Control of a DC brake (P-AXIS-00410)
With this parameter the control of a DC brake for spindles is assisted. A control bit that enables DC braking is transferred to the motor controller.
The value of the parameter describes the bit number of the drive control word that shall be used for transmission. A value of zero for this parameter means for example that bit zero (bitmask 0x0001) of the drive control word shall be used for transmission. A value of 1 for this parameter disables this function, no control bit for DC braking is transferred to the drive controller.
The control bit is zero when:
- The axis accelerates to their target velocity (in either positive or negative direction).
- The axis reverses its movement direction (M3 -> M4, or M4 -> M3).
In all other cases the control bit is set.
The real control of the DC brake (e. g. monitoring of minimum velocities and magnetisation times) has to be implemented in the drive controller.
Variable name | Type | Permissible range | Axis type | Dimension |
dc_brake_control_bit_nr | SGN16 | -1 <dc_brake_control_bit_nr < 15 | R | ---- |
Drive typeP-AXIS-00020 | Valid values for P-AXIS-00410 (bit number) |
4 (Simulation) | -1 , 0 .. 15 |
3 (PROFIDRIVE) | -1, 8, 9, 13, 15 |
 | DC brake control is only implemented for drive types Simulation and PROFIDRIVE. |