
Functions
Leuze electronic
MSI-TRMB
14
4
Functions
After the safety relay is switched on, the device performs a self test. During this test, the operating mode
in which the safety relay is to function is determined on the basis of the wiring. The basic wiring configu
-
rations of the individual operating modes are given below.
4.1
Operating mode 1 AOPD
Safety monitoring device with one or more protective sensors connected in series used for safeguarding
danger zones or points of operation on machines and systems.
AOPD = one or more protective sensors connected in series
Figure 4.1: Basic wiring for operating mode 1 AOPD (one protective sensor)
4.2
Operating mode 2 AOPD
Safety monitoring device with two protective sensors or two series connections consisting of multiple
protective sensors used for safeguarding danger zones or points of operation on machines and systems.
AOPD = one or more protective sensors connected in series
Figure 4.2: Basic wiring for operating mode 2 AOPDs (two protective sensors)
4.3
Operating mode ES
Safety sequential device for 2-channel E-Stop monitoring with NC contacts.
ES
= mechanical E-Stop switch (2-channel)
Figure 4.3: Basic wiring of operating mode ES (E-Stop)
If protective sensors are linked together in the way shown in the connection examples (see
figure 7.3 and see figure 7.4), the total delay time (0.5 ms to 8.5 ms) should be noted.
AOPD
S11
S12
S21
S22
S32
If protective sensors are linked together in the way shown in the connection examples (see
figure 7.7 and see figure 7.8), the total delay time (0.5 ms to 8.5 ms) should be noted.
AOPD
AOPD
S11
S12
S21
S22
S32
Automatic start is not approved for E-Stop applications.
ES
S11
S12
S21
S22
S32
ES