113
2121331-04-04/19 (Translation of the original operating instructions)
Operating Instructions
Modular Safety Control System MSC
EN
9.2.2.18. Testable safety device (TESTABLE SAFETY DEVICE)
Using the TESTABLE SAFETY DEVICE function block the input status of a single-channel or a dual-channel safety sensor
(both normally closed contacts and normally open contacts) is checked. Refer to the following tables for the sensor type
and behavior:
Figure 113: Testable safety device
Single normally closed contact
Figure 114: NC
IN
OUT
0
0
1
1
Table 61: Status table NC
Single normally open contact
Figure 115: NO
IN
OUT
0
0
1
1
Table 62: Status table NO
Double NC
Figure 116: Dual-channel NC
IN1
IN2
OUT
Contemporaneity error *
0
0
0
-
0
1
0
X
1
0
0
X
1
1
1
X
Table 63: Status table dual-channel NC
Double NC-NO
Figure 117: Dual-channel NC-NO
IN1
IN2
OUT
Contemporaneity error *
0
0
0
X
0
1
0
-
1
0
1
-
1
1
0
X
Table 64: Status table dual-channel NC-NO
* Contemporaneity error = max. time between the switching of the individual contacts has been exceeded.
Summary of Contents for MSC
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