ABB ACS180 - Page 157

Parameters 157
DI4 Digital input DI4 (10.02 DI delayed status, bit 3). 5
DI5 Digital input DI5 (10.02 DI delayed status, bit 4). 6
Supervision 1 Bit 0 of 32.01 Supervision status (see page 214). 8
Supervision 2 Bit 1 of 32.01 Supervision status (see page 214). 9
Supervision 3 Bit 2 of 32.01 Supervision status (see page 214). 10
Other [bit] Source selection (see Terms and abbreviations). -
21.15 Pre-heating time delay Time delay before pre-heating starts after the drive is
stopped.
60 s
10...3000 s Pre-heating time delay. 1 = 1 s
21.16 Pre-heating current Defines the DC current used to heat the motor. The value
is in percent of the nominal motor current.
0.0%
0.0…30.0% Pre-heating current. 1 = 1%
21.19 Scalar start mode Selects the motor start function for the scalar motor
control mode, ie. when 99.04 Motor control mode is set to
Scalar.
Notes:
• The start function for the vector motor control mode is
selected by parameter 21.01 Start mode.
• With permanent magnet motors, Automatic start mode
must be used.
• This parameter cannot be changed while the drive is
running.
See also section DC magnetization on page 66.
Const time
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 21.02
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.
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
Automatic + boost If the Flystart routine does not detect rotating motor,
torque boost is applied.
4
No. Name/Value Description Default
FbEq 16
ACS180 FW.book Page 157 Tuesday, March 9, 2021 2:25 PM