532 Technical data
Hardware diagnostics results, summary
Response times
FIT rate summary Total λ
sd
λ
su
λ
dd
λ
du
MTTF
D
[FIT] [FIT] [FIT] [FIT] [FIT] [a]
FSO-xx 309.2 0.0 19.7 197.6 91.9 1242.2
FSE-31 5.8 0.0 2.9 0.0 2.9 39262.1
Speed estimate 790.0 0.0 116.3 0.0 673.6 169.5
3AXD10001287182 C
Safety function response time ACS880 drives: Maximum response time of the FB
module (FPNO or FENA), FSO, FSE and drive
combination is 100 ms.
DCS880 drives: Maximum response time is 550 ms.
Note: Mute time usage increases the response time.
FSO-21 response time
• from an FSO input to an FSO digital
output activation
Maximum 35 ms
Cascade response time
• from FSO's STO activation to the
cascade output activation
Maximum 35 ms
• from the cascade input to the
cascade output activation
Maximum 35 ms
If the STO is cascaded, safety function response
time for the cascaded units is (n-1) × 35 ms + 100
ms, where n is the number of cascaded FSO
modules.
PROFIsafe
• Worst-case delay time (WCDT) 54 ms (FSO and FB module combination)
• Device acknowledgement time (DAT) 54 ms