EUCHNER CETx-AR-xxx-AH-xxx (Unicode) User Manual
Page 36
Operating Instructions Safety Switch CET.-AR-...-AH-...
36
Preparing device for teach-in operation
Ì
Connect the switch as shown below, but do not apply any voltage to UB yet.
In case of version with teach-in input: For the teach-in standby state, the
teach-input J must be reconnected from 0 V to +24 V DC. Important: In normal
operation reconnect the teach-in input to 0 V.
In case of version without teach-in input: The circuit is the same, but con-
nection J is omitted. Observe different control of guard locking for CET1/3 and
CET2/4.
Actuator teach-in
1. Switch on operating voltage UB.
¨
The green LED flashes quickly (approx. 10 Hz).
A self-test is performed during this time (approx. 8 s). After this, the green
LED flashes cyclically three times and signals that it is in standby state for
teach-in. Standby state for teach-in remains active for approx. 3 minutes.
¨
If the red LED is illuminated, there is a fault. Teach-in is not possible. The green
LED indicates the fault code. Diagnostics, see section System status table on
2. Activate guard locking.
CET1/3: no voltage at UCM.
CET2/4: Voltage at UCM.
3. Fully insert new actuator into the recess. Do not cant it; place it in the center
of the recess (see picture on left).
¨
Teach-in operation starts, green LED flashes (approx. 1 Hz). The teach-in opera-
tion is completed after approx. 60 seconds and all LEDs go out.
4. Switch off operating voltage UB (min. 3 seconds).
¨
The code of the actuator that was just taught in is activated in the safety switch.
5. In case of version with teach-in input: Connect teach-in input to 0 V.
6. Switch on operating voltage UB.
¨
The device operates normally.
!
= 90°
CET1/3
GND
DC 24 V
IB
IA
0V UB
UB
-F1
-F2
0V UCM
UCM
J
Devices with teach-in input:
Connect J to 24 V for teach-in
CET1-... and CET3-...:
No voltage at UCM (guard locking active)
CET2/4
GND
DC 24 V
IB
IA
0V UB
UB
-F1
-F2
0V UCM
UCM
J
Devices with teach-in input:
Connect J to 24 V for teach-in
CET2-... and CET4-...:
Voltage at UCM (guard locking active)