Example Of Use - ASO Safety Solutions ELMON relay 31 Manuel D'utilisation

Safety Relay

6.5 Example of use

Safety-related monitoring of a sensor circuit with primary PLC or machine control.
For a functional test of the protection, the PLC/machine control performs a test prior to each dangerous
movement or in the non-dangerous phase/movement of the machine . If the test result is correct, the PLC/
machine control then initiates the movement or the next work step.
24VDC
A1 L1
ELMON relay 31-31
A2 N PE
0VDC
18
X2
X1
Test
Signal
13 14
1
K2
2
K1
A1
A2
A1 I1.1
K1
PLC
A2 Q1.1 Q1.2
K2
A1
A2
L1 L2 L3
1 3 5
2 4 6
M