Operating Instructions
Non-Contact Safety Switch CES-AH-C03-AE-LS
18
(Translation of the original operating instructions) 2105267-10-08/20
11.2. Typical system times
Ready delay:
After switching on, the device carries out a self-test for 3 s. The system is ready for operation only after
this time.
Risk time according to EN 60947-5-3:
If an actuator moves outside the actuating range, the safety outputs LA and LB
on the corresponding safety switch are deactivated at the latest after 250 ms.
Difference time:
The safety outputs LA and LB switch with a slight time offset. They have the same signal state at the
latest after a difference time of 50 ms.
System times for
reset after a fault
and
normal operation
Secondary conditions: UB = 24 V
+LA permanently connected with UB
+ LB switched by control system
Actuator moved
t
Actuator
Start
LA
+LB
LB
DIA (LED red)
off
on
0 V
+24 V
0 V
+24 V
0 V
+24 V
0 V
+24 V
None
Detected
Star
t
Fault detection
Occurr
ence of a fault
Restar
t
Star
t
Operational
No actuator
Outputs switch of
f
Star
t connected together
Actuator detected
∆
t
1
∆
t
2
∆
t
3
∆
t
4
D
t
1
= Fault detection time
D
t
2
= Fault time (5 s; switch dwells in the fault state during this time)
D
t
3
= Power-up time (3 s)
D
t
4
= Risk time (
≤
250 ms, time from
no actuator
to
outputs switch off
)
Figure 3:
System times for individual switches
