PMS control architecture for smolt stations

DCS controllers coordinate several power sources while PLC devices interface with auxiliary systems or provide custom logic for highly specialised applications. The DCSes instantly and automatically switch to a different power source if the current source becomes unstable or unavailable. The switch can be carried out with or without synchronisation (open or closed transition).

PLC devices can be added to the control architecture to interface with auxiliary systems. When controllers are more than approx. 200 metres apart, fibre converters and optical cables are used for ring networks to ensure fast and reliable communication between controllers.

A DVC 550 voltage regulator lets you start and synchronise generators in less than 10 seconds and helps control applications with high inductive loads because of step-up transformers. An ALC-4 load controller lets you prioritise your loads, depending on the available power after a blackout when running in Island mode (no grid power) with generators only.

In the extremely unlikely event of complete PMS controller failure, you can operate and synchronise your gensets manually in switchboard mode, keeping your operation running until PMS control is re-established.

Read our fish farms application guide