Danfoss VLT AutomationDrive FC 301 Programming Manual page 122

VLT AutomationDrive FC 301/302
Programming Guide
Motor
speed
Torque Ramp
Up Time
Torque ref. p. 2-26
W22
Active
Torque
ref.
Brake
relay
Contact no. 1
High
e.g. DI32 [70] Mech. Brake Feedback
Mech brake
Low
feedback
High
Contact no. 2
Low
OPTIONAL
e.g. DI32 [70] Mech. Brake Feedback
Open
Mech brake
position
Closed
Gain Boost p. 2-28
Gain boost or
position control
Illustration 46: Brake Release Sequence for Hoist Mechanical Brake Control
Parameter 2-26 Torque Ref to parameter 2-33 Speed PID Start Lowpass Filter Time are only available for the hoist mechanical brake
control (flux with motor feedback).
5.3.4 2-3* Adv. Mech Brake
Parameter 2-30 Position P Start Proportional Gain to parameter 2-33 Speed PID Start Lowpass Filter Time can be set up for very smooth
transition change from speed control to position control during parameter 2-25 Brake Release Time - the time when the load is trans-
ferred from the mechanical brake to the drive. Parameter 2-30 Position P Start Proportional Gain to parameter 2-33 Speed PID Start
Lowpass Filter Time are activated when parameter 2-28 Gain Boost Factor is set to 0. See
Parameter 2-30 Position P Start Proportional Gain
Table 178: Parameter 2-30 Position P Start Proportional Gain
2-30 Position P Start Proportional Gain
Default value: X0.0500
Conversion index: -4
Enter the position controller during start proportional gain. Quick control is obtained at high amplification. However, if the amplifi-
cation is too high, the process may become unstable.
Parameter 2-31 Speed PID Start Proportional Gain
Table 179: Parameter 2-31 Speed PID Start Proportional Gain
2-31 Speed PID Start Proportional Gain
Default value: 0.0500
Conversion index: -4
Enter the speed controller proportional gain during start. Quick control is obtained at high amplification. However, if amplification is
too high, the process may become unstable.
122 | Danfoss A/S © 2022.12
Brake Release Ramp 1 Up
Time P. 3-41
p. 2-27 p. 2-25
Parameter type: Range, 0.0000 - 1.0000
Data type: Uint32
Parameter type: Range, 0.0000 - 1.0000
Data type: Uint32
Stop Delay
Ramp 1 Down
P. 3-42 P. 2-24
A22 A22
Active Active
Illustration 46
Setup: All setups
Change during operation: True
Setup: All setups
Change during operation: True
Parameter Descriptions
Activate Brake Torque Ramp
Delay Down Time
P. 2-23 p. 2-29
W22
Active
for more information.
AU275636650261en-000101 / 130R0334