ELM7221-9018 | 1-channel servomotor terminal in metal housing, 48 V DC, 8 A (Irms), OCT, STO, Safe Motion, TwinSAFE Logic
The ELM72xx-9018 servomotor EtherCAT Terminal with integrated absolute value interface offers high servo performance in a very compact design. 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.
With the One Cable Technology (OCT) the encoder cable is omitted by transmitting the signals digitally via the existing motor cable. The option to read the electronic identification plates of suitable motors from the AM81xx series enables a plug-and-play solution for maximum convenience during commissioning.
The product is complemented by additional I/Os such as 2 digital inputs, which can be used to detect the end positions or to latch the position, and an additional output for the direct connection of a brake resistor for dissipating fed-back energy.
The servomotor terminal features TwinSAFE as standard for the realization of the following Safe Motion safety functions:
- Stop functions (STO, SOS, SS1, SS2)
- Speed functions (SLS, SSM, SSR, SMS)
- Position functions (SLP, SCA, SLI)
- Acceleration functions (SAR, SMA)
- Direction of rotation functions (SDIp, SDIn)
In addition, the functionality of a TwinSAFE Logic is integrated, so that the terminal can also be used as a safety controller.
- automatic reading of the electronic identification plate
- TwinSAFE STO/SS1, Integrated Logic
- pluggable connection technology
- integrated path control
Product announcement | estimated market release 2nd quarter 2021
|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, 1 x braking resistor|
|Number of inputs||2 x digital input, 1 x feedback|
|Connection technology||direct motor connection with OCT|
|Supply voltage electronics||24 V DC (via power contacts)|
|Supply voltage power||8…48 V DC (external)|
|Output current (rms)||8 A|
|Peak current (rms)||max. 16 A for 1 s|
|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||max. 0.5 A|
|Current consumption power contacts||typ. 100 mA + holding current motor brake|
|Current consumption E-bus||120 mA|
|Special features||compact (30 mm wide), absolute feedback, One Cable Technology (OCT), Safe Motion via TwinSAFE|
|Electrical isolation||500 V (E-bus/field potential)|
|Weight||approx. 390 g|
|Operating/storage temperature||0…+55 °C/-25…+85 °C|
|Relative humidity||95 %, no condensation|
|Approvals/markings||CE, UL in preparation|
|Design form||metal housing with signal LEDs|
|Dimensions (W x H x D)||30 mm x 100 mm x 95 mm|
|Installation||on 35 mm DIN rail, conforming to EN 60715 with lock|
|Wiring||specific push-in connection|
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