BECKHOFF EL7211 User Manual
Motion
EL7211
Power contact
+24 V
Power contact 0 V
Res. excitation
+(R1), -(R2)
Res. sin +(S2), -(S4)
Res. cos +(S1), -(S3)
Motor phase U, V
Motor phase W
Motor brake +, GND
Load voltage 48 V,
GND
Load voltage 48 V,
GND
Top view
Contact assembly
EL7211 | Servomotor terminal for resolver, 48 V DC, 4.5 A
(I
rms
)
The EL7211 servomotor EtherCAT Terminal with integrated resolver interface offers high servo performance in a very compact design for motors from
the AM8100 and AM3100 series up to 4.5 A (I
rms
). The fast control technology, based on field-orientated current and PI speed control, supports fast and
highly dynamic positioning tasks.
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
Technology compact drive technology
Load type permanent magnet-excited three-phase synchronous motor
Number of channels 1
Number of outputs 1 x servomotor, 1 x motor brake
Number of inputs 1 x feedback
Connection method direct motor connection + feedback
Supply voltage electronics 24 V DC (via power contacts)
Supply voltage power 8…48 V DC (external)
Output current (rms) 4.5 A
Peak current (rms) max. 9.0 A for 1 s
Performance increase –
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
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
Distributed clocks yes
Special features compact and system-integrated
Electrical isolation 500 V (E-bus/field potential)
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/markings CE, UL
EL7211Motion
Power contact
+24 V
Power contact 0 V
Res. excitation
+(R1), -(R2)
Res. sin +(S2), -(S4)
Res. cos +(S1), -(S3)
Motor phase U, V
Motor phase W
Motor brake +, GND
Load voltage 48 V,
GND
Load voltage 48 V,
GND
Top view Contact assembly
Motion
EL7211
BECKHOFF New Automation Technology
We reserve the right to make technical changes.
Accessories
ZKxxx-xxxx-xxxx supply cables for compact Drive Technology
ZB85xx shield busbar with mounting rail holder, shield busbar clamps
Related products
EL7201 servomotor terminal for resolver 48 V DC, I
rms
= 2.8 A
BECKHOFF New Automation Technology
We reserve the right to make technical changes.
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