Arrangement for monitoring motor starters, has breaker in current feed line with trigger device controllable by control device via control bus depending on current through motor starters

摘要

The monitoring arrangement has a measurement device (12) for measuring the current passing through each motor starter (1.1,1.2) and a breaker (5) in a current feed line (3) with an associated trigger device (6) controllable by a control device (7) via a control bus (2) depending on the current through the motor starters. A response message representing the measured current is passed from the starters to the control device over the control bus.