Safety Instructions; General Safety Notes - Siemens SIRIUS 3TK2810-0 Equipment Manual

Safety instructions

2.1

General safety notes

Note
SIL 3 according to IEC 62061
PL e / Cat. 4 according to ISO 13849-1
The 3TK2810-0 safety relays are designed so that applications up to SIL 3 according to
IEC 62061 / PL e according to ISO 13849‑1 can be implemented.
Hazardous voltage.
Can cause death, serious injury, or property damage.
Hazardous electrical voltage can cause electric shock, burns and damage.
• Turn off and lock out all power supplying the system and device before working on the
Loss of the safety functions due to missing function test.
Can cause death, serious injury, or property damage.
In accordance with RFU CNB/M/11.050, when using actuators such as 3SK1 output expansions,
contactors or relays in continuous operation in factory automation applications, a function test
interval (shutdown test) ≤ 1 year for SIL 2 according to IEC 62061 or PL d with Cat. 3 according
to ISO 13849 is required. A period ≤ 1 month for SIL 3 according to IEC 62061 or PL e with Cat. 3
or Cat. 4 according to ISO 13849 applies. Only then do the safety characteristic values apply.
Exception: A function test interval ≤ 1 year is also permissible for SIL3 applications in the
process industry (in accordance with IEC 61511), exclusively for low-demand use, due to a
significantly lower failure rate probability of the electromechanical components. This does not
apply to safety-related applications in accordance with the Machinery Directive 2006/42/EC.
Function test procedure for actuators with contacts:
• Actuate the connected sensors.
• Check their effect on the safety relay and the downstream actuators*.
• Activate the safety relay via the connected sensors.
• Check their effect on the safety relay and the downstream actuators*.
• Defective devices must be replaced.
*Since the read-back time of the delayable output functions is retriggerable, the actuation
duration for switching on and off for the regular function test must be longer than the time set
in the "Switching time" parameter. Only in this way can it be ensured that the expected
switching state has also been set on the connected actuator.
3TK2810-0 standstill monitor
Equipment Manual, 08/2023, A5E50307927002A/RS-AA/001
WARNING
device.
WARNING
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