6
Operating instructions
Safety-monitoring module
SRB301STV.2 /CCV.2 /PCV.2
SRB301STV.3 /CCV.3 /PCV.3
EN
Single-channel guard door monitoring circuit with interlocking
devices to ISO 14119 (Fig. 10)
• At least one contact with positive break required.
• Wire breakage and earth leakage in the control circuits are detected.
• Category 1 – PL c to DIN EN ISO 13849-1 possible.
Dual-channel guard door monitoring circuit with interlocking
device to ISO 14119 (see Fig. 11)
• At least one contact with positive break required.
• Wire breakage and earth leakage in the control circuits are detected.
• Cross-wire shorts between the monitoring circuits are not detected.
• Control category 4 – PL e to DIN EN ISO 13849-1 possible
(with protective wiring)
Dual-channel guard door monitoring circuit with interlocking
device to ISO 14119 (see Fig. 12)
• At least one contact with positive break required.
• Wire breakage and earth leakage in the control circuits are detected.
• Cross-wire shorts between the guard monitoring circuits are detected.
• Category 4 – PL e to DIN EN ISO 13849-1 possible.
S12
S11
S22
S12
nQS
QS
S12
S11
S22
S21
nQS
QS
S12
S11
S22
S21
nQS
QS
Fig. 10
Fig. 11
Fig. 12
Dual-channel control of a safety-related electronic (microproces-
sor-based) safety guard with p-type transistor outputs e.g. AOPD's
to EN IEC 61496 (see Fig. 13)
• Wire breakage and earth leakage in the control circuits are detected.
• The safety-monitoring module therefore is not equipped with a cross-
wire short detection here. The safety-monitoring module therefore is
not equipped with a cross-wire short detection here.
• If cross-wire shorts in the control circuits are detected
by the safety guard:
control category 4 – PL e to DIN EN ISO 13 849-1 possible.
Dual-channel control of magnetic safety switches according
to EN 60947-5-3 (see Fig. 14)
• Wire breakage and earth leakage in the control circuits are detected.
• Cross-wire shorts between the control circuits are not detected.
• Category 3 – PL e to DIN EN ISO 13849-1 possible.
Dual-channel control of magnetic safety switches according
to EN 60947-5-3 (see Fig. 15)
• Wire breakage and earth leakage in the control circuits are detected.
• Cross-wire shorts between the control circuits are detected.
• Category 4 – PL e to DIN EN ISO 13849-1 possible.
The connection of magnetic safety switches to the
SRB301ST safety-monitoring module is only admitted when
the requirements of the standard EN 60947-5-3 are observed.
As the technical data are regarded, the following minimum
requirements must be met:
– switching capacity: min. 240 mW
– switching voltage: min. 24 VDC
– switching current: min. 10 mA
For example, the following safety sensors meet the
requirements:
– BNS 33-02z-2187, BNS 33-02zG-2187
– BNS 260-02z, BNS 260-02zG
– BNS 260-02-01z, BNS 260-02-01zG
When sensors with LED are wired in the control circuit
(protective circuit), the following rated operating voltage
must be observed and respected:
– 24 VDC with a max. tolerance of –5 %/+20 %
– 24 VAC with a max. tolerance of –5%/+10%
Otherwise availability problems could occur, especially in
series-wired sensors, where a voltage drop in the control
circuit is triggered by LED's for instance.
S12
+24V +24V
S22
nQS
QS
S12 S22
S11
S21
nQS
QS
S12 S22
S11
S21
nQS
QS
Fig. 13
Fig. 14
Fig. 15
8.4 Actuator configuration
Single-channel control (see Fig. 16)
• 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.
•
S
= Feedback circuit and external reset in series
Dual-channel control with feedback circuit (Fig. 17)
• 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.
•
S
= Feedback circuit and external reset in series
S12
X3
13
14
K
A
K
A
K
A
S
L1
N
S12
X3
13
14
K
B
K
A
K
B
K
A
K
B
L1
N
K
A
S
Fig. 16
Fig. 17
