InteliGen
NT
, InteliSys
NT
, InteliMains
NT
– Troubleshooting Guide,
SW version IGS-NT-3.1.0, IM-NT-3.1.0, ©ComAp
– August 2018
20
IGS-NT Troubleshooting Guide.pdf
P
TOT
=P
L1
+P
L2
+P
L3
= 100+(-100)+100=
100 kW
Many different combinations of incorrect CTs connection are possible so check both, order of
CTs and their polarity. Reactive power measurement is affected by incorrect CTs connection
in similar way as active power measurement.
Other
SummerTime Mode causing time rollback and time desynchronization
Problem:
Situation: multiple controllers are used on CAN bus and some of them have FW 2.6.3 (IGS-
NT-Std) or 2.9.1 (IM-NT) and others have older versions of FW. SummerTime Mode is active
(i.e. it is not set to DISABLE). Controllers are not powered and time change is about to be
done.
Example:
One controller with IGS-NT-Std FW 2.6.3 and one controller with IGS-NT-Std FW 2.6.1 are
connected via CAN. Date is 27.10. 2013 and time is 2:59 am. SummerTime Mode is set to
SUMMER (i.e. time change is active). Controllers are powered down and stay powered down
for period longer than one hour (e.g. 8 hours). When powered back on time and SummerTime
Mode changes rapidly causing bad time value and moreover causing desynchronization of the
time between controllers (e.g. IGS-NT-Std 2.6.3 shows 2:05 am and IGS-NT-Std 2.6.1 shows
7:05 pm).
Solution:
All controllers FW need to be updated to the latest version to prevent this behavior. When all
controllers are updated, SummerTime Mode works properly.
Note:
Note that this behavior occurs
only
when old and new versions are mixed. When only old
versions are present and controllers are powered down, time change does not occur (due to
previous error fixed in 2.6.3/2.9.1) but time is not desynchronized.
Wrn addr error occurs when updating to new FW
Problem:
Wrn addr error is issued. Controller address cannot be changed. (This may occur after
changing CANnegotiation setpoint to AUT and restarting the controller or after update to the
new FW version (e.g. IM-NT 2.9 to IM-NT 2.9.1)
– the update may activate CANnegotiation.)
Solution:
This particular problem (Wrn addr) is caused by the function CANnegotiation and occurs only
if there are controllers with the same CAN address and without CANnegotiation ability. This
occurs only in specific case with specific hardware.
It is essential to check setpoints and write correct value in them. In this particular case please
locate the setpoint CANnegotiation (in Comms settings) and change its state (there may be
AUT or a number after update) to OFF mode. Then
power down and power up
the
controller. The warning should not be displayed anymore.
Note:
Function CANnegotiation can be activated only when all controllers are able to perform this
function. If there are controllers with and without CANnegotiation (e.g. IM-NT and IG-MINT),
CANnegotiation must be switch OFF in all CANnegotiation capable controllers!
Statistic values window contains strange numbers upon start-up
Problem:
All NT controllers produced till March, 2007 (serial numbers 0703xxxx and lower) have
undefined values in statistics. Controllers produced later have all statistics values set to initial
value 0.
Solution:
Should you come across a controller with undefined statistic values, run InteliMonitor, go to
menu Monitor, select Set statistics, and click on but
ton “Clear all”. Wait until all numbers lose
their bold form (writing in process) and close the window.
