130BA642.12
A22
Active
W22
Active
W22
Active
A22
Active
High
Low
High
Low
Open
Closed
Motor
Speed
Torque
Ref.
Brake
Relay
Mech Brake
Feedback
Gain Boost or
Postion Control
Mech Brake
Position
Activate Brake
Delay
P. 2-23
Torque Ramp
Down Time
p. 2-29
Stop Delay
P. 2-24
Ramp 1 Down
P. 3-42
Ramp 1 Up
P. 3-41
Brake Release
Time
p. 2-25
Torque Ramp
Up Time
p. 2-27
Contact no.2
OPTIONAL
E.g. DI33 [71] Mech. Brake Feedback
Contact no.1
E.g. DI32 [70] Mech. Brake Feedback
Gain Boost. p. 2-28
Torque Ref. p. 2-26
Illustration 4.3 Brake release sequence for hoist mechanical brake control. This brake control is available in FLUX with motor
feedback only, available for asynchronous and non-salient PM motors.
2-26 Torque Ref
to
2-33 Speed PID Start Lowpass Filter Time
are only available for the hoist mechanical brake control
(FLUX with motor feedback).
2-30 Position P Start Propor-
tional Gain
to
2-33 Speed PID Start Lowpass Filter Time
can
be set up for very smooth transition change from speed
control to position control during
2-25 Brake Release Time
-
the time when the load is transferred from the mechanical
brake to the frequency converter.
2-30 Position P Start Proportional Gain
to
2-33 Speed PID
Start Lowpass Filter Time
are activated when
2-28 Gain
Boost Factor
is set to 0. See
for more
information.
NOTICE
For an example of advanced mechanical brake control
for hoisting applications, see
.
Product Features
VLT
®
AutomationDrive FC 301/FC 302 Design Guide, 0.25-75 kW
42
MG33BF02 - Rev. 2013-12-20
4
4