Operating Instructions
Safety Relay ESM-BL2..
3
Subject to technical modifications; no r
esponsibility is accepted for the accuracy of this information.
© EUCHNER GmbH + Co. KG
2090070
-09
-08/22 V1.1.0 (translation of the original operating instructions)
Applications
Depending on the application or the result of the risk assessment according to DIN EN ISO 13849-1, the device must be wired as shown in Fig. 5 to Fig. 13.
Emergency stop circuit
Fig. 5: Dual-channel emergency stop circuit without
error monitoring of the emergency stop
button and the supply cables (category 3,
up to PL d).
Fig. 6: Single-channel emergency stop circuit with-
out error monitoring of the emergency stop
button and the supply cables (category 1,
up to PL c).
Fig. 7: Dual-channel sliding guard monitoring with
positively driven limit switches (category 3,
up to PL d).
Notice:
Wire the start circuit in accordance with the application according to Fig. 8 or Fig. 9.
Starting behavior
Attention:
Safety contacts switch immediately when
the power supply is connected.
Fig. 8: Manual start.
Fig. 9: Automatic start (e.g. for applications with
a safety door).
Feedback loop
Fig. 10: Feedback loop. Monitoring of externally
connected contactors or expansion mod-
ules.
Fig. 11: Feedback loop with automatic start. Mon-
itoring of externally connected contactors
or expansion modules.
Power supply and safety contacts
Fig. 12: Connection of the power supply to terminals
A1 and A2 (power supply according to the
technical data).
Fig. 13: Connection to switching loads on safety
contacts (example contact configura-
tion. Differing according to device type.
Switching voV corresponding to
technical data).