After you have made changes in the systems that request safety functions or react to output data from the option board (via safe
fieldbus or digital output), the safety system should always be revalidated. Refer to the instructions of the changed component(s)
and 9.3 Validating the Parameter File.
The level of testing that is adequate after a component has been changed depends on the application. The tests mentioned in this
chapter do not take into account the overall system and application. A reduced validation of the system may or may not be possi-
ble. When in doubt, consider a total recommissioning of the related features.
Table 85: Tests after Changing the Drive Related Components
The hardware of the
control board
Retest the STO safety function.
If estimated speed is used, retest the safe monitoring functions.
The software of the
control board
Retest features that have relations in the control board. These can be related, for example, to the realiza-
tion of safety function limits or the safe fieldbus.
If estimated speed is used, retest the safe monitoring functions.
Retest safety functions that have relations in the drive application. These can be, for example, execution
of controlled stop ramps for the SS1, SS2, or SQS safety functions or realization of a speed limit for a safe
monitoring function.
The power unit of the
drive
Retest the STO safety function.
If estimated speed is used, retest the safe monitoring functions.
Retest safety features that have relation to that option board. Example safe fieldbus when changing a
fieldbus related option board. When you change the STO option board, retest the STO safety function.
Check the speed sensor settings in the parameter file. Retest speed-dependent safety functions.
10.8 Disposal
When the drive is at the end of its operation life, do not discard it as a part of municipal waste. Recycle the primary components of
the drive. You must disassemble some components before the different materials can be removed. Recycle the electrical and elec-
tronic components as waste. To make sure that the waste is recycled correctly, send the waste to a recycling center. The waste can
also be sent back to the manufacturer. Obey the local and other applicable regulations.
If the option board is decommissioned or disposed due to a suspected failure of the option board, contact the manufacturer to
report the incident and to ask if it is necessary to return the option board to the manufacturer for further analysis.
AQ319736045637en-000101 / DPD01798144 | Danfoss A/S © 2021.06
Operation and Maintenance
VACON® NXP Advanced Safety Options
Operating Guide
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