With the CM-820 control series, growing companies can realize projects even as their requirements increase and the number of drives at their disposal grows. The system comprises 19-inch rack units for four or eight drives and up to 2.2 kW motor output, with direction preselection display and offset remote controls with collective error messages. Accessories for link operation are supplied with each controller unit; collaboration with partner firms and the rental of additional controllers are also possible without further expenditure, as is use as a partial solution for smaller events.