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7
SRB-E-402ST
Operating instructions
Safety-monitoring module
EN
7.3 Start configuration
7.3.1 External reset button
• Manual start or activation of the module occurs when the button is
released.
Monitoring of max. actuation time 0.03 sec. … 3 sec.
If the time is exceeded, the module cannot be started!
7.3.2 Reset without monitoring / autostart
• The manual start or the activation of the module occurs when the
button is pressed (not when it is released!).
• With autostart, X2 / X4 must be bridged to S11, S21, S31, S41 or
+24 VDC
Not admitted without additional measure due to the risk of
gaining access by stepping behind!
Within the meaning of IEC/EN 60204-1 paragraph 9.2.5.4.2
the operating mode "automatic start" is only restrictedly
admissible. In particular, any inadvertent restart of the
machine must be prevented by other suitable measures.
X2
J
S11/S21
X2
+24
VDC
J
X4
J
S31/S41
X4
+24
VDC
J
Reset button
(detection of the trailing edge)
Reset without monitoring /
autostart
Rotary knob position 1
Rotary knob position 6
Rotary knob position 2
Rotary knob position 7
Rotary knob position 3
Rotary knob position 8
Rotary knob position 4
Rotary knob position 9
Rotary knob position 5
Rotary knob position 10
7.4 Feedback circuit / Release signal
• Suitable for increase in capacity or number of contacts by means of
contactors or relays with positive-guided contacts. If the feedback
circuit is not required, establish a bridge.
X3
S11/S21
X3
+24
VDC
K
B
K
A
K
B
K
A
X5
S31/S41
X5
+24
VDC
K
D
K
C
K
D
K
C
• The safety outputs Q1 and Q2 can be switched during operation
via the safety input X7 with the guard system closed.
• For safety-orientated use, a fault in the wiring (short circuit to 24 V
potential) must be able to be excluded!
• If no deactivation during operation is required, this input must be
switched to + 24 VDC.
X7
X7
+24
VDC
= control signal
Wiring example SRB-E-402ST
0V / GND
R
H2
X7
X3
A1
S22
S11
A2
S21
X2
Q1 Q2
Y1
S12
KC
KD
+24VDC
KA
KB
KA
KB
F1
S42
S31 S41
S32
K1
K2
KC
KD
X5
X4
K2
K1
KC
KD
23
13
41
24
14
42
KA
KB
N
L1
R
H2
a)
b)
c)
d)
e)
f)
d)
a)
g)
Key
a) Safety inputs
b) Safety outputs
Safety function 2
c) Signalling outputs
d) Clock outputs
e) Processing
f) Power
g) Safety function 1
Safety function 1
Safety function 2