Safe Monitoring Functions; Introduction To The Safe Monitoring Functions - Danfoss Vacon OPTEA Operating Manual

VACON® NXP Advanced Safety Options
Operating Guide
Logical level
SSR Request
Speed
SSR Max Limit
SSR Min Limit
Logical level
SSR Active
SSR Reached
SQS Active
STO Active
& STO Reached
SS2 Active
& SS2 Reached
SQS Reached
SOS Reached
Reset
Illustration 49: The SQS-SS2 Function as a Violation Response to an SSR Speed Violation. The SQS Function Uses Time Monitoring Mode. The
SS2 Signals are not Used with the SQS-SS2 Mode.

6.3 Safe Monitoring Functions

6.3.1 Introduction to the Safe Monitoring Functions

The safe monitoring functions are used to monitor the speed, the position, or the acceleration of the motor. Most safe monitoring
functions do not take into account the direction of the movement, but only the absolute value.
The safe monitoring functions that do not take into account the direction of movement
• SLS
• SSM
• SSR
Danfoss A/S © 2021.06
Violation
SQS t1
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Safety Functions
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