Rockwell Automation Publication MOTION-RM003I-EN-P - February 2018 443
DC Injection Brake Current
Usage Access Data
Type
Default Min Max Semantics of Values
Optional - D Set/SSV REAL 0 0 10
3
% Motor Rated
The DC Injection Brake Current attribute defines the brake current level injected
into an induction motor stator when DC Injection Brake is selected as the
Stopping Action. This attribute is specified as a percent of motor rated speed.
DC Injection Brake Time
Usage Access Data
Type
Default Min Max Semantics of Values
Optional - D Set/SSV REAL 0 0 10
3
Seconds
The DC Injection Brake Time attribute defines the amount of time that the DC
brake current is injected into an induction motor stator when DC Injection Brake
is selected as the Stopping Action. This attribute is specified in seconds.
Flux Braking Enable
Usage Access Data
Type
Default Min Max Semantics of Values
Optional - D
(IM)
Set/SSV BOOL 0 0 1 0 = Flux Braking Disabled
1 = Flux Braking Enabled
The Flux Braking Enable attribute is a Boolean value that determines if the drive
device is to apply additional flux current to the induction motor in an effort to
increase motor losses and reduce the deceleration time while in the Stopping state.
This feature is useful when there is no Shunt Regulator or Regenerative Brake
available.
Auto Sag Configuration
Usage Access Data
Type
Default Min Max Semantics of Values
Optional - DE Set/SSV USINT 0 - - Enumeration:
0 = Disabled
1 = Enabled
2-255 = (reserved)
This attribute is used to enable the optional Auto Sag feature that, in the event of
detected a brake slip condition, safely lowers the load to the floor in a series of
controlled Auto Sag Slip Increments. When a brake slip condition is detected and
Auto Sag is enabled, the drive not only sets the standard Brake Slip exception, but
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