Emergency stop safety relay esm-ba2, User information – EUCHNER ESM-BA2xx User Manual

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User Information

EUCHNER GmbH + Co. KG Kohlhammerstraße 16 D-70771 Leinfelden-Echterdingen Tel. +49/711/75 97-0 Fax +49/711/75 33 16 www.euchner.de [email protected]

Emergency Stop Safety Relay ESM-BA2..

Note: The items listed under “Electrical connection” must be observed during commissioning.

Commissioning
Procedure

1. Wiring emergency stop circuit:

Wire the emergency stop circuit according to the required
Performance Level determined (see Fig. 1 to Fig. 5).

2. Wiring start circuit:

Wire the start circuit according to Fig. 6 or Fig. 7 to set the
starting behavior.

Warning:

If “Automatic start” is set, bear in mind that the safety con-
tacts will switch immediately after the power supply is
connected. If “Monitored manual start” is set, the start
button must be opened after wiring.

3. Wiring feedback loop:

If your application provides for external contactors or ex-
pansion modules, connect them to the device according to
Fig.8 or Fig. 9.

4. Wiring power supply:

Connect the power supply to terminals A1 and A2 (Fig. 10).

Warning: Wiring only in de-energized state.

5. Starting the device:

Switch on the operating voltage.

Warning:

If the “Automatic start” starting behavior is set, the safety
contacts will close immediately.

If the “Monitored manual start” starting behavior is set, close
the start button to close the safety contacts.

LEDs K1 and K2 are lit.

6. Triggering safety function:

Open the emergency stop circuit by actuating the connec-
ted safety switch. The safety contacts open immediately.

7. Reactivation:

Close the emergency stop circuit. If “Automatic start” is
selected, the safety contacts will close immediately.

If the “Monitored manual start” starting behavior is set, close
the start button to close the safety contacts.

Fig. 6:

Monitored manual start.
It is monitored that the start
button was opened before the
emergency stop button closes.

(Prerequisite:
operating voltage must not be
interrupted.)

Fig. 7:

Automatic start.
Max perm. delay during
closing of the safety switches
on S12 and S13:

S12 before S13: 300 ms

S13 before S12: any

Warning:
Safety contacts switch
immediately when the
power supply is connected.

Depending on the application or the result of the risk assessment according to EN ISO 13849-1, the device must be wired as
shown in Fig. 1 to Fig. 11.

Applications

Fig. 3:

Single-channel emergency stop
circuit with earth fault monito-
ring.

(category 1, up to PL c)

Fig. 2:

Two-channel emergency stop
circuit with earth fault monitoring.

(category 3, up to PL d)

Fig. 1:

Two-channel emergency stop
circuit with short circuit and earth
fault monitoring.

(category 4, up to PL e)

Fig. 4:

Two-channel sliding guard
monitoring with short circuit and
earth fault monitoring.

(category 4, up to PL e)

Emergency Stop
Circuit

Starting Behavior

Fig. 8:

Feedback loop for monitored manual
start:
The feedback loop monitors contactors
or the expansion modules .

Feedback Loop

Fig. 9:

Feedback loop for automatic start:
The feedback loop monitors contac-
tors or the expansion modules .

Power supply

and

Safety contacts

Fig. 10:

Power supply A1 and A2.


(Power supply according to techn.
data )

Fig. 11:

Connecting load to safety contacts.

(Figure shows example.
Voltage „+V“ according to techn.
data)

Warning only for 24V-version:

In order to activate earth fault monitoring, the PE must be
connected only to the power supply unit in accordance with
EN60204-1.

Fig. 5:

Two-channel emergency stop
with pnp-outputs/OSSD-outputs

with short circuit monitoring.

(category 4, up to PL e)

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