Siemens Sinamics S120 modular drive system uses busbar connections and DRIVE-CLiQ proprietary connectors to link power modules, motor modules, and control units in high-performance servo drive systems.
| Pin | Name | Function | Type |
|---|---|---|---|
| L1 | L1 | AC input phase 1 | PWR |
| L2 | L2 | AC input phase 2 | PWR |
| L3 | L3 | AC input phase 3 | PWR |
| DC+ | DC+ | DC bus positive | PWR |
| DC- | DC- | DC bus negative | GND |
| U | U | Motor phase U | PWR |
| V | V | Motor phase V | PWR |
| W | W | Motor phase W | PWR |
| DRIVE_CLiQ | CLiQ | DRIVE-CLiQ motor feedback | BUS |