Pilz PMCprotego D.72/000/0/0/2/208-480VAC - Manual (Page 54)

4.3 Control element
4 Function Description
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Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]
4-20
][Funktion_STO_ohne_Sicherheitskarte_5_D48
Function test
The function test on the safe pulse disabler tests both the shutdown
routes STO1 and STO2 consecutively, as shown in the following timing
diagram.
Legend:
 STO1-ENABLE: Digital input, 1st shutdown route for shutting down
the pulse disabler safely
 STO2-ENABLE: Digital input, 2nd shutdown route for shutting down
the pulse disabler safely
 STO1-STATUS: Digital output, switch status STO1
STO dual-channel
The signals STO1-STATUS and STO2-STATUS
must be evaluated.
INFORMATION
When evaluating the output signals STO1-STATUS and STO2-
STATUS, please note the delay time td = 47 ms.
24 V
STO1-ENABLE
STO2-ENABLE
7
5
PMCprotego D.x
24 V STO
STO
X4
POWER 3
STO1-STATUS
8
STO1-Feedback
STO2-STATUS
6
STO2-Feedback
STO2-ENABLE
X4/5
1
0
1
0
1
0
STO1-ENABLE
X4/7
STO1-STATUS
X4/8
t
STO1
1
0
STO2-STATUS
X4/6
td = 47 ms
STO2
td = 47 ms