Torque Ref; Torque Ramp Time; Gain Boost Factor - Danfoss VLT AutomationDrive Programming Manual

Parameter Descriptions

2-26 Torque Ref

Range:
0.00 % [Application
*
dependant]

2-27 Torque Ramp Time

Range: Function:
0.2 s [0.0 - 5.0 s] The value defines the duration of the torque
*
ramp in clockwise direction.
MotorSpeed
Premag
Torque Ref. 2-26
Torqueref.
Relay

Gain Boost Factor

p. 2-28
GainBoost
Mech.Brake
1
Figure 3.8 Brake release sequence for hoist mechanical brake control
I) Activate brake delay: The Adjustable frequency drive 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 Adjustable frequency drive starts
without applying the mechanical brake (e.g., reversing).
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FC 300 Programming Guide
Function:
The value defines the torque
applied against the closed
mechanical brake before release
II
I
Brake
Torque Ramp
Ramp 1 upp. 3-41
Release
Time
Time
p. 2-27
p. 2-25
2 3
®
MG33MD22 - VLT is a registered Danfoss trademark
2-28 Gain Boost Factor
Range: Function:
1.00 [1.00 - Only active in flux closed-loop. The function
*
4.00 ] ensures a smooth transition from torque
control mode to speed control mode when
the motor takes over the load from the
brake.
Ramp 1 downp. 3-42 Stop Activate
Delay Brake
p. 2-24 Delay
p. 2-23
3-33
3 3