
142 Parameters
Selects the motor start function for the scalar motor
control mode, ie. when
set to
.
Notes
:
• The start function for the vector motor control
.
• With permanent magnet motors,
start
mode must be used.
• This parameter cannot be changed while the drive
is running.
See also section
on page
Normal
Immediate start from zero speed.
0
Const time
The drive pre-magnetizes the motor before start. The
pre-magnetizing time is defined by parameter
. This mode should be selected if
constant pre-magnetizing time is required (e.g. if the
motor start must be synchronized with the release of
a mechanical brake). This setting also guarantees the
highest possible break-away torque when the pre-
magnetizing time is set long enough.
Note:
This mode cannot be used to start into a
rotating motor.
WARNING!
The drive will start after the set
magnetizing time has passed even if motor
magnetization is not completed. In
applications where a full break-away torque is
essential, ensure that the constant magnetizing time
is long enough to allow generation of full
magnetization and torque.
1
Automatic
The drive automatically selects the correct output
frequency to start a rotating motor. This is useful for
flying starts: if the motor is already rotating, the drive
will start smoothly at the current frequency.
Note:
Cannot be used in multimotor systems.
2
Torque boost
Torque boost is applied at start, ending when output
frequency exceeds 40% of nominal frequency or when
output frequency is equal to reference.
3
Aut boost
If the Flystart routine does not detect rotating motor,
torque boost is applied.
4
No.
Name/Value
Description
Default
FbEq 16
Содержание ACS280
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