6024924 datasheet(42/92 Pages) SICK

42 / 92 page

S e n S : c o n t r o l - S a f e c o n t r o l S o l u t I o n S | S I c K

8015528/2012-12-17

Subject to change without notice

Safety relays

Evaluation units for switching contacts

4 2

ue43-2mf

Internal circuitry

-- +

A1 A2

S21 S11 S33

S22 14 24

Control-

Logic

S34

S35

S12

S31

13 23 31

Function

After applying the supply voltage (LED SUPPLY illuminates),

the normally open contacts remain in the opened state. If the

connected sensor is not activated (i.e., the input circuits are

closed), then the normally open contacts close immediately

in automatic reset (LED K1 and K2 illuminate). In the case of

manual reset, this only occurs after pressing and releasing the

reset button. Activation of the sensor (opening of one or both

input circuits) affects the opening of the normally open outputs

(LED K1 and K2 off).

External device monitoring (EDM)

The UE43-2MF unit can take over the function of external de-

vice monitoring. The contactor monitoring system monitors the

external relays by means of their normally closed contacts.

Manual reset

For manual reset, a pushbutton must be connected to termi-

nals S33 - S34. Reset is monitored.

Automatic reset

For automatic reset, S12 - S35 must be linked.

Cross-circuit detection

Cross-circuit is detected on dual-channel wired systems if these

are wired with opposing polarity.

6024924 Datasheet(PDF) 42 Page - SICK AG