2
01
9-
12
18
Functional Safety KFD2-RSH-1.2E.L*(-Y1)
Operation
5.2
Proof Test Procedure
This section describes a possible proof test procedure. The user is not obliged to use
this proposal. The user may consider different concepts with an individual determination
of the respective effectiveness, e. g. concepts according to NA106:2018.
According to IEC/EN 61508-2 a recurring proof test shall be undertaken to reveal potential
dangerous failures that are not detected otherwise.
Check the function of the subsystem at periodic intervals depending on the applied PFD
avg
in accordance with the characteristic safety values. See chapter 3.4.
The internal fault detection may be used to implement a proof test. The diagnostic coverage
is then counting as the proof test coverage. See chapter 3.4.
It is under the responsibility of the plant operator to define the type of proof test and the interval
time period.
Conditions
If the conditions are met, you can also check the device in the application.
KFD2-RSH-1.2E.L2(-Y1)
KFD2-RSH-1.2E.L3(-Y1)
Load power supply
> 5 V DC
> 35.5 V AC
Device power supply (LED
PWR is on)
24 V DC
24 V DC
Output load
13.2
< R < 7.3 k
39.2
< R < 45 k
Current through load
14 mA < I < 1.9 A
13.5 mA AC < I < 4.9 A AC
Input current
36 mA
36 mA
Table 5.1
