Lenze i750 - Page 137

It depends on the applic
aon whether the drive can directly travel to the posion limit
(0x28DE:002) with the limited speed v
max
(0x28DE:008). There could be a risk of exceeding the
posion limit.
Therefore, a safe creep speed (SCS) can addionally be parameterized to slowly approach the
posion limit.
SCS can be set separately for the lower and upper posion limits:
•
SCS for lower posion limit
•
Value for SCS: 0x28DE:006
•
Starng posion for SCS: 0x28DE:004
•
SCS for upper posion limit
•
Value for SCS: 0x28DE:007
•
Starng posion for SCS: 0x28DE:005
Approaching the posion limit with v
ma
x
Approaching the posion limit with safe creep speed (SCS)
v
s
0x28DE:002
v
max
Prohibited
zone
v
s
v
max
0x28DE:004
0x28DE:002
Prohibited
zone
If the moon c
ontrol of the drive is within the monitoring limits, the PDSS posive
observed ... PDSS negave observed status is output.
•
St
atus word: 0x2870:002 Bit 16 ... 0x2870:002 Bit17.
Acvaon of the funcon
•
Via the safety bus. 4Safe network interfaces ^ 149
Error behavior
If the monitoring limits are exceeded, an error message is output and a parameterizable error
s
top is triggered.
Selecon of error stop: 0x28DE:011
Possible error stops:
4Safe torque o (STO) ^ 118
4Sa
fe stop 1 (SS1) ^ 121
4Safe stop 2 (SS2) ^ 123
Funconal sa
fety
Safety funcons
Posion-dependent safe speed (PDSS)
137