Siemens FST020 - Page 89

Setup
3.4 Inputs and outputs
FST020 Function manual
Function Manual, 09/2017, A5E42949526-AA
87
3.4.3.4.10 Fail-safe behaviour
Description
Current output reaction in case of a fault.
Setting
Last valid value; Hold; Current value; Fail-safe value
Default
Last valid value
Related
Path
Setup → Inputs and outputs → Channel 4 - input/output → Pulse output → Fail safe behav-
iour
3.4.3.4.11 Fail-safe value
Description
Output value in case of a fault and when fail-safe behaviour configured to Fail-safe value.
Setting
0.0 pulses/s to 12500.0 pulses/s
Default
1.0 pulses/s
Related
Path
Setup → Inputs and outputs → Channel 4 - input/output → Pulse output → Fail-safe value
3.4.3.4.12 Fail-safe minimum time
Description
Minimum time the output stays in fail safe mode.
Setting
0 s to 100 s
Default
0 s
Related
Path
Setup → Inputs and outputs → Channel 4 - input/output → Pulse output → Fail-
safe minimum
time