Introduction
Servomotor terminals with OCT
The servomotor EtherCAT Terminals EL7201-0010 (MDP742 profile, 48 VDC, 2.8 Arms) / EL7201-0011 (DS402 profile, 48 VDC, 2.8 Arms) and EL7211-0010 (MDP742 profile, 48 VDC, 4.5 Arms) / EL7211-0011 (DS402 profile, 48 VDC, 4.5 Arms) with integrated absolute value interface offer high servo performance with a very compact design. The EL72x1-001x was designed for the motor types of the AM81xx series from Beckhoff Automation.
The fast control technology, based on field-orientated current and PI speed control, supports fast and highly dynamic positioning tasks. The monitoring of numerous parameters, such as overvoltage and undervoltage, overcurrent, terminal temperature or motor load via the calculation of an I²T model, offers maximum operational reliability.
EtherCAT, as a high-performance system communication, and CAN-over-EtherCAT (CoE), as the application layer, enable ideal interfacing with PC-based control technology.
The latest power semiconductors guarantee minimum power loss and enable feedback into the DC link when braking.
The LEDs indicate status, warning and error messages as well as possibly active limitations.
With the One Cable Technology (OCT) the encoder cable is omitted by transmitting the signals of the encoder digitally via the existing motor cable. The option to read the electronic type plates of suitable motors from the AM81xx series enables a plug-and-play solution for maximum convenience during commissioning.
The EL72x1-xx1x terminals provide two digital inputs, which can be used for the Touch Probe functionality. The state of these inputs can be read out of the Select Info Data object (profile MDP 742 and DS 402).
 | Recommended TwinCAT version In order to be able to utilize the full power of the EL72x1-001x, we recommend using the EL72x1-0010 with TwinCAT 2.11 R3 or higher! |
| Mandatory hardware The EL72x1-001x must be operated with a real-time capable computer and distributed clocks. |
| Approved motors Trouble-free operation can only be guaranteed with motors approved by Beckhoff. |
Quick links
Connection instructions
- Chapter "Mounting and wiring",
- LEDs and pin assignment
- Shielding concept
- Notes on current measurement via Hall sensor
Configuration instructions
- Chapter "Commissioning",
- Configuration of the main parameters - Chapter "Configuration with the TwinCAT System Manager",
- Object description and parameterization