Danfoss iC7 Motion Series Application Manual page 244

Application Guide | iC7 Series Motion
Default Value: 0.2
Unit: s
P 5.12.2.13 Brake Release Bandwidth
Description: Set the release control bandwidth.
Default Value: 100
Unit: %
Additional Information on Brake Settings
6.6.13.5
P 5.12.2.1 Brake Output
0 Indicates that mechanical brake is disabled. Use the value 10105 to set a digital output where 1 refers to the control board, 01 refers to
the option, and 05 refers to the terminal number.
Additional selections appear based on the hardware of the options connected to the drive and the available fieldbuses.
P 5.12.2.2 Brake Priming Torque
The value is set as percent of nominal torque. The value defines the torque applied against the closed mechanical brake before release.
The torque/load on a crane is positive and is 10– 160%. To obtain the best starting point, set the parameter to approximately 70%.
The torque/load on a lift can be both positive and negative and between -160% and +160%. To obtain the best starting point, set the
parameter to 0%. The higher the torque error, the more movement during load takeover.
P 5.12.2.4 Brake Priming Time
The value in the parameter defines the duration of the torque ramp up in clockwise direction.
P 5.12.2.6 Brake Release Time
The value in the parameter defines the time taken for the mechanical brake to open. The configuration in the parameter acts as a
timeout when brake feedback is activated.
P 5.12.2.8 Brake Hover Time
Defines the time at 0 speed. The value in the parameter defines the time interval from the moment when the motor is stopped until
the brake closes. To adjust transition of the load to the mechanical braking, set both Brake Close Time and Hover Time parameters. This
parameter is a part of the stop function.
P 5.12.2.10 Brake Close Time
Defines the delay from electrical closing of brake to when the brake physically closes. When closing, the load is transferred from motor
to mechanical brake during disengaging. Enter the brake close time of the coast after ramp-down time. The shaft is held at 0 speed with
full holding torque. Ensure that the mechanical braking has locked the load before the motor enters coast mode. To adjust transition
of the load to the mechanical braking, set parameters 5.12.2.10 Brake Close Time and 5.12.2.8 Brake Hover Time. Setting of brake delay
parameters does not affect the torque. The drive does not register that mechanical braking is holding the load. After setting parameter
5.12.2.10 Brake Close Time, the torque drops to 0 after a few minutes. The sudden torque change leads to movement and noise.
P 5.12.2.12 Brake Disengaging Time
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Parameter Type: Range (0 — 5)
Data Type: REAL
Parameter Type: Range (0 — 10000)
Data Type: REAL
Parameter Number: 3005
Access Type: Read/Write
Parameter Number: 3015
Access Type: Read/Write
AB318753549016en-000301 / 136R0284