Safely-limited posion (SLP)
This funcon monit
ors the lower and upper posion limit.
Up to four absolute lower and upper posion limits can be parameterized and monitored.
DANGER!
Uncontrolled r
otaon of the motor possible if no safety rated encoder system is used.
Possible consequence: Death or severe injuries
▶
Use a safety rated encoder system to use this funcon.
Precondions
Homing must be executed. 4Sa
fe homing (SHom) ^ 138
Funconal descripon
t
0
SLP observed
P
STO/SS1/SS2
0x28D2:004
...
0x28D2:001
0x28D3:004
...
0x28D3:001
0x28D4:004
...
0x28D4:001
Fig. 22: SLP funcon
The funcon monit
ors the lower and upper posion limits of the drive:
•
Lower posion limit: 0x28D2:001 ... 0x28D2:004
•
Upper posion limit: 0x28D3:001 ... 0x28D3:004
Aer requesng the funcon, the monitoring is acve immediately.
If the actual posion of the drive is within the monitoring limits, the SLP1 observed ... SLP4
observed status is output.
•
St
atus word: 0x2870:002 Bit 8 ... 0x2870:002 Bit 11.
Acvaon of the funcon
•
Via the safety bus. 4Safe network interfaces ^ 149
Behavior of the funcon in the e
vent of an error
If the monitoring limits are exceeded, an error message is output and a parameterizable error
stop is triggered.
Selecon of error stop: 0x28D4:001 ... 0x28D4:004
Possible error stops:
4Safe torque o (STO) ^ 118
4Sa
fe stop 1 (SS1) ^ 121
4Safe stop 2 (SS2) ^ 123
Funconal sa
fety
Safety funcons
Safely-limited posion (SLP)
135