Siemens SIDOOR ATD4 W Series - Sensor Function Test

5.7.2 Sensor function test
When an ESPE or pressure sensitive edge is connected, equipment for a periodic test is required.
This test is intended to detect a dangerous failure before the dangerous function is used. If the
SIDOOR control unit's sensor logic is con󹪝gured for an ESPE or pressure sensitive edge, the
"TestOUT" function test signal is output automatically via X100.1 (ATD420W, ATD430W) or X12
(ATD401W), see Relay and 󹪝eld bus interfaces (Page 136).
As soon as the system exits the "opened" end stop active in Normal mode (by door command),
a function test signal is automatically generated.
The appropriate con󹪝guration results in the following minimum test sequence duration:
t
test,min
= 2 × (t
reaction
+ t
discrepancy,min
)
The maximum possible test sequence duration before the test fails corresponds to t
Test
, max = 2
x p4601.
The fault "8" is generated if the test operation fails. This fault must be acknowledged in
accordance with the control unit (cf. Fault management (Page 304)).
The following 󹪝gure describes the timing of the "TestOUT" functional test signal generated by
the SIDOOR control unit and the timing requirements for the ESPE signal from the ESPE.


#84
U

U

5FTU065
① Protective equipment is fault-free
② A fault occurs when controlling the protective equipment
t
1
; t
2
t
1
= t
2
= t
reaction
+ t
discrepancy
t
reaction
Internal reaction time and switching times
t
discrepanc
y
Discrepancy time of the OSSD t
discrepancy
= p4601
③ Test point, evaluation of the OSSD signal
• Signal pro󹪝le 1 "low level" → fault-free
• Signal pro󹪝le 2 "high level" → fault
Figure 5-6 Sensor function test
Controllers
5.7 Sensors and external sensor interface module
ATD4xxW for industrial applications
170 System Manual, 06/2022, A5E51901827B AA