Servomotor terminal for OCT, 50 V DC, 4.5 A<sub>RMS</sub> EL7211-0010
Power contact
+24 V
Power contact 0 V
Feedback +,- 
Digital Input 1, 2 
Power c. +24 V, 0 V 
Motor phase U, V 
Motor phase W 
Motor brake +, GND 
Load voltage 50 V, 
Load voltage 50 V, 
Top view 
Contact assembly 
extended shock and vibration range

EL7211-0010 | Servomotor terminal for OCT, 50 V DC, 4.5 ARMS

The EL7211-0010 servomotor EtherCAT Terminal with integrated One Cable Technology (OCT) offers high servo performance in a very compact design for motors from the AM8100 up to 4.5 ARMS. The One Cable Technology combines a motor cable and an absolute feedback system in a single cable. The integrated electronic type plate of the AM81xx motors can be read in automatically by the servo terminal to configure the motor parameters automatically. Thus, wiring and commissioning expenditure are minimised.

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 a 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. 16 LEDs indicate status, warning and error messages as well as possibly active limitations.

Technical data EL7211-0010
Number of channels 1 servomotor, absolute feedback, motor brake, 2 digital inputs
Connection method direct motor connection
Load type permanent-magnet synchronous motors
Nominal voltage 8…50 V DC
Output current IN 4.5 A (rms)
Performance increase
Peak current IN 9.0 A (rms) for 1 s
Frequency range 0…599 Hz
PWM clock frequency 16 kHz
Current controller frequency 32 kHz
Rated speed controller frequency 16 kHz
Output voltage motor brake 24 V DC (+6 %/-10 %)
Output current motor brake max. 0.5 A
Current consumption power contacts typ. 50 mA + holding current motor brake
Current consumption E-bus typ. 120 mA
Special features compact and system-integrated, absolute feedback, One Cable Technology (OCT), plug-and-play
Weight approx. 95 g
Operating/storage temperature 0…+55 °C/-25…+85 °C
Relative humidity 95 %, no condensation
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 20/see documentation
Approvals CE, UL
EL9576 brake chopper terminal, 72 V, 155 µF
AM811x Synchronous servomotor for servo terminal, 0.20 – 0.52 Nm
AM812x Synchronous servomotor for servo terminal, 0.5 – 0.8 Nm
AM813x Synchronous servomotor for servo terminal, 1.35 Nm
ZB85xx Shield busbar with mounting rail holder, shield busbar clamps
ZK47x4-04xx, ZK4000-xxxx Supply cables for Compact Drive Technology