ATEX-certified motor thermal protection function with Pt100 relays (+L514+Q971) 41
Safety data
The safety block diagrams show the components that are included in the safety data
calculations.
Without an FSO module
With an FSO module
*)
The FSE module is included in the calculations only if a safety encoder is used in the application, the FSO-21
module is configured to activate the SS1 function (stop category 1) in overtemperature situations and the ramp
monitoring method is used in the SS1 function.
SIL 1
HFT 0
T1 1 year
PFD (3, 5 or 8 relays) 4.02E-4
SIL 1
HFT 0
T1 1 year
PFD (3, 5 or 8 relays) 5.85E-4
Drive STO
Extension
relay(s)
A81
(A82)
(A83)
Pt100 relay(s)
K71.1…3
(K72.1…2)
(K73.1…3)
Customer
motor Pt100
sensors
Extension
relay(s)
A81
(A82)
(A83)
Pt100 relay(s)
K71.1…3
(K72.1…3)
(K73.1…3)
Customer
motor Pt100
sensors
Drive STO
FSO module
FSE module
(optional)
*)
00 ACS880 ATEX cabinet.book Page 41 Tuesday, May 28, 2019 10:25 AM
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