StopTimeLim

General

Functional Description

The parameter allows the configuration of the maximum ramp-down time when stopping the drive. Following expiry of the time, the PWM is switched off and the brake engages.

NOTE: The parameter value is transferred from the master to the slave via the parameter channel of the Sercos at every access. Typically, this takes about 10 ms. However, times up to 1 s can occur if there is a lot of data transferred on the parameter channel.

The maximum ramp-down time is not monitored if asynchronous motors without encoder are used (in open-loop V / f control mode, ControlMode = open-loop control / 1).

The following graphic shows the dependency with other object parameters for rotary drives:

 

 

The following graphic shows the dependency with other object parameters for linear drives:

 

 

Yellow parameters are input parameters, whose values are taken over by the Sercos phase up. Green parameters are input parameters, whose values are taken over 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.