SS1 - Safe Stop 1
SS2 - Safe Stop 2
When a monitoring function or a sensor responds (e.g. light barrier) this function safely brings drives to a standstill (zero speed).
SS1 is also suitable for machines with high moments of inertia that must be safely and quickly braked.
Using SS2, for example, an axis can be safely stopped, the standstill position held and when deselected, can continue to be traversed without requiring a reference point approach.