UE48-2OS2D2 datasheet(53/92 Pages) SICK

53 / 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

5 3

ue43-3ar

dimensional drawings

dimensions in mm (inch)

Screw-type terminals

(3.25)

82.5

(3.67)

93.3

(3.8)

96.5

(1.9)

48.3

(2.63)

66.7

(2.48)

Plug-in screw-type terminals

(3.07)

(3.67)

93.3

(3.8)

96.5

(2.28)

(2.64)

(3.35)

connection diagram

Power

Reset

CH 1

CH 2

Control-Logic

S34

23 33 41

14 24 34 42

S21 S11

S12 S52 S22

–

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). Activation of the

sensor (opening of one or both input circuits) affects the open-

ing of the normally open outputs (LED K1 and K2 off).

External device monitoring (EDM)

The UE43-3AR 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.

Connecting the EDM contacts between S11 and S34 replaces

the wire link.

Automatic reset

For automatic resetting, S11 - S34 must be linked.

Cross-circuit detection

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

these are wired with opposing polarity.

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