Danfoss VLT AutomationDrive FC 300 Series - Page 51

130BA642.10
Motor
Speed
Torque
Ref.
Relay
Mech Brake
Gain Boost or
Postion Control
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
Premag
Gain Boost. p. 2-28
Torque Ref. p. 2-26
Position P Start Proportional Gain p.2-30
Speed PID Start Proportional Gain p. 2-31
Speed PID Start Integral Time p. 2-32
Speed PID Start Lowpass Filter Time p. 2.33
Illustration 3.34 Hoist mechanical brake control for FC 302 FLUX with motor feedback
I) Activate brake delay: The frequency converter starts again from the mechanical brake engaged position.
II) Stop delay: When the time between successive starts is shorter than the setting in 2-24 Stop Delay, the frequency converter starts
without applying the mechanical brake (e.g. reversing).
NOTE
For an example of advanced mechanical brake control for hoisting applications, see 8 Application Examples.
Introduction
VLT
®
AutomationDrive FC 300 Design Guide, 0.25-75 kW
MG33BE02 - VLT
®
is a registered Danfoss trademark 49
3
3
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