Contents and general instructions
XXIV
Festo P.BE-CPX-FVDA-P2-EN en 1209NH English
Product-specific terms and abbreviations
Term/abbreviation
Significance
Acknowledgment
Signal or procedure for depassivation. Through acknowledgment, the user
confirms that the module can be reentered or the output channel
depassivated without danger.
If the complete module is passivated, acknowledgment is made through
regular reentry (standard process of PROFIsafe).
If an output channel is passivated (channel-wise passivation),
acknowledgment takes place through an acknowledgment signal of the
process image (
section 1.2.3).
Black channel
The transmission channels of PROFIBUS and PROFINET IO are not
influenced by PROFIsafe. They do not have to be looked at more closely
with regard to PROFIsafe and are therefore designated “black channels”.
Channel
Output channel
Channel-wise
passivation
Passivation type in which only the faulty output channel involved is
passivated. The module remains integrated. Acknowledgment takes place
in CPX-FVDA-P2 via the process image (
section 1.2.3).
CRC signature
Check value in the safety telegram of PROFIsafe for checking the integrity
of the telegram data (cyclic redundancy check).
Cross circuit
Accidental bypasses in switches, e.g. between 0 V and FE. These can be
caused, for example, by cable squeezes and unallowed currents in
switches. If, for example, 0 V and FE are connected to each other in the
system power supply, a cross circuit between the 0 V current path and FE
behind the M-switch results in bypassing the switch. The switch thus
becomes ineffective. In a similar way, a cross circuit can result in bypassing
the P-switch.
Cross-circuit
monitoring
Function that detects possible cross currents in the device's own circuits
and switches the device or the output channel into a safe status. This
prevents undesired switching of the load due to impermissible cross
currents.
Depassivation
Reentry or passivation (opposite)
F-Device
Collective name for safety-related devices
F-Host
Safety controller for control of safety-related devices
Forced dynamisation
Procedure for function checking of a device’s switching capability.
The effectiveness of the P- and M-switches of the output module
CPX-FVDA-P2 are checked cyclically for their operational capability.
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Страница 75: ...Installation 2 1 Festo P BE CPX FVDA P2 EN en 1209NH English Chapter 2 Installation...
Страница 91: ...Commissioning 3 1 Festo P BE CPX FVDA P2 EN en 1209NH English Chapter 3 Commissioning...
Страница 112: ...3 Commissioning 3 22 Festo P BE CPX FVDA P2 EN en 1209NH English...
Страница 113: ...Operation 4 1 Festo P BE CPX FVDA P2 EN en 1209NH English Chapter 4 Operation...
Страница 117: ...Diagnostics and error handling 5 1 Festo P BE CPX FVDA P2 EN en 1209NH English Chapter 5 Diagnostics and error handling...
Страница 129: ...Service repair disposal 6 1 Festo P BE CPX FVDA P2 EN en 1209NH English Chapter 6 Service repair disposal...
Страница 133: ...Technical appendix A 1 Festo P BE CPX FVDA P2 EN en 1209NH English Appendix A Technical appendix...
Страница 143: ...Index B 1 Festo P BE CPX FVDA P2 EN en 1209NH English Appendix B Index...
Страница 144: ...B Index B 2 Festo P BE CPX FVDA P2 EN en 1209NH English Table of contents B Index B 1...
Страница 150: ...B Index B 8 Festo P BE CPX FVDA P2 EN en 1209NH English W Wire break 3 12 5 4...