Simultaneous Activation Of Safety Functions - Danfoss VLT Safety Option MCB 150 Installation Manual

Installation Guide | VLT® Safety Option MCB 150/151

3.2.4 Simultaneous Activation of Safety Functions

All safety functions can be active at the same time. However, Safe Torque Off has priority over all other safety functions. Functions
already started (for example Safe Stop 1 or safely limited speed) are canceled and the drive coasts.
• Safe Torque Off has the highest priority. If the Safe Torque Off function is triggered, a Safe Torque Off is managed no matter what
other functions are active.
• Safe Stop 1 has medium priority to the other safe functions.
• Safely Limited Speed has the lowest priority.
If 2 Safe Stop 1 functions are active at the same time, the function with the steepest ramp has higher priority than the function with the
less steep ramp.
If 2 safely limited speed functions are active at the same time, the function with the lowest speed limit has higher priority than the
function with higher speed limit.
If 2 equal safety functions have to be configured, they must be parameterized as SS1-a and SS1-b, or as SLS-a and SLS.b.
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Functions and Systems Overview
AQ279747441421en-000101 / 130R0292