16
17
With testi ng by the control, the ELMON relay 31-33 system sati sfi es the Cat. 2 require-
ments in accordance with EN ISO 13849-1:2015
"Safety-related parts of control
systems"
.
Without testi ng, the operati on or wiring of the ELMON relay 31-33 sati sfi es no specifi c
safety requirement.
ELMON relay 31-33
Safety Relay
English
U
Test
12 V . . . 28 V AC/DC
6.3 Test
For a standard-compliant design of the protecti on, the primary machine control must perform a test prior
to each dangerous movement or during the non-dangerous phase/movement of the machine. Upon appli-
cati on of the test signal, the output terminal of the switching unit must open. This change in switching state
must be evaluated by the primary machine control . If the test result is correct, the machine control then
initi ates the movement or the next work step. Otherwise, the control must output an error message and
the power-driven work equipment (e.g. motor) must receive a switch-off signal from the machine control.
The available test signal can be selected with the DIP slide switch.
Characteristi cs of the signal
Test signal S1 Pos. "A"
Test signal S1 Pos. "B"
Switching outputs
DIP slide switch S1
Test signal connecti on terminals
6.4 Wiring opti ons
DC
DC
AC/DC
AC/DC
