Operating Instructions
Non-Contact Safety System CES-A-AEA-02B/CES-A-AEA-04B
22
(translation of the original operating instructions) 2084606-19-09/17
Technical data of CES-A-AEA-04B
Parameter
Value
Unit
min.
typ.
max.
Housing material
PA6.6 plastic
Dimensions
114 x 99 x 45
mm
Weight
0.25
kg
Ambient temperature at U
B
= DC 24 V
-20
-
+55
°C
Atmospheric humidity, not condensing
-
-
80
%
Degree of protection
IP20
Degree of contamination
2
Mounting
Mounting rail 35 mm according to DIN EN 60715
Number of read heads
Max. four read heads per evaluation unit
Connection (plug-in screw terminals/coded)
0.25
-
2.5
mm²
Operating voltage U
B
(regulated, residual ripple < 5%)
21
24
27
V DC
For the approval according to
the following applies
Operation only with UL class 2 power supply or equivalent measures
Current consumption I
B
(with relay energized)
1)
-
220
270
mA
External fuse (operating voltage U
B
)
0.4
-
8
A
Safety contacts
2 (relays with internally monitored contacts)
Switching current (relay outputs)
mA
- at switching voltage AC/DC
1 … 60 V
1
2)
-
300
- at switching voltage AC/DC 17 … 30 V
15
-
6,000
- at switching voltage AC
17 … 230 V
15
-
1,500
Switching load according to
Max. AC 30 V, class 2/max. DC 60 V, class 2
External fuse (safety circuit) according to EN 60269-1
6 AgG or 6 A circuit breaker (characteristic B or C)
Utilization category according to EN 60947-5-1
AC-12 60 V 0.3 A/DC-12 60 V 0.3 A
AC-12 30 V 6 A / DC-12 30 V 6 A
AC-15 230 V 2 A / DC-13 24 V 3 A
Rated insulation voltage U
i
250
V
Rated impulse withstand voltage U
imp
4
kV
Rated conditional short-circuit current
100
A
Resilience to vibration
Acc. to EN 60947-5-2
Mechanical operating cycles (relays)
10 x 10
6
Switching delay from state change
3)
- Four activated actuators
-
-
450
ms
- Three activated actuators
-
-
370
- Two activated actuators
-
-
290
- One activated actuator
-
-
210
Discrepancy time of the operating points of both relays
(with four activated actuators)
-
-
400
ms
Manual start operating mode
- Start button actuating duration
250
-
-
ms
- Start button response delay
-
200
300
Current via feedback loop Y1/Y2
5
8
10
mA
Permissible resistance via feedback loop
-
-
600
W
Ready delay
4)
-
10
12
s
Dwell time
5)
3
-
-
s
Switching frequency, max
6)
-
-
0.25
Hz
Repeat accuracy R acc. to EN IEC 60947-5-3
≤
10
%
Monitoring outputs (diagnostics DIA, monitoring outputs
01…04, semiconductor output, p-switching, short circuit-pro-
tected)
- Output voltage
0.8 x U
B
-
U
B
V DC
- Max. load
-
-
20
mA
Start button input S, test input TST
- Input voltage LOW
0
-
2
V DC
HIGH
15
-
U
B
- Input current
HIGH
5
8
10
mA
EMC protection requirements
Acc. to EN 60947-5-3
Reliability values acc. to EN ISO 13849-1
as a function of the switching current at 24 V DC
≤
0.1 A
≤
1 A
≤
3 A
Category
4
Performance Level (PL)
e
PFH
D
1.3 x 10
-8
1.5 x 10
-8
Mission time
20
years
Number of switching cycles/year
506 000
100 000
23 000
Diagnostic coverage DC
99
%
MTTF
D
136
years
1) Without taking into account the load currents on the monitoring outputs.
2) If a switching current > 300 mA in conjunction with a switching voltage > 15 V or an inductive or capacitive load is switched once using the relay outputs, it is no longer possible to reliably switch small currents
(< 15 mA) due to the contact erosion on the gold contacts.
3) Corresponds to the risk time according to EN 60947-5-3. This is the maximum switch-off delay for the safety outputs following removal of the actuator. In case of EMC interference in excess of the requirements
in accordance with EN 60947-5-3, the switch-off delay can increase to max. 750 ms. After a brief actuation < 0.8 s, the switch-on delay can increase to max. 3 s if this is followed immediately by further actuation.
4) After the operating voltage is switched on, the relay outputs are switched off and the monitoring outputs are set to LOW potential during the ready delay. For the visual indication of the delay, the green STATE
LED flashes at a frequency of approx. 15 Hz.
5) The dwell time is the time that the actuator must be inside or outside the operating distance.
6) In case of monitoring with feedback loop, the actuators must remain outside the operating distance, e.g. with a door open, until the feedback loop is closed.