3.20 B-## Brakes
Parameter group related to the brake features in the drive.
3.20.1 B-0# DC Brake
Parameters to configure the DC brake and DC hold functions.
B-00 DC Hold Current
Range: Function:
50 %* [0 - 160. %] Enter a value for holding current as a percentage of the rated motor current I
M,N
set in par. P-03 Motor
Current. 100% DC holding current corresponds to I
M,N
.
This parameter holds the motor function (holding torque) or pre-heats the motor.
This parameter is active if DC hold is selected in par. F-25 Start Function [0] or par. H-80 Function at
Stop [1].
NB!
The maximum value depends on the rated motor current.
NB!
Avoid 100 % current for too long. It may damage the motor.
B-01 DC Brake Current
Range: Function:
50 %* [0 - 1000. %] Enter a value for current as a percentage of the rated motor current I
M,N
, see par. P-03 Motor Current.
100% DC braking current corresponds to I
M,N
.
DC brake current is applied on a stop command, when the speed is lower than the limit set in par.
B-03 DC Brake Cut In Speed [RPM]; when the DC Brake Inverse function is active; or via the serial com-
munication port. The braking current is active during the time period set in par. B-02 DC Braking Time.
NB!
The maximum value depends on the rated motor current.
NB!
Avoid 100 % current for too long. It may damage the motor.
B-02 DC Braking Time
Range: Function:
10.0 s* [0.0 - 60.0 s] Set the duration of the DC braking current set in par. B-01 DC Brake Current, once activated.
B-03 DC Brake Cut In Speed [RPM]
Range: Function:
0 RPM* [0 - par. H-13 RPM] Set the DC brake cut-in speed for activation of the DC braking current set in par. B-01 DC Brake Current,
upon a stop command.
B-04 DC Brake Cut In Speed [Hz]
Range: Function:
0.0 Hz* [0.0 - par. H-14 Hz] Set the DC brake cut-in speed for activation of the DC braking current set in par. B-01 DC Brake Current,
upon a stop command.
AF-650 GP Programming Guide
164
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