Sqs - Safe Quick Stop; Introduction To The Sqs Function - Danfoss Vacon OPTEA Operating Manual

VACON® NXP Advanced Safety Options
Operating Guide
Logical level
SS2 Request
Speed
Zero speed
Position deviation
Logical level
SS2 Active
SOS Reached
SS2 Reached
STO Active
Reset
Illustration 46: The SS2 and SOS Signals in a SOS Violation Case

6.2.5 SQS - Safe Quick Stop

6.2.5.1 Introduction to the SQS Function

The SQS function has 3 modes: SQS-STO, SQS-SS1, and SQS-SS2. The behavior of these modes is the same as the corresponding
independent function.
Ramps for SQS-SS1 and SQS-SS2 are set independently of other ramp definitions. For the STO(+SBC) function and the SOS function,
the parameters of the individual functions are also used if they are activated as part of the SQS function.
The Safe Quick Stop (SQS) safety function becomes active as the violation response for these safety functions: SLS, SSR, SMS.
The parameters of the SQS safety function are described in
84 | Danfoss A/S © 2021.06
SS2 td1
SS2 td2
Revolution
8.7 SQS Parameters.
Violation
SOS
Limit
AQ319736045637en-000101 / DPD01798
Safety Functions
t
t
t
t
t
t
t
t