Safety Data; Without An Fso Module; With An Fso Module - ABB ACS880 User Manual

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


Customer
motor Pt100
sensors
SIL
HFT
T1
PFD (3, 5 or 8 relays)

With an FSO module


Customer
motor Pt100
sensors
*)
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
HFT
T1
PFD (3, 5 or 8 relays)
Pt100 relay(s)
K71.1...3
(K72.1...2)
(K73.1...3)
1
0
1 year
4.02E-4
Extension
Pt100 relay(s)
K71.1...3
(K72.1...3)
(K73.1...3)
1
0
1 year
5.85E-4
Extension
relay(s)
A81
(A82)
(A83)
relay(s)
FSO module
A81
FSE module
(A82)
(optional)
(A83)
Drive STO
Drive STO
*)