Schrack Technik CX plus Series FRACXP06R-, Руководство пользователя

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51
Troubleshooting
Fault / alarm Possible cause Remedy
No notification on the display

Measuring / supply voltage is
missing

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
U
ALARM

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
I lo
ALARM

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
I hi
ALARM

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 of
the voltage measurement
identified as faulty

Check the setting of the
current transformer ratio in
the SETUP menu
(SETUP/100/Pt resp.
SETUP/203) and correct it
if necessary.

Check the setting
“Connection of voltage
measurement
”
(SETUP/205) and correct it
if necessary (depends on
the set nominal voltage).
Incorrect display of the current

Incorrect current transformer
ratio has been set.

Check the setting of the
current transformer ratio in
the SETUP menu
(SETUP/100/Ct resp.
SETUP/202) and correct it
if necessary.
The active power factor, active
and reactive power, missing
reactive power for the control
target are displayed incorrectly.

The automatic initialisation
has not been executed.

The automatic initialisation
was cancelled with error.

Start the automatic
initialisation
“SETUP/100/AI resp.
SETUP/207)
” in the SETUP
menu.