—————— Instruction manual ——————
125
5.3.5.3 Field converter
The default TPD32-EV converters are set to operate without Voltage control. The following settings must be taken
into consideration when a functioning in Voltage control is needed or when the field of the connected motor is
not power supplied via the converter.
All the settings described in this chapter must be carried out in disable condition (no voltage on terminal 12).
Selection of the functioning system
- With a constant field current:
Flux reg mode
= Constant current
Enable flux reg
= Enabled
- With Voltage control:
Flux reg mode
= Voltage control.
In the CONFIGURATION menu set the max output
voltage via the
Max out voltage
parameter.
Enable flux reg
= Enabled
-
Field circuit not supplied by TPD32-EV
Flux reg mode
= External control
Enable flux reg
= Disabled
Setting the rated field current
- Set the rated field current of the motor via the
Motor nom flux
parameter.
- When the field motor current is substantially lower than the rated current of the field converter, adapt trough
the S14 dip switches the field converter. It must be configured according to the table 5.3.5.3.1 Via the
Nom
flux curr
parameter it is possible to select the new field rated current.
- For fixed field current operation, if the actual motor (base) field current
≤
10% of the maximum rating of
the field package it is required to calibrate the field current feedback scaling using dipswitch S14.
- For weak field operation, also referred as “CEMF field control” or “crossover field control”, if the top base
speed Motor nom flux
≤
10% of the maximum rating of the field package it is required to calibrate the
field current feedback scaling using dipswitch S14.
Calibration to the exact field current setting is not required, as long as the above conditions are met.
Calibration is not required if the field control is provided by a separate field converter.
See the "Field current setting resistors" table in chapter "2.3.3 Output" on page 29.
Flux current min/max
- Setting in LIMITS / Flux limits menu via the
Flux current max
and
Flux current min
parameters as a
percentage of
Nom flux curr
.
Содержание TPD32-EV-...-2B
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