Function Diagram; Block Diagrams; Approvals And Markings; Additional Information About This Topic - DOLD NE 5020 Mode D'emploi

Safety Technique
Accessories for Safety Applications
Magnetic Switch coded
NE 5020

Function Diagram

Sensing
distance S [mm]
Sab
7
San 3
Outputs 14; 24
*
LED
On
Off
* only when transmitter is used with the corresponding code

Block Diagrams

(+)
Receiver channel 1
(white) A1
Supply
(green) A2
(-)
(yellow) 24
Drawing shows contacts in inactive state
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.
t
t
t
M7741
Mounting difference y
Transmitter
Code
Receiver channel 2
Decoder
(-)
Receiver
(brown) 14
• Usable for safety application by using a correctly installed and
connected, security module (e. g. BG 5925/920 or LG 5925/920)
• According to IEC/EN 60 204-1, EN 1088
• 2 channel system
• Standard switching distance: S
• 2 NO semiconductor outputs providing diversity and redundancy
• Magnetic coded, safe against manipulation
• Open end connection wires
• M8 or M12 connector as option
• Long service life
• Easy to mount
• Resistant against vibration
• Not sensitive to external magnetic fields
• Protection class IP 67
• LED indicator

Approvals and Markings

Additional Information about this topic

• Data sheet control unit BG 5925/920 or LG 5925/920 for safety switch

Applications

The magnetic switch NE 5020 is suitable to detect the closed state of sa-
fety gates, sliding gates and removable covers also under rough ambient
conditions or for hygienic requirements. The corresponding control unit is
BG 5925/920 or LG 5925/920.

Function

The magnetic switch NE 5020 includes a magnetic coded transmitter and
a receiver as decoder. The semiconductor outputs close, when the recei-
ver recognises the right code from the transmitter. The control unit detects
cross faults on the lines 14 and 24. The control unit is switched off when
a fault is detected and inhibits a new start. The switch is protected against
short circuits and peak voltages.

Connections

The NE 5020 is connected to the control unit BG 5925/920 or LG 5925/920
according to the application example below.

Indicators

green LED:
M7742

Notes

The code of transmitter and receiver are identically on delivery. This can
be verified by a mark on the test sticker.
11
≤ 5.5 mm
an
≥ 13 mm
S
ab
switch is active, outputs switched on
NE 5020 / 23.07.18 en / 004A