Terms And Abbreviations - Danfoss Vacon OPTEA Operating Manual

VACON® NXP Advanced Safety Options
Operating Guide

1.6 Terms and Abbreviations

Table 2: Symbols and Abbreviations
Abbreviation Definition
Admin The highest user level for accessing the Advanced safety option board functions. Identified via a pass-
word.
Acknowledgment A signal that indicates that a safety function can be deactivated. Valid for safety functions that use man-
ual acknowledgment.
ASM An asynchronous motor
Continuous mode Safety function is active as a part of normal operation.
CRC Cyclic Redundancy Check
CW Control word
DAT Device Acknowledgment Time
Diagnostic Coverage The coverage of dangerous failures by run-time diagnostics.
(DC)
EMC Electromagnetic compatibility
Encoder interface An option board that has an encoder interface.
board
F-Device A communication peer that can perform the PROFIsafe protocol.
F-Host A data processing unit that can perform the PROFIsafe protocol and service the "black channel".
FMEA Failure Mode and Effects Analysis
Critical fault A fault that causes the option board to enter into a fault state and requires a reboot to be reset.
GSD Generic Station Description (used with PROFIBUS).
GSDML General Station Description Markup Language (used with PROFINET).
Hardware Fault Tol- The number of hardware failures that the safety system can tolerate without the loss of the safety func-
erance (HFT) tion.
HAT Host Acknowledgment Time.
High demand mode Safety functions are performed on demand. The frequency of demand is more than once a year.
HTL High Threshold Logic. A voltage level definition.
I/O Input/Output
Low demand mode Safety functions are performed on demand. The frequency of demand is less than once a year.
MTTF Mean Time To Failure
OPTAF An option board that handles the activation of the STO function for the AC drive.
OPTBL, OPTBM, The variants of the Advanced safety option. OPTBL: no encoder interface. OPTBM: with digital pulse type
OPTBN encoder interface board. OPTBN: with Sin/Cos type encoder interface board.
OPTE3/5 Option board that handles the PROFIBUS DP interface.
OPTEA Option board that handles the PROFINET IO interface.
16 | Danfoss A/S © 2021.06
Introduction
AQ319736045637en-000101 / DPD01798