
Safety engineering
Safety functions
Safely limited speed
48
EDS94AYAF EN 1.0
1.3.9
Safely limited speed
1.3.9.1
Description
S
afely
L
imited
S
peed/SLS
S
afe
M
aximum
S
peed / SMS
After the speed has fallen below the threshold or the adjustable braking time has elapsed,
the function monitors the compliance with the limited speed N
lim
.
ƒ
Four different speeds can be monitored (SLS1 ... SLS4).
When operating within the limit values, the "SLSx monitored" status is set. The status can
be assigned to the safe output. The status can also be reported via the safety bus. A
feedback takes place as soon as it has been detected that the speed has fallen below the
threshold.
When the monitored speed is exceeded, a stop error is caused. STO, SS1 or SS2
(C15332/1...4) can be adjusted. If the speed is not within the limit values even after the
adjustable response time, the drive will be directly switched off (STO).
1.3.9.2
Fault analysis
The fault analysis is described with the SMS function (