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159
In use Tcur lim +
Status message, indicating the used value of the current limit for the positive torque
direction as a percentage of
Full load curr
.
In use Tcur lim -
Status message, indicating the used value of the current limit for the negative torque
direction as a percentage of
Full load curr
.
Current lim red
Setting of the armature current limit, as % of Full load curr, when the Torque reduct
function is active.
Torque reduct
Selection for torque reduction. This function can be assigned to a freely programmable
digital input. When the torque reduction function is active, the current limit changes
accordingly by the percentage defined with the
Current lim red
parameter.
High
Torque reduction not active
Low
Torque reduction active
Example of the function of the
Current lim red
and
Torque reduct
parameters.
T current limit
(or
T current lim +/-
) = 80 %
Current lim red
= 70 %
Torque reduct
= High (not active)
Current limit = 80 %
Torque reduct
= Low (active)
Current limit = 70 %
The value for
T current limit
can be set in the START UP\Limits menu.
6.5.3 Flux limits
LIMITS
Flux limits
[467]
Flux current max [%]
[468]
Flux current min [%]
Parameter description
No.
Value
Standard
Configuration
min
max
Factory
American
Factory
Standard
Flux current max [%]
467
P468
100
100
100
*/**
Flux current min [%]
468
0
P467
5
5
-
* This parameter can be set on a programmable analogic outputs.
**
This parameter can be set on a programmable analogic input.
The limits regarding the field current are set in this submenu.
Flux current max
Percentage of maximum field current according to the
Motor nom flux
parameter.
The max. value (100%) corresponds to the circulation in the field circuit of the motor,
of a current equal to the value set in
Motor nom flux
.
If any curve has been set via
I field cnst
parameter, the variation of this parameter influ
-
ences the field current in a linear way .
(see Flux /if curve section 5.4.5)
Flux current min
Percentage of minimum field current according to the
Motor nom flux
parameter .
Its value states the circulation in the field circuit of the motor, of a minimum current
compared to the value set in
Motor nom flux
.
The value set here affect the threshold of the “Field loss” alarm indication . The
threshold is the half of
Flux current min
.
Содержание TPD32-EV-...-2B
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