L21E-33MA2A Datasheet, PDF (4/6 Pages) SICK AG – SINGLE-BEAM PHOTOELECTRIC SAFETY SWITCHES

L21S-33MA2A, L21E-33MA2A | L21
SINGLE-BEAM PHOTOELECTRIC SAFETY SWITCHES
A
B
C
D
E
F
H
I
J
K
L
M
N
O
P
Q
R
S
T
Dimensional drawing (Dimensions in mm (inch))
M30 axial
11.5
(0.45)
100 (3.94)
88.5 (3.48)
62 (2.44)
LED
LED
M12 x 1
SW 36
5
(0.20)
17
(0.67)
Connection diagram
3 x L21 (cascaded) with Flexi Classic main unit and expansion module on UE10-3OS
+24 V
+24 V
+24 V
0V
0V
TE
Q
S1
L21S
L21E
+24 V
0V
Q
L21E
+24 V
0V
TE
L21S
+24 V
0V
TE
L21S
+24 V
0V
Q
L21E
I1 I2 A1 X1 X2 S1 S2 S3
UE410-MU/XU
34 ⁵⁶
3 ²
7
1
8
0
9
FE
Function
I3 I4 A2 Q1 Q2 Q3 Q4 EN
B1 B3 Y1 13 23 33 41
UE10-3OS
B2 B4 Y2 14 24 34 42
1)
0V
2) PELV
E117082/00/2014-06-02
Task
Integration of three cascaded L2000 (L21) family single-beam photoelectric safety switches with a UE410-MU/XU safety controller
and a UE10-3OS safety relay.
Operating mode: with restart interlock and external device monitoring.
Function
The system is ready when the light path is clear and the UE10-3OS is de-energized and functioning correctly. When the S1 button
is pressed and released, the Q1 and Q2 outputs on the UE410-MU/XU are live and the UE10-3OS is switched on. If one of the light
beams is interrupted, the Q1 and Q2 outputs on the UE410-MU/XU shut down the UE10-3OS.
Possible faults
Malfunctions in the UE10-3OS will be detected. The shutdown function is retained.
4
OPTO-ELECTRONIC PROTECTIVE DEVICES | SICK
Online data sheet | 2017-09-01 12:26:26
Subject to change without notice