EUCHNER CET-AR Series - Preparing Device for the Teach-In Operation and Teaching-In Actuator

Operating Instructions
Transponder-Coded Safety Switch CET.-AR-…
38
(Translation of the original operating instructions) 2110788-13-03/20
11.2.1. Preparing device for the teach-in operation and teaching-in actuator
1. Connect the switch as shown below, but do not apply any voltage to U
B
yet.
For version with teach-in input: For the teach-in standby state, the teach-in input J must be connected to +24VDC.
For devices without teach-in input: The circuit is the same, but connection J is omitted.
Observe different control of guard locking for CET1/3 and CET2/4.
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 U
CM
(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 U
CM
(guard locking active)
2. Switch on operating voltage U
B
.
¨ The green STATE LED ashes quickly (approx. 10Hz).
A self-test is performed during this time (approx. 10s). After this, the green STATE LED ashes cyclically three times
and signals that it is in standby state for teach-in. Standby state for teach-in remains active for approx.3 min.
¨ If the red DIA LED is illuminated, there is a fault. Teach-in is not possible. The green STATE LED indicates the error code.
For diagnostics, see section 12. System status table on page 41.
3. Activate guard locking.
CET1/3: No voltage at U
CM
.
CET2/4: voltage at U
CM
.
4. Fully insert new actuator into the recess. Do not cant it; place it in the center of the
recess (see picture on right).
¨ Teach-in operation starts, the green STATE LED ashes (approx. 1Hz). The teach-in
operation is completed after approx. 60s, and the green STATE LED goes out.
5. Disconnect operating voltage U
B
or apply a voltage of 24V to the RST input for at
least 3s.
¨ The code of the actuator that was just taught-in is activated in the safety switch.
6. For version with teach-in input: Disconnect the teach-in input from +24 V and leave open.
7. Switch on operating voltage U
B
.
¨ The device operates normally.
!
= 90°