ABB ACS880 - Page 520

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
Disabled / uint16Defines the level of flux braking power. (Other stopping
and braking modes can be configured in parameter group
21 Start/stop mode).
See section Flux braking (page 67).
Note: This is an expert level parameter and should not be
adjusted without appropriate skill.
Flux braking97.5
0Flux braking is disabled.Disabled
1Flux level is limited during the braking. Deceleration time
is longer compared to full braking.
Moderate
2Maximum braking power. Almost all available current is
used to convert the mechanical braking energy to thermal
energy in the motor.
Full
User flux reference /
uint32
Defines the source of flux reference.
Note: This is an expert level parameter and should not be
adjusted without appropriate skill.
Flux reference select97.6
0None.Zero
1
Parameter 97.7 User flux reference.
User flux reference
See Terms and abbreviations (page 132).
Other
100.00 % / real32
Defines the flux reference when parameter 97.6 Flux
reference select is set to User flux reference.
User flux reference97.7
100 = 1 % / 100 = 1 %User-defined flux reference.0.00 ... 200.00 %
0.0 % / real32This parameter can be used to improve the control
dynamics of a synchronous reluctance motor or a salient
permanent magnet synchronous motor.
As a rule of thumb, define a level to which the output torque
must rise with minimum delay. This will increase the motor
current and improve the torque response at low speeds.
Optimizer minimum
torque
97.8
10 = 1 % / 10 = 1 %Optimizer torque limit.0.0 ... 1600.0 %
Normal / uint16An optimization setting for balancing between control
performance and motor noise level.
Note: This is an expert level parameter and should not be
adjusted without appropriate skill.
Note: Other settings than Normal may require derating.
Refer to the rating data in the hardware manual of the drive.
Note: To improve the control performance, the switching
frequency reference is automatically increased with ABB
sine filter if the motor/drive current ratio is less than 0.55.
Switching freq mode97.9
0Control performance optimized for long motor cables.Normal
1Minimizes motor noise.Low noise
2Control performance optimized for cyclic load applications.Cyclic
3This setting is to be used by ABB-authorized service
personnel only.
Custom
520 Parameters