Leine & Linde has launched Drive-CLiQ on an encoder platform for long life operations in harsh drive environments such as exposure to strong vibration, shock, and mechanical loads. This means the new encoder is easily installed to the motor mechanics typically found in heavy duty applications such as paper mills, steel plants, and cranes, without an adaptation.
Drive-CLiQ is Siemens’ new communication protocol for motor feedback in a Sinamics drive system. It is an Ethernet-based interface for connection of different kinds of components, such as motors, frequency converters, and encoders. Leine & Linde is the first producer to implement the DRIVE-CLiQ interface on a heavy duty encoder platform.
This L&L encoder transfers position and speed data over the same protocol. Scanning generates absolute position data, which means that each step of the turn is represented by a unique code, both single-turn for the exact position of the shaft, and multi-turn for the number of full revolutions.
The protocol also transmits real-time speed data. Thanks to a high encoder resolution (19 bit single-turn) and fast cycle time (31.25 µs), the digital speed value given by the encoder can be used for accurate speed control in a closed loop.
A key feature of Drive-CLiQ simplifies commissioning and configuration when setting up components in a system. Each unit has an electronic label with basic data-like part number and technical specification. This way, the encoder is recognized by the system when installed and automatically set up to its exact configuration. A Drive-CLiQ system also minimizes cable requirements. Up to five units may be connected to a hub for data transfers over a common cable. This saves cost and trims installation time.
Because these encoders are for harsh environments where motors may be driven near their rating, the encoder also supports local temperature monitoring by providing a connection for temperature sensors of the type KTY84-130. These sensors are capable of measurement over the entire operational range of the encoder and motor.
For more information, contact Kathleen Stoneski at HEIDENHAIN
877-565-9151 or bsetbacken@heidenhain.com
Filed Under: Encoders, News