Global Processing

The World’s first profibus-enabled peristaltic pumps

December 15, 2008

Introducing three new NEMA-4X rated cased peristaltic pumps with certified Profibus DP networking capabilities- namely the 520, 620, and 720 Series from Watson-Marlow. All new pumps come with a five-year warranty. The first model to be shipped, the Watson-Marlow 720 Series, is the world''s first cased peristaltic pump with Profibus DP. In the past it has been necessary to use a Profibus gateway to control cased peristaltic pumps using this protocol, but never before has diagnostic data been available remotely via Profibus. Compared with non-networked pumps, the Profibus-compatible units reduce engineering, hardware and installation costs, as well as offer remote diagnostics that help to minimize plant downtime and maintenance costs. The 520, 620 and 720 Series main control and running status functions cover: Start/Stop, Speed, Direction of rotation; as well as Running hours, Tacho count and Flow calibration. In the unlikely event of a failure, the pump will transmit an initial alarm notification covering the following: General fault, Leak detected, Guard open (except 520Series) and Software version mismatch. The pump can then be interrogated over the Profibus network to give more detailed analysis of the failure and provide diagnostic errors: such as Overcurrent, Over/Under voltage, Over temperature, Motor stalled and Tacho fault.