6
Operating instructions
Input expander module
PROTECT-PE
EN
8.3 Actuator configuration
Enabling circuits (Fig. 18 and 19)
All safety-monitoring modules with control category 4 or PLe from the
Schmersal Group with current < 1 A in the monitoring circuit can be
connected to the Protect-PE-02 and Protect-PE-11 devices.
13
23
14
24
S11
S21
S12
S22
13
23
14
24
a)
PROTECT-
PE-02 /
PE-11
K1
K3
K5
K2
K4
K6
K7
K8
K1
K2
Fig. 18: PROTECT-PE-02 / PROTECT-PE-11
a) Safety-monitoring module, e.g. SRB301MC, SRB301ST, SRB211ST, …
• All safety-monitoring modules from the Schmersal Group, which are
suitable for setting up an antivalent input circuit, can be connected to
the PROTECT-PE-11-AN.
13
21
14
22
S13
S21
S14
S22
13
23
14
24
a)
PROTECT-
PE-11-AN
K1
K3
K5
K2
K4
K6
K7
K8
K1
K2
Fig. 19: PROTECT-PE-11-AN
a) Safety-monitoring module, e.g. SRB301AN, SRB211AN, AES1337, …
The safety-monitoring modules must be suitable for the signal
processing of 1- or 2-channel potential-free NC contacts or,
for the version PROTECT-PE-11-AN, for a combination of
NC/NO contacts. The start and actuator configuration must
be realised in accordance with this operating instructions
manual.
Signalling outputs (see fig. 20 and 21)
• The LED's or the signal outputs indicate that the safety guard or the
emergency stop circuit is opened.
• Both contact circuits of a sensor are monitored.
• If the safety guard or the emergency stop circuit is opened, a
24V signal is activated at the output concerned (Y1...Y4) and Y5
(summation signal) and the allocated LED's are lit.
• If one or more safety guards or emergency stop circuits are opened,
the signalling contact 33-34 is closed and the signalling contact 32-33
is opened.
K2
Y1
A1
A2
K1
K4
Y2
K3
K6
Y3
K5
K8
Y4
K7
K1
K2
K3
K4
K5
K6
K7
K8
Y1
Y2
Y3
Y4
Y5
Fig. 20
K1 … K8
33
32
34
Fig. 21
Auxiliary contacts must not be used in safety circuits.
Cascading (Fig. 22 and 23)
• In this way, up to 20 components can be wired in series.
This corresponds to a signal processing of up to 80 sensors.
13
14
23
24
PROTECT-PE-02
PROTECT-PE-11
PROTECT-PE-02
PROTECT-PE-11
PROTECT-PE-02
PROTECT-PE-11
PROTECT-PE-02
PROTECT-PE-11
13
14
23
24
13
14
23
24
13
14
23
24
S11
S12
S21 S22
a)
Fig. 22: a) Safety-monitoring module, e.g. SRB301MC, SRB301ST,
SRB211ST, …
13
14
21
22
PROTECT-
PE-11-AN
PROTECT-
PE-11-AN
PROTECT-
PE-11-AN
PROTECT-
PE-11-AN
13
14
21
22
13
14
21
22
13
14
21
22
S21 S22 S13
S14
a)
Fig. 23: a) Safety-monitoring module, e.g. SRB301AN, SRB211AN, …