EUCHNER CET - Manual (Page 4)

CET Help for Setup and Service
Page 4 of 10 Subject to technical modifications 01/2013
2 Teach-in
2.1 Preparing device for teach-in operation
 Connect the CET 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 connection J is omitted.
 Observe different control of guard locking for CET1/3 and CET2/4.
2.2 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. 8s). 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 page 9.
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 below).
 Teach-in operation starts, green LED flashes (approx. 1Hz). The teach-in operation is completed after approx.
60 seconds and all the 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 0V.
6. Switch on operating voltage UB.
 The device operates normally.