Safe Motion Control: Safe processes without interruptions

The innovative Safe Motion Control concept allows you to monitor the movement of a machine at any time. What's more, all the signals from the safety sensors and actuators can be combined. This generates information that indicates whether a machine operator is actually in danger when he or she enters or creates an interruption in a hazardous area. If there is no existing risk, it is even possible to access the machine during ongoing processes. In this case, the process is uninterrupted. This minimizes downtimes and faulty switching, as well as shortening cycle times. This in turn boosts the efficiency and availability of the machines and plants.

Always the right safety concept for any application

External safety concept
Components of the drive system:
Digital servo drive without safety function
Motor feedback system or encoder
External safety controller
Ethernet communication for diagnostic and process data

Safe shut-down channel, e.g., STO

Safe communication/motor feedback signal
Advantages of the external safety concept:
Excellent protection against manipulation thanks to separation of safety and automation tools
The external safety concept is independent of the drive system
Entire safety solution in one piece of software, saving time and money
Monitoring of multiple drives in a single system
Our verified and industry-specific application packages relieve you of engineering efforts
Integrated safety concept
Components of the drive system:
Digital servo drive with integrated safety function
Servomotor with safe motor feedback system
Ethernet communication for diagnostic and process data

Safe shut-down channel, e.g., STO

Safe communication/motor feedback signal
Advantages of the integrated safety concept:
Only a few male connectors and cables are required
Fewer components
Complete drive system from one manufacturer
Quick certification
Short response time for errors
Easy availability of the control parameters
Drive safety functions according to IEC 61800-5-2
Safe stop 1 (SS1)
Controlled shutdown maintaining the power supply to the drive elements
The ramp is monitored
After shutting down or below a speed limit: Activation of the safe torque off (STO) function
Safe Stop 2 (SS2)
Controlled shutdown maintaining the power supply to the drive elements
The ramp is monitored
After shutting down: Safe monitoring of the drive shaft position in a defined range
Safe operating stop (SOS)
After shutting down: Safe monitoring of the drive shaft position in a defined range
Safe brake control (SBC)
The safe brake control (SBC) function provides safe output signals for controlling external brakes
Safely limited speed (SLS)
When permission has been given, a safe, reduced speed is monitored in the special mode
If the speed is exceeded then one of the safe stop functions is triggered
Safe direction (SDI)
In addition to safe movement, there is also monitoring of safe direction of rotation (right/left)
In the event of movement in an unapproved direction of rotation, a safe stop function is triggered

The ideal solution for automated guided vehicle systems where people might be present in the hazardous area. Encoders are centrally connected to the safety controller and thus enable speed and brake ramp monitoring.

This monitoring optimizes the safety laser scanner's protective fields, which creates more effective use of the available space.

Statement from Niels Jul Jacobsen, CTO MIR, Mobile Industrial Robots, Denmark

Safe Motion Control allows intervention once it has detected a machine's downtime status. Components and tools can then be quickly replaced in machines secured by a door, cover, or similar safety device. The speed monitor ensures safer and more efficient operation in maintenance mode.