Control system for electrically controlled installations

A control system (1) for electrically controlled installations (2), comprising:

• at least one control device (6) for monitoring and control of the installation (2);
• at least one mobile manual operator-control instrument (10) is configured for displaying of installation information and for inputting of control commands by an operator-control person (12), wherein a wireless or wired connection is provided between the mobile manual operator-control instrument and the at least one control device, wherein the manual operator-control instrument (10) is provided with at least one manually actuatable safety switching element (15), wherein said safety element (15) includes an illuminating device (17) having at least one luminous means (18);
• a signal link (22) connecting between the safety switching element (15) of the manual operator-control instrument (10) and the at least one control device (6), which is configured to be coupled or decoupled as needed;
• wherein the control system (1) is configured for transformation of the installation (2) into a safe state upon a presence of coupled signal link (22) and upon manual actuation of the safety switching element (15), wherein the control system (1) is configured for activating of the illuminating device (17) upon the presence of a coupled signal link (22) and for deactivating of the illuminating device (17) upon the presence of a decoupled signal link (22);
• and
• at least one illumination control device (25) is configured for electrically or electronically controlled adaptation of a visually perceptible luminous intensity of the illuminating device (17) upon the presence of a coupled signal link (22).