Safety engineering
Safety functions
Ramp monitoring SS1/SS2
1
65
EDS94AYAE EN 6.0
2
SS1/
SS2
STO
0
0
I
I
t1 t2
t
S
t
t
t
n
0
1
t
V
n
+
t1
t
0
I
0
SM301DIA RUESS2
Input signal of the request of a safety function
I ON state
0 OFF state
Speed characteristic n of the motor
l Speed−monitored up to SM301 V1.2
l Position−monitored as of SM301 V1.3
l Optional: Monitoring of the brake ramp as of SM301 V1.4
n
+
Start offset ramp
t Time axis
tx Action instant
tS Monitored stopping time
tV S−ramp time
–– Normal operation
−−− Incorrect operation
Feedback(s)
If the speed exceeds the parameterised brake ramp, an error message is triggered and an error
stop is initiated.
Codes
C15305 SS1, SS2: Stopping time
UNSIGNED_16 9270
d
= 2436
h
Stopping time for the SS1 and SS2 safety functions
Setting range
(min. value | unit | max. value) Information
0 MS 30000 Lenze: 0, increment: 2 ms
þ Read access Write access o Controller inhibit o PLC-STOP o No transfer
C15310 Tolerance window (n=0)
INTEGER_16 9265
d
= 2431
h
Safely monitored tolerance window for zero speed
Setting range
(min. value | unit | max. value) Information
0 rpm 16000 Lenze: 0
þ Read access Write access o Controller inhibit o PLC-STOP o No transfer
C15315 SS1, SS2: ramp monitoring
UNSIGNED_8 9260
d
= 242C
h
Selection whether the brake ramp is to be monitored when SS1 and SS2 are executed.
Selection list
(Lenze setting bold) Information
0 No ramp monitoring
(From SM301 V1.4)
1 Ramp monitoring is activated
þ Read access Write access o Controller inhibit o PLC-STOP o No transfer
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