4.1.4 Axis types and PROFIdrive Application Classes
For the standardization of commonly used axis types PROFIdrive [PI 3172 PDP] defines the PROFIdrive Application Classes as defined in [PDP] and shown in Table 12. These Application Classes are the base for the definition of the DriveAxisTypes in this Companion Specification (see Figure 12).
| No. | Application Class | Interface | Functions b |
|---|---|---|---|
| 1 | Standard Drive | n-setpoint, torque-setpoint, current-setpoint | Cyclic IO Data interface a |
| 2 | Standard drive with distributed technology controller (continuous process) | Technological setpoint-actual values (command variables) | Cyclic IO Data interface with Drive to Drive communication a |
| 3 | Single Axis positioning drive, with local Motion Control | pos-setpoint, run requests | Cyclic IO Data interface a |
| 4 | Motion Control with central interpolation and speed setpoint interface Optional: DSC (Dynamic Servo Control) | n-setpoint x-actual additionally, for DSC: ∆x (xerr), KV (kPC) | Cyclic IO Data interface, Clock Synchronous Operation, DSC |
| 5 | Motion Control with central interpolation and position setpoint interface | x-setpoint | Cyclic IO Data interface, Clock Synchronous Operation |
| 6 | Motion control for clocked processes, or distributed angular synchronism | Command variables, motion instructions | Cyclic IO Data interface, Clock Synchronous Operation, Drive to Drive communication |
a The cyclic interface may also be operated clock-synchronously if, for example, it is a question of synchrony of the actions in the case of several drives. b For all Application Classes: acyclic interface for parameters, diagnostics, identification. | |||