The TM54F Terminal Module is a dual-processor I/O interface with 4 fail-safe digital outputs and 10 fail-safe digital inputs for using Safety Integrated functions of the SINAMICS S120 drive system via external actuators and sensors.

All of the available safety functions integrated in the drive can be controlled via the fail-safe digital inputs of the TM54F Terminal Module. For the case that the parameterized safety functions of several drives operated together on a CU320-2 or SIMOTION D4x5 are to be executed together, then these drives can be grouped in the TM54F Terminal Module. This has the advantage that only one fail-safe digital input has to be connected for these drives.

The fail-safe digital outputs and inputs have two channels with an internal crosswise data comparison via the two processors. A fail-safe digital output consists of one P-switching and one M-switching output as well as one digital input to read back the switching state. A fail-safe digital input consists of two digital inputs.

Safety sensors can be connected over two switchable 24 V sensor supplies and evaluated via the fail-safe digital inputs. The switchable 24 V sensor supply ensures that the fail-safe digital inputs can be dynamized to detect dormant errors (this dynamization is used to check the shutdown paths). An non-switchable 24 V sensor supply is additionally provided by the TM54F Terminal Module for connecting safety sensors that cannot be dynamized.

The TM54F Terminal Module should be connected directly to a Control Unit via DRIVE-CLiQ. Each Control Unit can only be assigned to one TM54F Terminal Module.

Additional DRIVE-CLiQ nodes such as Sensor Modules and Terminal Modules (however no additional TM54F Terminal Module) can be operated on the TM54F Terminal Module. Motor Modules and Line Modules must not be connected to a TM54F Terminal Module.