DKM-430 User Manual Rev_02 Firmware V-1.8
K92D01-EN - 48 -
KW and cosΦ readings are faulty although the Amp readings are correct:
-Current transformers are not connected to the correct inputs or some of the CTs are connected with
reverse polarity. Determine the correct connections of each individual CT in order to obtain correct KW
and cosΦ for the related phase, and then connect all CTs. Please review chapter “
AC CURRENT
INPUTS
”
The unit is inoperative:
Measure the supply voltage between supply terminals.
Check that the unit’s supply voltage is adequate to operating conditions.
If OK, turn all fuses off, then turn all the fuses on, starting from the supply fuse. Then test the unit
again.
Some program parameters are skipped:
These parameters are reserved for factory setting and cannot be modified.
Below is a basic list of most often encountered
troubles. More detailed investigation may be
required in some cases.
Short circuit outputs of unused Current Transformers.
21. TROUBLESHOOTING GUIDE
