Euchner CES, CEM Data Sheet
CES/CEM Non-Contact Safety Switches
CEM-A-LD4-S2 read head
! Adhesive force 400 N
! In combination with CES-A-ABA-01B/CES-A-AEA... evaluation
unit and CEM-A-BD4 actuator
!
M8 plug connector
Connection cable for evaluation unit see page 53
Connection cable for solenoid operating voltage see page 51
Ex zone 2*
* Approval pending
Dimension drawing
7
Active
face
Solenoid
8
28
S1: Solenoid
operating voltage
with LED
connection
80
65
40
∅ 40
16
50
±0,10
5,4
S3: Read head
connection
7
14,5
49,5
Note
!!
! The CEM... actuators and the read heads
!!
cannot be used with the CES-A-ABA-01
evaluation unit.
!!
! The plug connectors S1 and S3 are suitable
!!
for snap-action and screw terminals.
Notes on installation
!!
! The connection cable is only allowed to be
!!
extended using EUCHNER plug connectors
if adequate consideration is given to EMC
during assembly (see page 55).
Intermediate terminals are not allowed to
be used.
!!
! Actuator and read head must be fitted so
!!
that:
!
They are positively connected to the safety
guard, e.g. by using safety screws.
!
When the safety door is opened, the
actuator is moved in the axial direction (frontal) away from the read head.
Safety precautions
!!
! The surface of the solenoid and the mating
!!
plate may become hot.
Protection against accidental contact or
adequate heat dissipation must be provided
by mounting the read head on metal.
Typical operating distance
With CES-A-AEA... and CES-A-ABA-01B evaluation unit
Observe safe switch-off
distance s
internal component failure.
Safety outputs are safely
switched off.
44
= 20 mm on
ar
Distance s [mm]
-4
Actuator
s
OFF
ON
-3
-2
-1
Center offset m [mm]
m
Read head
4
3
2
1
0
Switch-off
distance
Hysteresis
Switch-on
distance S
ON
Direction of opening
Output state
ON
OFF
OFF
a0
3
2
1
Hysteresis
Distance sS
a0
± 4˚
Read head
4
Actuator
CES/CEM Non-Contact Safety Switches
Technical data
Parameters Value Unit
General min. typ. max.
Housing material Aluminum
Material, CES read head Plastic (PPS)
Solenoid material Galvanized steel
Weight Approx. 0.3 kg
Ambient temperature -25 - +50 °C
Degree of protection
according to IEC 60529 IP67
Installation position Any
Solenoid
Adhesive force in axial direction 400 N
Adhesive force due to remanence
Solenoid center offset max. ± 2.5 mm
Solenoid operating voltage 24 +10%/-15% DC V
Current consumption 250 mA
Power consumption 6 W
Solenoid operating voltage connection M8 plug connector (plug), 4-pin
Read head
Operating distance for center offset m = 0
- Safe switch-off distance s
Cable length l = 0 to 25 m
- Switch-on distance s
a0
- Switching hysteresis - 0.7 Cable length l = 25 to 50 m
- Switch-on distance s
a0
- Switching hysteresis - 0.6 Evaluation unit connection M8 plug connector (plug), 3-pin
Connection cable - - 50 m
1) The residual remanence disappears immediately when the door is opened and over time in solenoids through which there is no current flow.
1)
Approx. 15 N
Yellow LED integrated in the plug connector
(see circuit diagram)
ar
--20
-2mm
- 1.6 -
Pin assignment
PE
NC
+U
YE
Solenoid
Circuit diagram connection of
solenoid operating voltage S1
0 V
S1.4
S1.2
B
S1.1
S1.3
M8 plug M8 plug
1
2
4
3
Solenoid operating
voltage
S1.1!+U
S1.2
S1.3
S1.4
!
!
!
B/ DC 24V
-
0 V/GND
쵰
PE
S1 S3
3
4
1
Evaluation unit
CES
!
S3.1
S3.3
H1
!
H2
S3.4!SH (screen)
Ordering table
Article Adhesive force [N] Order No.
CEM-A-LD4-S2 400 084 790
45
Loading...