schmersal EBW-AZ Operating Instructions Manual Download Page 5

5

EBW-AZ

Operating instructions

Safety-monitoring module

EN

Fine adjustment of the programmed frequency

The fine adjustment is realised by means of the potentiometer in the 

enclosure cover, right hinged approx. 10%, left hinged approx. 100% 

(also see Fig. 8).

Relay K1 is energised in the standstill monitoring operating 

mode (change-over switch in enclosure cover), when the 

lower limit of the set frequency is exceeded or, in the rotational 

speed monitoring operating mode, the frequency is exceeded.

The chosen setting must be registered in the field provided 

to that effect on the device using an unerasable marker. The 

following setting report must be completed and added to the 

manual of the plant.

5.4  Setting report for EBW devices

This report regarding the setting of the device must be completed  

accordingly by the customer and enclosed in the technical manual  

of the machine.

The setting report must be available whenever a safety check is performed.

Company:

Device n° EBW device:
 

Sensor 

type

Limit rotational speed 

[rpm]

Resolution  

[Imp/U]

 

Cut-off frequency 

[Hz]

Frequency range 

(B1 … B4)

Sensor programming 

(J1...J4)

Set on (date)

Signature of the responsible person

For the EBW-AZ version, the chosen type (1...12) must be 

 

registered in the field provided to that effect on the cover 

 

sticker using an permanent marker!

The safety-monitoring module is used in the following machine:

Machine n°

Machine type

Parameter settings  

checked on:

Parameter settings  

checked by:

Signature

Note for EBW-AZ devices, which have not been set up:

The proper parameter setting according to the enclosed  

setting instructions is realised by the user under his/her  

own responsibility.

The setting report must be added to the machine documentation 

in accordance with the EC Machinery Directive!

6  Set-up and maintenance

6.1  Functional testing

The safety function of the safety-monitoring module must be tested. 

The following conditions must be previously checked and met:

1. Correct fixing

2. Check the integrity of the cable entry and connections

3. Check the safety-monitoring module's enclosure for damage.

4.  Check the electrical function of the connected sensors and their influence 

on the safety-monitoring module and the downstream actuators

6.2  Maintenance

A regular visual inspection and functional test, including the  

following steps, is recommended:

1. Check the correct fixing of the safety-monitoring module

2. Check the cable for damages

3. Check electrical function

Damaged or defective components must be replaced.

7  Disassembly and disposal

7.1  Disassembly

The safety-monitoring module must be disassembled in a  

de-energised condition only.

Unlock the bottom of the enclosure by means of a slot screwdriver, 

push up and hang out slightly tilted forwards.

7.2  Disposal

The safety-monitoring module must be disposed of in an appropriate 

manner in accordance with the national prescriptions and legislations.

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