT
– Troubleshooting Guide,
SW version IGS-NT-3.1.0, IM-NT-3.1.0, ©ComAp – August 2018 17
IGS-NT Troubleshooting Guide.pdf
P
Akt
System load
Reserve selected setpoint #LoadResStrt x
Setting setpoint Pwr management to DISABLED in genset controllers means that P
BNom
is
always 0 in IM-NT (no power information is received from genset controllers) and it is
necessary to set #LoadResStrt x to a negative value to meet the condition for MGCB closing.
It is sufficient to set #LoadResStrt x to -1 if only one MGCB needs to be closed (P
Akt
is always
0 before the first MGCB breaker is closed). However, this setting is not sufficient if several
MGCBs should be closed and it is necessary to set #LoadResStrt x to a lower value.
E.g. it is necessary to set a #LoadResStrt x setpoint to -101 (or a lower value) to achieve
second MGCB closing if P
Akt
is 100 after closing of the first MGCB:
P
BNom
> P
Akt
+ Reserve
0 > 100 + (-101)
PC software
There is no history in .ant file
Solution:
a) InteliMonitor / Settings / History – the Typical program setting is to “Site monitored from this
computer only”. If this is not true, i.e. some other computer may be connected sometimes to
the site (controller), it may read out the history records and after this computer is connected
again, there appear to be no records in the archive. In such a case (especially can happen
with remote, e.g. modem connections), please switch to “Site monitored from more
computers”, which ensures proper history reading. The first option provides faster history
reading if there are only few new records, but with more computers accessing the same site
leads to the above mentioned behaviour.
b) Archive was saved with GenConfig tool with version lower than 2.1. GenConfig is offline tool
for configuration purposes, so archives saved using this tool does not contain actual history
data. That’s why history is not saved at all with this tool. Starting from version 2.1, GenConfig
is able to read history from controller and save it as part of controller configuration file.
History is not complete
Problem:
Some history records which are available in controller are not included in downloaded history.
Solution:
This problem is caused by InteliMonitor setting. It happens if history reading is set to Site
monitored from this computer only and more computers are used to read data from a
controller. InteliMonitor with Site monitored from this computer only setting reads only history
records which were not downloaded during the last connection and records are missing if the
last connection was done using a different computer.
Go to Settings -> History and change setting from Site monitored from this computer only to
setting which matches your needs. Recommended settings are Site monitored from more
computers or Service tool (see InteliMonitor-x.y-Reference Guide manual for more
information).
Electrical measurement
Controller measures wrong generator/mains/bus voltages or currents
Problem:
Controller measures wrong generator/mains/bus voltages or currents, because setpoint Basic
settings: CT ratio prim / Im3ErFlCurCTp / VT ratio / Vm VT ratio is set to a wrong value.
Setpoint setting does not match CT / VT ratio of used measurement transformer.
Solution:
a) Change it to correct value according to the VT/CT specification.
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