Introduction to the manual 23
B
10d
Number of cycles until 10% of the components fail dangerously (for
pneumatic and electromechanical components). (EN ISO 13849-1)
Black channel Communication channel that is not safe as it has not been designed
and/or validated according to IEC 61508. The reliability of the
connection can be secured with an additional security protocol, for
example PROFIsafe, on top of the black channel.
Cat. Classification of the safety-related parts of a control system. The
categories are: B, 1, 2, 3 and 4. (EN ISO 13849-1)
CCF Common cause failure (EN ISO 13849-1)
Common cause
failure (CCF)
Failure, which is the result of one or more events, causing coincident
failures of two or more separate channels in a multiple channel
(redundant architecture) subsystem, leading to failure of a Safety
related electronic control function (SRCF).
Communication
module
Communication module is a name for a device (eg, a fieldbus adapter)
through which the drive is connected to an external communication
network (eg, a fieldbus). The communication with the module is
activated with a drive parameter.
Controller Control system with bus initiative (master). In PROFINET IO
terminology, controller stations are also called active stations.
Control word 16-bit word from controller to device with bit-coded control signals
(sometimes called the Command word).
CRC Cyclic redundancy check
Cyclic
communication
Communication in which parameter/process data objects are sent
cyclically at predefined intervals
DAT Device acknowledgement time
DC Diagnostic coverage (%) (EN ISO 13849-1), Direct current
Device Passive bus participant. In PROFINET IO terminology, device stations
(or slaves) are also called passive stations. Also referred to as nodes.
DI Digital input
DO Digital output
E-stop Emergency stop
ELV Extra-low voltage
EMC Electromagnetic compatibility
External active load Load that has the capability to accelerate the speed of the motor, for
example, gravity or spring based load.
Factory reset See Reset
Fail-safe mode The FSO module has activated the drive STO function as a result of an
error (in some cases, after a delay). To exit this mode and continue
normal operation, reboot the FSO module.
Term /
Abbreviation
Description
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