Practical report

Torsten Roll,
Managing Director AMIS GmbH
Control cabinet construction and electrical installation

Additional labelling – a necessary evil

As Managing Director of the control cabinet manufacturer AMIS GmbH (Munich), Torsten Roll knows only too well the potential improvements there could be for interfaces during handover of control cabinets in plant and construction engineering. We asked him about it.

Question: “Mr. Roll, are the labels for control cabinet components always produced by the control cabinet manufacturer?”

Torsten Roll: “Yes, generally we supply our control cabinets complete with all labels.”

Question: “When the control cabinets are handed over on plant and construction engineering sites, there always seems to be a need for replacement and addition of some labels. Why is this so?”

Torsten Roll: “In a very few cases, labels have come off in transport or due to defective fixings. However, by contrast, plant and construction engineers often make changes to the features of equipment at short notice, which could not be foreseen when producing the control cabinets. When the control cabinets are delivered, these changes then also have to be reproduced by retrofitting and additional labels in the control cabinet.”

Question: “Who is responsible for this additional work?”

Torsten Roll: “With plant and construction engineering, based on our experience around 60% of the retrofitting work in control cabinets is caused by one-off or multiple changes to the plant or equipment. We, as the control cabinet producer, are then responsible for any retrofit changes and additions to the signs and labels. About 40% of the retrofitting work in control cabinets results from functional changes, which only proved necessary during the course of trial runs or test stages to achieve improvements. These changes are then organised by the operator.”

Question: “How are the replacements and additional labels produced? What work is involved?”

Torsten Roll: “It is simplest for us, as a control cabinet manufacturer, if the change requirements established on site are fully determined, identified and notified in a single process. We submit this notice as a purchase order to our workshop, where the required components and labels are manufactured and then sent to the construction site. They are then fitted there. All in all, this involves quite a significant workload, which increases further if the changes to the plant or equipment are done in a piecemeal manner, as is often the case. Maybe there's a need for a more powerful motor here, or the subsequent installation of a motor brake there. This means an extremely terse and tedious communication with our workshop, ever new delivery routes, identifying the changes from a technical and commercial perspective over and over again.”

Question: “What relief does it bring to your company having the possibility of producing replacement and additional labels and signs directly on site?”

Torsten Roll: “It is a huge relief for us if it's a unit or process that's easy to use to provide all the label and sign requirements throughout the control cabinet. There's simply no work involved with ordering and no more time delays.”

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Hermann OberhollenzerDipl. Bus. Adm. (FH), Managing DirectorTel.:+49 (0)6233 6000-902

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