Outputs; Sil And Pl For Tc 1, Tc 2, Tc 3 - Honeywell TC Series Technical Information

Safety information in accordance with EN 61508-2 for TC 1, TC 2, TC 3

8 .2 .4 Outputs

Safety interlock /OK enable signal
at 230/120 V AC mains voltage, max. 3 A resistive load,
at 24 V DC mains voltage, max. 5 A resistive load.
Valve outputs V1 and V2
at 230/120 V AC mains voltage, max. 3 A resistive load,
OK
at 24 V DC mains voltage, max. 5 A resistive load.
OK
Fault signal
at 24 V DC, 120 V AC or 230 V AC mains voltage and
control voltage:
V1
max. 5 A resistive load,
V1
at 120 V AC/230 V AC mains voltage and 24 V DC con-
V2
trol voltage: max. 100 mA.
V2

8 .3 SIL and PL for TC 1, TC 2, TC 3

Safety function
The basic safety function of the TC 1, TC 2, TC 3 is to
check that automatic shut-off valves have closed effec-
tively by detecting leakage.
Classification
Class C regulating and control functions
Demand mode
High demand mode pursuant to IEC 61508-4
Hardware Fault Tolerance HFT
HFT: N = 0
TC · Edition 08.17
SIL Safety Integrity Level/PL Performance Level
See page 48 (Safety-specific characteristic values).
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