Lenze i950

19.20 Cascading (CAS)
This funcon allows for the synchronised shutdown of an enre drive network.
Precondions
•
As sour
ce for the cascading request, the SD-In4 input must be parameterised.
0x21240x2124, 4: SD-In4
•
As an acve input for the "Emergency stop" funcon and the input delay, a value ≤ 10 ms
mus
t be parameterised for SD-In4. Safe inputs
•
As execung stop funcon, the "Safe torque o (STO)" funcon must be parameterised.
Safe Emergency Stop (SSE) 0x28A3:001 ^ 400
•
As restart behaviour of the drive aer execung Safe Torque O (STO), "Acknowledged
restart" must be parameterised. 0x2892:0010x2892:001
•
The control of the SD-Out1 output via a parameterised safety bus must be inhibited. Safety
bus
The plausibility check rejects other sengs
unl the plausibility check is para-
meterised correctly.
•
If the c
ascading safety
funcon is used in connecon with special operaon, "SS2" must be
parameterised as stop funcon in the operaon mode selector (OMS).
The STO stop funcon will trigger the "Cascading" funcon. Acvaon by means
of the enable s
witch (ES) is not possible.
Descripon of the principle
SD-Out1
SD-In4
i950 #1 i950 #2
SD-In4
SD-Out1
i950 #n
SD-In4
SD-Out1
Fig. 83: CAS funcon
With 0x2125:0010x2125:001, the me period is shown, which elapses from switching the SD-
Out1 output to the OFF state to recording the OFF state at the SD-In4 input.
•
If
,
aer a stop, the me period "0 ms" is shown, another safety funcon has triggered the
stop via the cascade.
•
The me period is shown unl the next system acknowledgement takes place.
Acvaon of the funcon
The funcon is acvated by parameterisaon of the SD-In4 input as source for a cascading
request (0x21240x2124, 4: SD-In4).
Parameter
Address Name / seng range / [default seng] Info
0x2124 CAS: Quelle SD-In
•
Read only
0 Deacvated
4 SD-In4
0x2125:001 CAS: Cascading: CAS: Stop delay
•
Read only: x ms
Safety
funcons
Cascading (CAS)
440