11 Appendix
11.1 Abbreviations and Conventions
Blank initial
state
The blank initial state is the state of the safety
option when it leaves the factory with default
settings.
Cat.
Category (EN ISO 13849-1).
CCF
Common cause failure (IEC 61508, IEC 62061, EN
61511-1, EN ISO 13849-1).
CCW
Counterclockwise .
CW
Clockwise.
DC
Diagnostic coverage (EN ISO 13849-1, IEC
62061(IEC 61508-2)).
Degree of
protection
The degree of protection is a standardised
specification for electrical equipment that
describes the protection against the ingress of
foreign objects and water (for example: IP20).
DIx
DI1: Digital Input 1.
DI2: Digital Input 2.
EMC
Electromagnetic compatibility.
Error
Discrepancy between a computed, observed or
measured value or condition and the specified or
theoretically correct value or condition. .
Error class
Classification of errors into groups. The different
error classes allow for specific responses to
errors, for example by severity.
F-DIO
Fail safe digital input and output.
F-PLC
Fail safe PLC.
Fatal error
An error that makes the product unable to
function.
GSD
General station description. A GSD file contains
characteristics of an IO device.
MTTF/MTTFd
Mean time to failure/Mean time to dangerous
failure (EN ISO 13849-1).
OSSD
Output signal switching device (EN 61496-1).
Parameter
Device data and values that can be read and set
(to a certain extent) by the user.
PDS(SR)
Power drive system (safety related).
PELV
Protective extra low voltage, low voltage with
isolation. For more information: IEC 60364-4-41
or IEC 60204-1.
PFD
Probability of failure on demand (IEC 61508, IEC
62061).
PFH
Probability of failure per hour (IEC 62061 and
IEC61508).
PLC
Programmable logic controller.
PL/
Performance
Level
Discrete level used to specify the ability of
safety-related parts of control systems to perform
a safety function under foreseeable conditions
(EN ISO 13849-1).
PSD
PROFIsafe driver.
PUST
Power up self test. Internal self test on the safety
option.
RS-485
Fieldbus interface as per EIA-422/485 Bus
Description, which enables serial data
transmission with multiple devices.
Safe state
The safety option goes to a safe state if it
detects an error.
SF
Safe function.
SIL
Safety integrity level (IEC61508, IEC61800-5-2,
IEC62061).
SO
Safety Option.
SRECS
Safety related electrical control system (IEC
62061).
SRP/CS
Safety related parts of control systems (EN ISO
13849-1).
STO - Safe
Torque Off
Safety function in accordance with EN IEC
61800-5-2, prevents torque from being generated
by the motor. This function is integrated within
the frequency converter as standard. STO is the
abbreviation for Safe Torque Off. .
TIA
Totally integrated automation.
TM
Mission time (EN ISO 13849-1).
Warning
If the term is used outside the context of safety
instructions, a warning alerts to a potential
problem that was detected by a monitoring
function. A warning does not cause a transition
of the operating state.
Table 11.1 Abbreviations
Conventions
•
Numbered lists indicate procedures.
•
Bullet lists indicate other information and
description of illustrations.
•
Italicised text indicates:
-
cross reference
-
link
-
footnote
-
parameter name, parameter group
name, parameter option
•
All dimensions are in mm (inch).
•
MCB 15x refers to all variants of Safety Option
MCB (MCB 150, MCB 151, MCB 152).
Appendix
Operating Instructions
MG37F102
Danfoss A/S © 10/2014 All rights reserved.
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