|
Type |
AF |
|
Devices supporting the parameter |
Lexium LXM52 Drive, Lexium LXM52 Linear Drive, Lexium LXM62 Drive, Lexium LXM62 Linear Drive, Lexium ILM62 Drive Module, Sercos Drive |
|
Traceable |
Yes |
MechVelocity shows the actual velocity, which is calculated by deduction from the actual position MechPosition, in units per second. It is displayed on the drive shaft (gear box output side). The YOffsetVelocity from the Y offset generator is included (see Reference and Actual Values).
Coordinate displacement with SetPos (FC_SetposDual(), FC_SetposGroup(), FC_SetposSingle()) does not affect this parameter. The parameter Direction must be taken into account when interpreting MechVelocity. The value of MechVelocity is calculated once per Sercos cycle (CycleTime).
Relative to the actual speed at the drive shaft, the MechVelocity is delayed by the time ShaftDelay. This means, a velocity including YOffsetVelocity is displayed that is delayed to the drive shaft by the ShaftDelay time.
NOTE: The parameter value is calculated in dependency of the parameters that are transferred from the slave to the master via the real-time channel of the Sercos. If the Sercos bus is not in phase 4, then a standard value is indicated here. If the Sercos bus is in phase 4 (operating phase), then the parameter value is calculated and indicated. This parameter has no meaning for asynchronous motors without encoder (in open-loop V / f control mode, ControlMode = open-loop control / 1).
