Keba CDF3000, Operation Manual

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Operating Instructions CDF3000
3 Installation
EUC risk:
Risk resulting from the EUC or its interaction with the EUC operating
equipment.
PFH (Probability of Failure per Hour)
Probability of Failure per Hour, in respect of a hazardous random hard-
ware failure.
Safety function
Function performed by an E/E/PE (electrical/electronic/programmable
electronic) safetyrelated system, a safety-related system of other technol-
ogy or external equipment for risk minimization, with the goal of attaining
and maintaining a safe state for the EUC, taking into account a particular
undesired event.
Validation
Affirmation that the special requirements for a certain purpose of use are
fulfilled by investigation and the submission of objective proof.
Validation describes the activity to prove that the safety-related system
under investigation meets the specified safety requirements of the safety-
related system in every respect, before or after installation.
Positive opening operation of a contact element
Symbol for positive opening operation according to EN 60947-5-1 annex
K
In a positive opening operation of a contact element, the contact separa-
tion is achieved as a direct result of a certain movement of the actuating
element caused by non-elastic links (no springs).
Safety circuit
A safety circuit is designed with two channels and has been approved by
accredited testing bodies on the basis of the standards. There are a large
number of manufacturers offering a vast variety of safety circuits for vari-
ous applications.
3.10.3 Description of
function
The positioning controllers CDE3000 and CDB3000, SH support the
"STO" (Safe Torque Off) safety function according to the requirements of
EN 61800-5-2, EN ISO 13849-1 "PL e" and EN 61508 / EN 62061 "SIL3".