Sensor Function Test - Siemens SIDOOR ATD401W System Manual

4.7.2

Sensor function test

Equipment for a periodic test is required if type 2 ESPE or a pressure-sensitive edge is
connected. This test is intended to detect a hazardous failure. If the SIDOOR controller's
sensor logic is configured for ESPE or a pressure-sensitive edge, the "TestOUT" function
test signal is output automatically at the terminal X100.1 or X12.
As soon as the system actively leaves the "closed" end stop (by door command) in normal
mode, a function test signal is generated automatically.
The appropriate configuration results in the following minimum test sequence duration:
t
test,min
The fault "8" is generated if the test operation fails. This fault must be acknowledged in
accordance with the sequential control (cf. Fault management (Page 274)).
The figure below describes the timing of the "TestOUT" function test signal generated by the
SIDOOR controller and the timing requirements for the OSSD signal of the ESPE.
①
②
t ; t
1 2
t
reaction
t
discrep-
ancy
③
Figure 4-6
ATD4xxW Door Controller for Industrial Applications
System Manual, 01/2017, A5E38080677-AB
= 2 × (t + t
reaction discrepancy,min
Protective equipment is fault-free
A fault occurs when controlling the protective equipment
t = t = t + t
1 2 reaction discrepancy
Internal reaction time and switching times
Discrepancy time of the OSSD t
Test point, evaluation of the OSSD signal
Signal profile 1 "low level" → fault-free
•
Signal profile 2 "high level" → fault
•
Sensor function test
4.7 Sensors and external sensor interface module
)
= p4601
discrepancy
Controllers
155