The DriveStopCurrentLimit parameter is used for the limitation of the peak current during a device reaction BD1 or BD2 in the drive. If for this parameter, a value between 10% and 100% of MaxDrivePeakCurrent is entered, then this value is used as peak current during the drive reaction best possible stop (BD1) or user-defined stop (BD2).
The value zero disables this function. Then the drive is stopped with MaxDrivePeakCurrent. No additional limit is active during BD1 and BD2.
The parameter is written to the drive during phase up of the Sercos bus (Phase 0 -> 4).
The magnetizing current (asynchronous motors) is not limited (more information see Current parameter).
NOTE: A modified parameter value is only transferred with a new Sercos phase up (phase 0 -> 4).
This parameter modifies the limits of the parameters ControllerStopDec and ControllerStopJerk. The corresponding stop profile is modified especially when the parameters ControllerStopDec or ControllerStopJerk are set to zero. This is because of the limited current during the stop profile that leads to a reduced acceleration.
The following graphic indicates the dependency with other object parameters for rotary drives:
The following graphic indicates the dependency with other object parameters for linear drives:
Yellow parameters are input parameters, whose values are taken into account by the Sercos phase up. Green parameters are input parameters, whose values are taken into account immediately. Gray parameters are output parameters. Thick arrows show that a parameter makes an impact on another parameter immediately by the input. Thin arrows show that a parameter does not have an impact until the next Sercos phase up or when the dependent parameter is entered. The arrow indicates the effective direction of the dependency.
Example:
Entering J_Load has a direct impact on the parameter MaxAcc. A revision of MaxAcc only has an impact on ControllerStopDec if,
oa Sercos phase up takes place or
othe parameter ControllerStopDec is modified.
