Application examples using the modular safety relay system
102597_en_03
PHOENIX CONTACT
Function description
For additional diagnostic descriptions, please refer to Section 8.
Notes on theapplication
example
1.
The magnetic safety switch must meet the requirements of EN 60947-5-3.
2.
Contactors K3 and K4 have mirror contacts in accordance with EN 60947-4-1.
3.
When using the safety relay, take into consideration the maximum permissible number
of cycles for observing the SIL/PL safety characteristics in the specific application. The
safety characteristics can be found in the AH EN SAFETY CHARACTERISTICS appli-
cation note or the SISTEMA library.
Start
Action
Result
Diagnostics
1.
Close the safety door.
The safety door circuit closes the first enable circuit via
S10, S11, and S12 and opens the second enable circuit
via S10, S11, and S13 of the safety relay.
The circuits are enabled via the reset button.
2.
Press reset button S1.
Contactors K3 and K4 are activated and the mirror con-
tacts (N/C contacts of K3 and K4) in the reset circuit are
opened.
Stop
Action
Result
Diagnostics
1.
Open the safety door.
The safety function is triggered and contactors K3 and K4
drop out.
In the reset circuit, the mirror contacts of K3 and K4 are
closed.
Power
IN 1
IN 2
K1
K2
Power
IN 1
IN 2
K1
K2
Power
IN 1
IN 2
K1
K2
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