UNIFREM v.3.41x
10 May 2017
Page 108 from 180
Name [ID]
Description
Def.
interrupts the operation unnecessary often.
Is not evaluated
Fault " E13-Input phase loss (page 32) or " E55-Rectifier fault (VDC) (page 34)" is not
evaluated.
Is evaluated
Fault " E13-Input phase loss (page 32)" or " E55-Rectifier fault (VDC) (page 34)" is
evaluated.
Output
phase
loss [338]
Turning on the converter output phases loss evaluation.
The criteria for evaluation of this fault is current phase asymmetry of 30%,
calculated from the nominal current of the converter.
Is
evaluated
Is not evaluated
Fault " E2-Output phase outage (page 32)" is not evaluated.
Is evaluated
Fault " E2-Output phase outage (page 32)" is evaluated.
Motor
overloading [27]
Setting the method of evaluating the motor (load) thermal overloading.
Self-
cooling
Not evaluated
Converter does not evaluate the thermal overload of the connected device.
Self-cooling
Fault " E29-Motor overload (page 33)" is evaluated according to the motor temperature
model considering the motor rotation speed. In this mode, the generation of warning "
W17-MT Overload (page 29)" or fault " E29-Motor overload (page 33)" at low motor
speed may occur even for current lower than Nom. current [151] (page 44).
Forced cooling
Fault " E29-Motor overload (page 33)" is evaluated according to the motor temperature
model without considering the motor rotation speed.
AIN Fault [837]
This parameter turns on / off the evaluation of analog input faults. The fault is
evaluated only if the input is set to 4-20mA or 2-10V, output value is under the
minimal value and the fault evaluation is turned on.
Is
evaluated
Is evaluated
If the analog input is for a long time under the minimal value, the converter generates the
fault.
Is not evaluated
Converter accepts any analog input value.
Overfrequency
[85]
Turning on the fault evaluation for exceeding the stator limit frequency. Fault "
E10-Overfrequency (page 32)" can indicate controller loop faults or incorrect
parameters settings.
This fault protects the mechanical components of the device when the
converter and technological device positions increase the converter output
frequency beyond control. Fault occurs, if the output frequency exceeds the
value Overfrequency limit [97] (page 108). Origin of this fault may indicate
incorrect configuration of the control algorithms.
Is
evaluated
Is not evaluated
Fault " E10-Overfrequency (page 32)" is not evaluated.
Is evaluated
Fault " E10-Overfrequency (page 32)" is evaluated.
Overfrequency
limit [97]
Defines the stator frequency limit for evaluation of the fault " E10-
Overfrequency (page 32)".
520,00
Hz
÷ 600,00
Fault occurs if the fault evaluation is turned on in Overfrequency [85] (page 108) and the
converter output frequency exceeds this limit for a time longer than 1 second.
External
fault
source [225]
Setting the source of the external fault. If the source is active, the fault " E7-
External fault (page 32)" is generated. Is used as an emergency stop. Fault
blocks the converter operation.
None
Look choises of parameter's Quick stop source. [986] (page 49)
SPECIAL SETTING
Group of parameters number [554]
Setting the special source of the external fault.
MENU \ SETTINGS \ FAULTS AND WARNINGS \ OPTIONAL FAULTS \ SPECIAL SETTING
Name [ID]
Description
Def.
Ext. fault signal
[527]
Signal that is evaluated if the fault " E7-External fault (page 32)" occurs or
not. Either numeric or discrete signal can be chosen.
[184] Binary
inputs
Signal
External
fault
[528]
Conditions for external fault.
Look choises of parameter's Binary inputs [184] (page 17)
