Euchner CES, CEM Data Sheet
CES/CEM Non-Contact Safety Switches
CES-A-LNA... read head
! Cube-shaped design 42 x 25 mm
! Hard-wired cable
!
In combination with CES-A-A evaluation units...
and CES-A-BBA actuators
Dimension drawing type CES-A-LNA...
"l"
2 safety screws M4x14 are supplied
42
CES-A-L XXXXXX
±0,1
32
25
Active
face
ET99175
II 3 G, EEx n A II T5 (zone 2, gases)
II 3 D, EEx n A II T5, 70°C
(zone 22, dusts)
Notes on installation
!!
! The connection cable is only allowed to be
!!
extended using EUCHNER plug connectors
12
if adequate consideration is given to EMC
during assembly (see page 55).
Intermediate terminals are not allowed to
∅4,5
∅8
be used.
!!
! Actuator and read head must be fitted so
!!
that:
!
The active faces (front faces) are at the
switch-on distance 0.8 x Sa0 or closer (see
4,6
Active
face
technical data) with the safety guard closed.
!
They are not used as a mechanical stop.
!
They are positively mounted on the safety
guard, e.g. using the safety screws
included.
Safety precautions
!!
! If the read head and/or actuator is/are in-
!!
stalled flush, the switching distance changes as a function of the installation depth
and the safety guard material.
Typical operating distance
With CES-A-ABA-01 evaluation unit and CES-A-BBA actuator With CES-A-ABA-01B/CES-A-AEA... evaluation unit
and CES-A-BBA actuator
Distance s [mm]
-8
OFF
s
-4-6-2
m
Actuator
Read head
Switch-off
8
distance
Hysteresis
6
Switch-on
distance S
4
2
ON
0
Centre offset m [mm]
Output stage
ON
OFF
OFF
a0
2
648
Hysteresis
Distance sS
a0
Distance s [mm]
Secondary
beam
-20 5 201510
s
OFF
N
-10-15 -5 0
m
Actuator
Read head
20
Switch-off
distance
15
Switch-on
distance S
10
5
ON
Centre offset m [mm]
For a side approach direction for the actuator and read head, a
minimum distance of s = 3 mm must be maintained so that the
operating distance of the side lobes is not entered.
a0
Output state
ON
OFF
OFF
Hysteresis
Secondary
beam
N
Hysteresis
Distance sS
a0
30
CES/CEM Non-Contact Safety Switches
Technical data
Parameters Value Unit
min. typ. max.
Housing material Fortron, reinforced thermoplastic, fully encapsulated
Dimensions 42 x 25 x 12 mm
Weight (incl. 10 m cable) 0.3 kg
Ambient temperature -25 - +70 °C
Degree of protection IP67
Installation position Any
Method of operation Inductive
Dynamic data transfer to the evaluation unit 2 kbps
Power supply Via evaluation unit
Dwell time
Operating distance for center offset m = 0
(CES-A-ABA-01 evaluation unit with CES-A-BBA)
- Safe switch-off distance S
Cable length l = 0 to 25 m
- Switch-on distance S
- Switching hysteresis 0.5 1.5 Cable length l ≥ 25 to 50 m
- Switch-on distance S
- Switching hysteresis 0.4 1.2 Operating distance for center offset m = 0
(CES-A-ABA-01B/CES-A-AEA... evaluation unit
with CES-A-BBA)
- Safe switch-off distance S
Cable length l = 0 to 25 m
- Switch-on distance S
- Switching hysteresis 0.5 2 Cable length l ≥ 25 to 50 m
- Switch-on distance S
- Switching hysteresis 0.4 1.6 Connection cable Hard-wired encapsulated connection cable, with crimped ferrules
Cable length See ordering table 50 m
1) The dwell time is the time that the actuator must be inside or outside the operating distance.
2) These values apply for flush installation of the read head and the actuator in aluminum.
3) These values apply for surface installation of the read head and the actuator.
1)
2)
ar
a0
a0
3)
ar
a0
a0
0.5 - - s
--23
56 -mm
4 4.8 -
--32
10 15 - mm
812 -
PVC, ∅ 4.6 mm
PUR, ∅ 4.8 mm, suitable for drag chain
Pin assignment
Read head with connection cable
BN
WH
H1 H2 SH
Evaluation unit
CES-A-ABA...
Screen
Read head
BN
H1a
Evaluation unit
CES-A-AEA...
Screen
Read head
WH
H1b SH1
Ordering table
Cable type
Series Cable length V = PVC Article Order No.
„l“ (meters) P = PUR
-05 V CES-A-LNA-05V 071 845
-10 V CES-A-LNA-10V 071 846
-15 V CES-A-LNA-15V 071 847
CES-A-LNA...
-25 V CES-A-LNA-25V 071 975
-50 V CES-A-LNA-50V 077 795
-05 P CES-A-LNA-05P 077 806
-10 P CES-A-LNA-10P 077 807
-15 P CES-A-LNA-15P 084 682
31
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