Glossary

A 0-active function is considered to be fulfilled if the linked digital signal has the logical value 0.

An application heartbeat is a cyclical signal between the controller and inverter that is generated by the application of the controller. With the signal, the devices inform each other that they are ready for operation and can perform their tasks.

Common Industrial Protocol Safety – safety protocol for transmitting safe data for industrial automation applications

In a system with 2 or 3 encoders, the comparison value is used to validate the encoder signal. The safe process values are generated by a maximum of 2 encoders also in a 3-encoder system.

Cyclic redundancy check

The "emergency mode" function can only be triggered using the CBG2.A keypad. If an encoder fault or an error in safe communication is detected, the "emergency mode" function automatically triggers the muting function.

The F-address is the unique address of the safe communication station within a safe network used for checking the authenticity of the connection.

Function control block. All functions that move or control the motor are designed as individual FCBs. To perform a specific task (e.g. positioning), the corresponding FCB must be selected.

In generator mode, the speed and torque have opposite signs.

Hardware limit switches define the ends of the possible travel distance of a system. Hardware limit switches that are set via digital inputs of the inverter are 0‑active.

The jerk time specifies the duration for setting up and reducing the acceleration and serves to protect the application.

The lag distance specifies the value with which the current setpoint position calculated by the profile generator is offset to the actual position.

In motor mode, the speed and torque have the same sign.

For asynchronous motors, the value corresponds to 100% of the nominal motor torque. For synchronous motors, the value corresponds to 100% of the standstill torque.

Reference signals are threshold switches for defined actual values. Depending on the reference signal type, the threshold values are also ranges.

A restore point is a data backup of the parameter settings in the inverter.

Fail Safe over EtherCAT® – protocol used for the data transmission of safe data.

Safe brake control

Safe brake test

Safe cam

Safe direction

Safely limited acceleration

Safely limited increment

Safely limited position

Safely limited speed

Software limit switches are programmable limits that define the possible travel distance of a system. Software limit switches only become active when the drive is referenced.

Safe operating stop

Synchronous Serial Interface

Safe Speed Monitoring

Safe speed range

Safe stop

STO – Safe Torque Off

The system unit is a unit of measurement used by the device firmware.

A task system contains the entire state information of a running program.

The user unit is a unit of measurement defined by the user.

Universal Coordinated Time