13 Configuration Examples
13.1 General Information
This chapter lists configuration examples of the Advanced safety option board for implementing different safety functions.
The examples are informational and do not guarantee the achievement of any safety levels. The examples show different possibili-
ties to use the option board. The examples do not take into account the external devices and their exact behavior. To implement an
actual safety system, it is necessary to make proper preparations and analysis on the requirements of the safety system and to have
an understanding on all the devices that are used in the implementation. Also see 3.4 Determining the Achieved Safety Level.
13.2 Emergency Stop Using the STO Function
This is an example configuration for realizing emergency stop according to IEC-60204-1 using the STO function in the Advanced
safety option board OPTBL and the STO option board OPTAF. The drive reset is used to clear the faults and to deactivate the STO
function after violations and faults. The STO function is set to the manual acknowledgment mode.
Depending on the result of the risk and hazard analysis, you can use the safe external acknowledgment signal 1) or the non-safe
drive acknowledgment 2). The case in Illustration 77 has safe external acknowledgment.
The STO request is assigned to Digital Input 1 of the Advanced safety option board. External acknowledgment signal is assigned to
Digital input 2. No speed measurement is needed or considered for this configuration.
Table 99: Configuration in OPTBL. Used Safety Functions: STO
Acknowledgment Mode (STO)
Table 100: Input/Output Parameters
Table 101: General Parameters
1) and 2) indicate alternative options. Use values marked with the same number.
AQ319736045637en-000101 / DPD01798 | 173Danfoss A/S © 2021.06
Configuration Examples
VACON® NXP Advanced Safety Options
Operating Guide
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