2
Operating Instructions
Safety Relay ESM-BT4..
4. Wiring power supply:
Connect the power supply to terminals
A1
and
A2
Attention:
Wiring only in de-energized state.
5. Setting delay time:
Set the required time delay on the potentiometer (not
necessary for variants with fixed time).
Attention:
Tick marks should be regarded only as
a setting aid. Always make sure to measure the
delay time.
6. Starting the device:
Switch the operating voltage on.
Attention:
If the
Automatic start
behavior is set, the
safety contacts will close immediately.
If the
Monitored manual start
behavior is set, close
the start button to close the safety contacts.
LEDs
K1, K2, K3
and
K4
illuminate.
7. Activating safety function:
Open the emergency stop circuit by actuating the
connected safety switch. The safety contacts open
immediately.
Attention:
Measure the delay time.
8. Reactivating:
Close the emergency stop circuit. If
Automatic
start
is selected, the safety contacts will close
immediately.
If the
Monitored manual start
behavior is set, close
the start button to close the safety contacts.
What to do in case of a fault?
Device does not switch on:
f
Check the wiring by comparing it to the wiring
diagrams.
f
Check the safety switch used for correct function
and adjustment.
f
Check whether the emergency stop circuit is
closed.
f
Check whether the start button (with manual start)
is closed.
f
Check the operating voltage at
A1
and
A2
.
f
Is the feedback loop closed?
Device cannot be switched on again after an
emergency stop:
f
Check whether the emergency stop circuit was
closed again.
f
Was the start button opened before closing of the
emergency stop circuit (with manual start)?
f
Is the feedback loop closed?
If the fault persists, perform the steps listed under
Setup procedure
.
If these steps do not remedy the fault either, return
the device to the manufacturer for examination.
Opening the device is impermissible and will
void the warranty.
Maintenance
The device must be checked once per month for
proper function and for signs of tampering and by-
passing of the safety function. Check the wiring of
the device and activate the emergency stop function.
Check the delay time.
The device is otherwise maintenance-free, provided
that it was installed properly.
Disposal
Pay attention to the applicable national regulations
and laws during disposal.
EU declaration of conformity
The declaration of conformity is part of the operating
instructions, and it is included as a separate sheet
with the device.
The EU declaration of conformity can also be found
at: www.euchner.com
Service
If servicing is required, please contact:
EUCHNER GmbH + Co. KG
Kohlhammerstraße 16
70771 Leinfelden-Echterdingen
Germany
Service telephone
:
+49 711 7597-500
:
Internet
:
www.euchner.com
