Application
Prästjorden’s Water Station in Halmstad use pumps controlled by drives from CG Drives. These drives use Anybus CompactCom to communicate with both Modbus- TCP and PROFIBUS which are used in the water station.
The water pumps are controlled by drives from CG Drives. All in all, Halmstad’s water system use approximately 200 soft starters from CG Drives, making the pumps accelerate and decelerate smoothly to minimize wear.
In addition, 60 drives are used to set the exact engine speed for the pumps. The drives generate substantial power savings since it is possible to set the pump’s revolutions per minute (RPM) instead of running the engine at full speed and throttle the water flow.
With Anybus CompactCom, CG Drives can sell their soft starters and drives, not being dependent of the industrial network of the end customer.
“We do not have any Anybus modules in stock at all,”says Dan Hägg at CG Drives Technical Documentation.“When we get an order for a product that needs network compatibility, we simply order the Anybus CompactCom which corresponds to the customer’s network, we plug it in and ship our product to the customer.”
“Anybus modules enable us to connect our products to several different networks,” says Lars-Olof Pejner, who is CG Drives’ account manager for Halmstad Municipality. “The communication modules also make it easier for the system integrators when installing the products in the electrical cabinets.”
左: Prästjorden's water station.Middle: CG Drives’ new soft starter, the Emotron TSA, is the first in a new series of soft starters from CG Drives. With Anybus CompactCom, customers can access exactly the network they need.Right: Anybus CompactCom converts the signals from the network in the water station (in this case, Modbus-TCP) and make these signals understandable for the drives and soft starters used to contol the pumps.
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