Installation manual
PSC1-C-10 Installation manual V2.6
Page 121 of 173
Version: 57E
6.2
Response times for FAST_CHANNEL
FAST_CHANNEL refers to a property of the PSC1 to react faster to speed requirements than is possible
on processing the safety program in the normal cycle (= 8 ms). The sampling time of the
FAST_CHANNEL is 2 ms.
The following response times can be stated:
•
4 ms (worst-case condition)
Safety instructions:
•
On the usage of the FAST_CHANNEL it is to be noted that a shutdown in the time stated above
for a specified speed threshold can only occur if the sensor information is of adequate
resolution. The smallest resolvable switching threshold for the FAST_CHANNEL requires at
least 2 edge changes on the selected sensor system within a time of 2 ms.
•
This function is only possible on the usage of safe semiconductor outputs.
•
The FAST_CHANNEL must not act on SSI listeners
