Solcon RVS-DXM, Instruction Manual

Page: 45 / 65

45
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Control Keypad
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7.6.8
Fault Parameters
±
page 6
FAULT PARAMETERS
- **** -
Displays in MAXIMIZED MODE only
(refer to section 7.6.3 on page 32 for changing mode)
Display and default
values
Range Description Remarks
PHASE LOSS Y/N
YES YES
Note:
Range can
be extended
to YES/
NO
by using the
WIDER
SETTING as
described in
section
7.6.7
page 43.
Sets PHASE
LOSS trip PHASE LOSS protection trips the RVS-DXM
when 1 or 2 phases are missing.
Notes:
If RVS-DXM trips on PHASE LOSS do the
following:
(1) Verify
that phase voltages are within the
required range of the voltages.
(2) If you are sure that no real phase loss
exists, you can set PHASE LOSS Y/N
protection to NO.
This situation can occur in rare cases when
there is no real fault but the RVS-DXM
recognizes unusual behaviour like when
Total Harmonic Distortion in Voltage (THDV)
in the network is high.
(3) If this is a true case of PHASE LOSS
then after setting PHASE LOSS Y/N
protection to NO the motor will single phase
and most likely be tripped by the over load
protection mechanism.
(4) Phase loss might not be detected in
motor operating under a light load.
PHASE SEQ. Y/N
NO NO/YES Sets PHASE
SEQUANCE
trip
When RVS-DXM
LVFRQQHFWHG³,QVLGH
-
'HOWD´
PHASE SEQUANCE protection is always
activated.
INSULATION ALARM
OFF
OFF,
0.2
± 5Mohm
Sets
INSULATION
ALARM level. Consult factory for availability.
INSULATION TRIP
OFF
OFF,
0.2
± 5Mohm
Activates
INSULATION
ALARM trip. Consult factory for availability.
AUTO RESET
NO
NO/YES 6HWVVWDUWHU¶V
AUTO RESET
mode of
operation.
Starter can be automatically reset for UNDER
VOLTAGE and PHASE LOSS faults.
(Refer to section
7.6.3 on page 32 for details
on adjusting UNDER VOLTAGE and PHASE
LOSS faults)
To start the motor after UNDER VOLTAGE
and PHASE LOSS faults have disappeared,
stop the START signal to terminal B1 and
recommence the signal to terminal B1.
AUTO RESET function has a non-
programmed time delay of 60 seconds.
THERMISTOR TYPE
PTC PTC/NTC Sets input
THERMISTOR
TYPE
Available only when analog card is installed.
THERMISTOR TRIP
OFF
OFF,
0.1
± 10Kohm
6HWVVWDUWHU¶V
THERMISTOR
TRIP mode of
operation.
UNDER CUR. RESET
OFF 10
±
120min.,
OFF.
6HWVVWDUWHU¶V
UNDER
Starter can be automatically reset for UNDER
CURRENT fault. (Refer to section
7.6.3 on