Start/Stop Mode - ABB ACS880 Firmware Manual

No. Name/Value
DIO2
Other [bit]
20.27 Jogging 2 start
source
21

21 Start/stop mode

21.01 Start mode
Fast
Const time
Automatic
Description
Digital input/output DIO2
Source selection (see Terms and abbreviations
If enabled by parameter
source for the activation of jogging function 2. (Jogging
function 2 can also be activated through fieldbus regardless
of parameter 20.25.)
1 = Jogging 2 active.
For the selections, see parameter
source.
Notes:
• If both jogging 1 and 2 are activated, the one that was
activated first has priority.
• This parameter cannot be changed while the drive is
running.
Start and stop modes; emergency stop mode and signal
source selection; DC magnetization settings; autophasing
mode selection.
Selects the motor start function for the DTC motor control
mode, ie. when 99.04 Motor control mode
Notes:
• The start function for the scalar motor control mode is
selected by parameter
• Starting into a rotating motor is not possible when DC
magnetizing is selected
• With permanent magnet motors,
must be used.
• This parameter cannot be changed while the drive is
running.
See also section DC magnetization
The drive pre-magnetizes the motor before start. The pre-
magnetizing time is determined automatically, being typically
200 ms to 2 s depending on motor size. This mode should be
selected if a high break-away torque is required.
The drive pre-magnetizes the motor before start. The pre-
magnetizing time is defined by parameter
Magnetization time. 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.
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.
Automatic start guarantees optimal motor start in most cases.
It includes the flying start function (starting into a rotating
motor) and the automatic restart function (a stopped motor
can be restarted immediately without waiting the motor flux to
die away). The drive motor control program identifies the flux
as well as the mechanical state of the motor and starts the
motor instantly under all conditions.
(11.02 DIO delayed status, bit 1).
on page 88).
20.25 Jogging enable, selects the
20.26 Jogging 1 start
is set to DTC.
21.19 Scalar start mode.
(Fast or Const time).
Automatic start mode
(page 48).
21.02
Parameters 151
Def/FbEq16
11
-
Not selected
Automatic
0
1
2