Further evidence of the rise of Ethernet on the plant floor can now be found in the introduction of OEM components. A prime example of this is ABB’s launch of the MicroFlex e150 Ethernet servo drive family for the Ethernet-based machine automation market.
According to ABB, the drives feature real-time operation with EtherCAT, and are compatible with EtherNet/IP, Modbus TCP and TCP/IP protocols for use in networked systems hosted by PLCs or other devices, as well as in motion control systems with distributed intelligence.
The markets for which this new drives family was created include machine automation applications such as metal cutting machinery (plasma/waterjet), grinding or glue laying, and common packaging automation such as form/fill/seal. Two high-speed registration inputs and a multi-tasking programmability in the drives also mean that the drives can be used for speed-intensive applications such as labeling.
MicroFlex e150 drives come with embedded programming capability compatible with ABB's motion control language (MINT). As a result, the drives can be used stand-alone for single-axis or distributed intelligence motion control applications ranging from simple moves to complex motion tasks such as flying shears or cam-motion profiles. Built-in I/O and extended I/O (including fast latch inputs for registration applications) come standard with the drives.
Also standard on the drives is a universal encoder interfacing capability that allows the drives to be connected to dual encoders — one incremental encoder and one serial-base encoder, such as EnDat 2.2, SSI or BiSS. This allows dual feedback configurations, with separate velocity and position feedback, to eliminate mechanical inaccuracies in applications such as CNC machinery. It also reportedly simplifies integration into configurations where an axis is following a master axis or centralized 'line shaft', such as in packaging machines.
The drives’ support for the Safe Torque Off functional safety is in accordance with IEC 61800-5-2 and is designed to meet SIL 3 and performance-level e (PLe) standards. This feature permits machine builders to incorporate high-integrity safety into machinery designs by disabling the drive's output so that it cannot generate torque in the motor.
