Danfoss VLT FC 302 Operating Instructions Manual page 60

Programming
2-20 Release Brake Current
Range:
par. [0.00 -
16-37 A par. 16-37
*
A]
6 6
2-21 Activate Brake Speed [RPM]
Range:
0 RPM [0 - 30000
*
RPM]
2-22 Activate Brake Speed [Hz]
Range:
0 Hz [0.0 - 5000.0 Hz] Set the motor frequency for activation
*
2-23 Activate Brake Delay
Range:
0.0 s [0.0 - 5.0
*
s]
58
Operating Instructions
Function:
Set the motor current for release of the
mechanical brake, when a start condition is
present. The default value is the maximum
current the inverter can provide for the
particular power size. The upper limit is
specified in 16-37 Inv. Max. Current.
NOTICE
When Mechanical brake control
output is selected but no mechanical
brake is connected, the function will
not work by default setting due to
too low motor current.
Function:
Set the motor speed for activation of the
mechanical brake, when a stop condition
is present. The upper speed limit is
specified in 4-53 Warning Speed High.
Function:
of the mechanical brake, when a stop
condition is present.
Function:
Enter the brake delay time of the coast after
ramp-down time. The shaft is held at zero
speed with full holding torque. Ensure that the
Danfoss A/S © Rev. 2014-07-29 All rights reserved.
2-23 Activate Brake Delay
Range: Function:
mechanical brake has locked the load before
the motor enters coast mode.
2-24 Stop Delay
Range: Function:
0.0 s [0.0 - 5.0 Set the time interval from the moment when
*
s] the motor is stopped until the brake closes.
This parameter is a part of the stopping
function.
2-25 Brake Release Time
Range: Function:
0.20 s [0.00 - 5.00 This value defines the time it takes for the
*
s] mechanical brake to open. This parameter
must act as a time-out when brake
feedback is activated.
2-26 Torque Ref
Range: Function:
0.00 % [0 - 0 %] The value defines the torque applied against
*
the closed mechanical brake, before release
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.
2-28 Gain Boost Factor
Range: Function:
1.00 [1.00 - Only active in flux closed loop. The
N/A 4.00 N/A] function ensures a smooth transition
*
from torque control mode to speed
control mode when the motor takes over
the load from the brake.
MG37A202