The VW3A68800 is a remote mounting kit for the programming terminal of an Altivar 68 variable speed drive, and it includes a Modbus communication card. This is a monitoring accessory that allows the drive's operator interface to be located away from the drive enclosure — useful when the drive is in a restricted-access cabinet or a harsh environment and the HMI needs to be at eye level on the panel door or a remote station.
As a mounting kit, the VW3A68800 provides the hardware and the Modbus interface card needed to relocate the Altivar 68 programming terminal. The Modbus card handles the serial link back to the drive, so the remote terminal communicates over a standard RS-485 bus. Panel builders should account for the cable run length between the drive and the remote terminal — Modbus RS-485 is good for up to 1200 m at 19200 baud, but the actual limit depends on the cable gauge and the number of drops on the bus.