DOLD SAFEMASTER LG 5933, Datasheet / Operating Instructions

13

LG 5933 / 27.06.16 en / 718

Safety Technique

 SAFEMASTER 
  Two-Hand Safety Relay
  LG 5933

Your Advantage

•  Compact, ready to connect 2-hand safety circuit

•  Cost reduction by replacing conventional contactor circuits

•  Feedback circuit Y1 - Y2 to monitor external contactors used 

  for reinforcement of contacts

•  EC-type examinated circuit according to the requirements of  

  the health and safety authorities

•  As option with pluggable terminal blocks for easy exchange 

  of devices 

Features

•

  According to

-

Performance Level (PL) e and category 4 to EN ISO 13849-1

-

SIL Claimed Level (SIL CL) 3 to IEC/EN 62061 

-

Safety Integrity Level (SIL) 3 to IEC/EN 61508

-

Safety level Type III-C to EN 574

•  Inputs for 2 push buttons with 1 NC and 1 NO contact

•  Output: 3 NO contacts, 1 NC contact

•  Overvoltage and short circuit protection

•  Wire connection: also 2 x 1.5 mm

2

 stranded ferruled, or 

  2 x 2.5 mm

2

 solid DIN 46 228-1/-2/-3/-4

•  Removable terminal strips 

- LG 5933: 

fixed screw terminals

- LG 5933 PS:  plug in screw terminals

- LG 5933 PC:  plug in cage clamp terminals

•  Width 22.5 mm

0249758

Function Diagram

max.0,5s

>0,5s

U

UN

Y1/Y2

S1

S2

23-24

13-14

A1/A2

t

M7257_a

1.) "S1, S2 activated" means, NC open and NO closed

2.) activated S1, switches "+"-potential

3.) activated S2, switches "-"-potential

Product Description

The LG 5933 enables and disables a safety circuit in a safe way. It is used 
to protect people and machines in applications with 2-hand buttons on 
presses for metal products as well as for other production machinery with 
dangerous closing movements.

Block Diagram

A1(+)A2(-)

S12(+) Y1 Y2

S11 S21

33 41

23

13

M9071_b

S22(-)

34 42

24

14

K1

K2

K1

Netz

24V

K2

K2

(+)

K1

Überspannung- und

Kurzschlußschutz

Überwachungs-

Logik

Approvals and Markings

A025518

Circuit Diagram

Y1 Y2

S11

13

S12

(+)

A2

(-)

S22

(-)

A1

(+)

14

41

23

S21

24

42

33

34

M8465

S11

S21

Y1

Y2

A1

S12

A2

S22

K1

K2

13 23 33

41

14 24 34

42

Applications

Designed for press controls in metalworking as well as in other working 
machines with dangerous closing movements.

Indication

LED power-supply: 

on, when operating voltage applied

LED K1: 

on, when relay K1 active

LED K2: 

on, when relay K2 active

All technical data in this list relate to the state at the moment of edition. We reserve the right for 
technical improvements and changes at any time.