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Program features 65
on). Furthermore, if the Run enable signal has been off, a new rising edge is
required before continuous magnetization starts.
• Continuous magnetization should not be enabled while the motor is rotating.
WARNING:
The motor must be designed to absorb or dissipate the thermal
energy generated by continuous magnetization, for example by forced
ventilation.
Settings
Parameters
(page
,
,
and
(page
).
Hexagonal motor flux pattern
Note:
This feature is only available in scalar motor control mode (see page
).
Typically, the drive controls the motor flux so that the rotating flux vector follows a
circular pattern. This is ideal for most applications. However, when operating above
the field weakening point (FWP), it is not possible to reach 100% of the output
voltage. This reduces the peak load capacity of the drive.
Using a hexagonal motor flux vector pattern, the maximum output voltage can be
reached above the field weakening point. This increases the peak load capacity
compared to the circular pattern, but the continuous load capacity in the range of
FWP … 1.6 × FWP is reduced because of increasing losses. With hexagonal motor
flux active, the pattern changes from circular to hexagonal gradually as the frequency
rises from 100% to 120% of the FWP.
Settings
Parameters
(page
Содержание ACS880-x04
Страница 1: ... ABB INDUSTRIAL DRIVES ACS880 primary control program Firmware manual ...
Страница 4: ......
Страница 18: ...18 Using the control panel ...
Страница 24: ...24 Control locations and operating modes ...
Страница 111: ...Application macros 111 Fieldbus control macro This application macro is not supported by the current firmware version ...
Страница 112: ...112 Application macros ...
Страница 496: ...496 Additional parameter data ...
Страница 544: ...544 Fault tracing ...
Страница 602: ...602 Control chain diagrams ...