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Operating Instructions

Safety Relay ESM-BT4..

4. Wiring power supply:

Connect the power supply to terminals 

A1

 and 

A2

 

(see Fig. 14).

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

E-mail

:

[email protected]

Internet

:

www.euchner.com

Summary of Contents for ESM-BT4 Series

Page 1: ... via LED f 2 starting behaviors possible Monitored manual start Automatic start f Short circuit and ground fault monitoring f Use up to PL e SILCL 3 category 4 Function The moving parts of a machine or system can be quickly and safely stopped in case of danger with the non time delayed contacts of the ESM BT4 Safety contacts with time delay switch off are also integrat ed into the ESM BT4 They are...

Page 2: ...ncy 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 clos...

Page 3: ...Contact material AgSnO2 Mech contact life Approx 1 x 107 Test voltage 2 5 kV control voltage contacts Rated impulse withstand voltage leakage paths air gaps 4 kV DIN VDE 0110 1 Rated insulation voltage 250 V Degree of protection IP20 Temperature range 15 C to 40 C 1 Degree of contamination 2 DIN VDE 0110 1 Overvoltage category 3 DIN VDE 0110 1 Weight Approx 250 g Mounting Mounting rail according t...

Page 4: ... Wire the start circuit in accordance with the applica tion according to Bild 10 or Bild 11 Fig 8 Dual channel sliding guard monitoring with short circuit and ground fault monitoring category 4 up to PL e Fig 9 Dual channel emergency stop circuit with pnp semiconductor outputs OSSD outputs with short circuit detection category 4 up to PL e Starting behavior Attention Safety contacts switch immedia...

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