Program features 53
into the motor. The current is set by parameter
. When the
reference exceeds parameter
, normal drive operation
continues.
Notes:
• DC hold is only available in speed control in Vector motor control mode (see page
• The function applies the DC current to one phase only, depending on the position
of the rotor. The return current will be shared between the other phases.
Continuous magnetization
A digital signal, such as a user bit in the fieldbus control word, can be selected to
activate continuous magnetization. This can be especially useful in processes
requiring motors to be stopped (for example, to stand by until new material is
processed), then quickly started without magnetizing them first.
Note:
Continuous magnetization is only available in speed control in Vector motor
control mode (see page
), and only when ramping is the selected stop mode (see
parameter
).
WARNING:
The motor must be designed to absorb or dissipate the thermal
energy generated by continuous magnetization, for example by forced
ventilation.
Settings
Parameters
,
,
Reference
Motor speed
DC hold
t
t
Summary of Contents for ACS860
Page 1: ... ABB INDUSTRIAL DRIVES ACS860 primary control program Firmware manual ...
Page 4: ......
Page 10: ...10 Table of contents ...
Page 18: ...18 Using the control panel ...
Page 24: ...24 Control locations and operating modes ...
Page 54: ...54 Program features ...
Page 78: ...78 Program features ...
Page 90: ...90 Application macros ...
Page 342: ...342 Additional parameter data ...
Page 380: ...380 Fault tracing ...
Page 381: ...Fault tracing 381 ...
Page 382: ...382 Fault tracing ...
Page 436: ...436 Control chain diagrams ...