Product description
Page 36
3.4.5
Technology module: PROFIBUS
Support of PROFIBUS communication as per DP-V0. For drive technology applications the functions as per PROFIDRIVE
Version 3.0 are available. The features include functions as per Application Class 1 (speed and torque control) as well as per
Application Class 3 (point-to-point positioning).
It is also possible to include the device into control systems via an I/O mapping via PROFIBUS. From a control point of view,
this option offers the same functionality as a conventional PLC coupling via parallel wiring with the device’s digital I/Os.
Via a special item telegram it is also possible to access all device-specific functions, exceeding the functionality defined by
PROFIDRIVE.
3.4.6
Technology module: EtherCAT
The EtherCAT interface enables the connection of the item servo positioning controller C Series to the EtherCAT fieldbus
system. The communication via the EtherCAT interface (IEEE-802.3u) is realised with the aid of EtherCAT standard cabling.
3.4.7
I/O functions and device control
Ten digital inputs provide the elementary control functions (see
chapter 4.6.6 I/O interface
The item C Series comprises a target table, in which the positioning targets are stored and from which they can later be
retrieved. At least four digital inputs serve the purpose of target selection; one input is used as a start input.
The limit switches serve the safety limitation of the motion space. During a homing one of the two limit switches may serve as a
reference point for the positioning control.
Two inputs are used for the power stage enabling on the hardware side as well as for the controller enabling on the software
side.
High-speed sample inputs are available for different time-critical applications (for example homing, special applications).
The item servo positioning controller C Series has three analog inputs for input levels in the range of
+10V
to
-10V
. One input
is designed as a differential input (16 bit), to guarantee high interference immunity. Two inputs (10 bit) are single-ended. The
analog signals are quantized and digitalized by an analog-digital converter at a resolution of 16 bit or 10 bit. The analog signals
provide the setpoints (speed or torque) for the control.
In common applications the existing digital inputs are already used for basic functions. For the use of further functions such as
teach-in mode, separate “start homing” input or stop input, the analog inputs AIN 1, AIN 2 as well as the digital outputs DOUT 2
and DOUT 3, which are also usable as digital inputs, can optionally also be used.
