Technical documentation
Rev. 02
Reactive Factor Controller CX plus
57
11 Troubleshooting
Fault / alarm
Possible cause
Remedy
No notification on the display
Measuring / supply voltage
misses
Check, if the connected
measuring voltage is in the
range of
90…550 V AC.
Check the correct
connection of the
measuring voltage and
correct it, if necessary.
Display notification
Measuring voltage out of
tolerance
Check the measuring
voltage.
Check the setting of the
nominal voltage and the
voltage tolerance and
correct it, if necessary.
Check the set voltage
transformer factor.
Display notification
"
Measuring current is too
small:
I < 5 mA (I is the actual
current which is measured by
the controller on the
secondary side of the
transformer)
Check the connection of the
current transformer, line
break possible
Remove the short-circuit
jumper of the current
transformer
The transmission ratio of
the used current
transformer is too large
Display
The current is greater than
permitted: I > 6 A
(I is the actual current which
is measured by the controller
on the secondary side of the
transformer)
Overload in the system
Current transformer ratio is
too small
Check the current
transformer ratio of the
transformer, replace by
suitable transformer type, if
necessary.
Incorrect display of the voltages
Incorrect voltage transformer
ratio has been set
Connection identification
voltage measurement
Identified as faulty
Check the setting of the
current transformer ratio in
the SETUP menu
(SETUP/100/Pt resp.
SETUP/203), correct it, if
necessary.
Check the setting
“Connection of voltage
