Sls - Danfoss Vacon OPTEA Operating Manual

VACON® NXP Advanced Safety Options
Operating Guide
Abbreviation Definition
STO Safe Torque Off. A safety function according to EN IEC 61800-5-2.
SS1 Safe Stop 1. A safety function according to EN IEC 61800-5-2.
SS2 Safe Stop 2. A safety function according to EN IEC 61800-5-2.
SQS Safe Quick Stop. A manufacturer-specific safety function. Used as a violation response for safe monitoring
functions. Parameterizable to behave as the STO, SS1 or SS2 function.
SQS-STO, SQS-SS1, Used to indicate the STO, SS1 or SS2 function as the selected behavior of the SQS function.
SQS-SS2

SLS

Safe Limited Speed. A safety function according to EN IEC 61800-5-2.
SSR Safe Speed Range. A safety function according to EN IEC 61800-5-2.
SSM Safe Speed Monitor. A safety function according to EN IEC 61800-5-2.
SMS Safe Maximum Speed. A manufacturer-specific safety function.
SBC Safe Brake Control. A safety function according to EN IEC 61800-5-2.
SOS Safe Operating Stop. A safety function according to EN IEC 61800-5-2.
SIL Safety Integrity Level
SW Status word
TTL Transistor-Transistor Logic. A voltage level definition.
Violation A fault caused by a safety function detecting a violation of the monitored value(s). The value monitored
by a safety function has exceeded the set limit for that value.
Violation response A reaction to a violation. It is the STO function for the safe stopping functions, and the SQS function for
the safe monitoring functions.
WCDT Worst Case Delay Time
WDTime Watchdog Time
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Introduction
AQ319736045637en-000101 / DPD01798