Description

The multiple light beam safety devices of the MLD 300 (type 2) and MLD 500 (type 4) series are used for access guarding at machines and systems. The devices are available as 2-, 3- and 4-beam transmitter-receiver systems for large operating ranges up to 70 m and as cost-efficient 2- and 3-beam transceiver systems for operating ranges up to 8 m.

Technical Features:-

Basic Data:-

Series	MLD 500
Device type	Transceiver

Special version:-

Special version

Integrated muting indicator
Integrated status indicator

Functions:-

Functions	Alternative connection for second muting signal Configuration by means of wiring Contactor monitoring (EDM), selectable Muting-timeout extension Muting enable function Sequence controlled 2-sensor muting Start/restart interlock (RES) Timing controlled 2-sensor muting
Integrated laser alignment aid	No
Integrated muting indicator	Yes
Integrated status indicator	Yes

Characteristic Parameters:-

Type	4, IEC/EN 61496
SIL	3, IEC 61508
SILCL	3, IEC/EN 62061
Performance Level (PL)	e, EN ISO 13849-1
MTTF_d	204 years, EN ISO 13849-1
PFH_D	6.6E-09 per hour
Mission time	20 years, EN ISO 13849-1
Category	4, EN ISO 13849

Protective Field Data:-

Operating range

0.5 … 8 m

Optical Data:-

Number of beams	2 Piece(s)
Beam spacing	500 mm
Light source	LED, Infrared
Wavelength	850 nm
Transmitted-signal shape	Pulsed
LED risk group	Exempt group (in acc. with EN 62471:2008)

Electrical Data:-

Selection of operating mode	Connection 1, pin 2: +24 V for operating mode 1, 2, 4 Connection 1, pin 2: 0 V for operating mode 3, 5, 6 Connection 1, pin 7: 0 V for operating mode 1, 2, 4
Protective circuit	Overvoltage protection Short circuit protected

Performance Data:-

Supply voltage U_B	24 V, DC, -20 … 20 %
Current consumption, max.	150 mA, Without external load
Fuse	External with max. 3 A

Inputs:-

Number of digital switching inputs

4 Piece(s)

Switching Inputs:-

Type	Digital switching input
Switching voltage high, min.	18.2 V
Switching voltage low, max.	2.5 V
Switching voltage, type.	23 V
Voltage type	DC
Switching current, max.	5 mA

Time Behavior:-

Response time	50 ms
Restart delay time	100 ms

Connection:-

Number of connections

2 Piece(s)

Connection 1:-

Function	Machine interface
Type of connection	Connector
Thread size	M12
Material	Metal
No. of pins	8 -pin

Connection 2:-

Function	Local interface
Type of connection	Connector
Thread size	M12
Material	Metal
No. of pins	5 -pin

Cable Properties:-

Permissible conductor cross section, type.	0.25 mm²
Length of connection cable, max.	100 m
Permissible cable resistance to load, max.	200 Ω

Mechanical Data:-

Dimension (W x H x L)	52 mm x 600 mm x 64.7 mm
Housing material	Metal
Metal housing	Aluminum
Lens cover material	Plastic / PMMA
Material of end caps	Diecast zinc
Net weight	1,400 g
Housing color	Yellow, RAL 1021
Type of fastening	Groove mounting Swivel mount

Operation & Display:-

Type of display	7‑segment display LED
Number of LEDs	2 Piece(s)

Environmental Data:-

Ambient temperature, operation	-30 … 55 °C
Ambient temperature, storage	-40 … 75 °C
Relative humidity (non-condensing)	0 … 95 %

Data Sheet: PDF

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