EUCHNER CETx-AP-xxx-AH-xxx (Unicode) - Manual (Page 24)

Operating Instructions Safety Switch CET.-AP-...-AH-...
24
Setup
LED indicators
LED Color State Significance
STATE green
illumi-
nated
Normal operation
flashing
Teach-in operation or Power Up
(for further signal function see status table)
DIA red
illumi-
nated
- Internal electronics fault
- Fault at the inputs/outputs
LED 1 red Solenoid status
LED 2 green Door position status
*) Can vary depending on version. See data sheet.
Teach-in function for actuator
The actuator must be allocated to the safety switch using a teach-in function before
the system forms a functional unit.
During a teach-in operation, the safety outputs and the monitoring output OUT are
in a high-resistance state, i.e. the system is in the safe state.
Depending on the version, the teach-in operation is automatic or is undertaken
with the aid of the teach-in input J.
Important:
Ì The switch must be fully connected as described in the section Electrical
connection to be able to use the following functions.
Ì In case of version with teach-in input: For the teach-in standby state, the
teach-in input J must be connected to +24 V DC (see Figures 3, 4 and 5). In
normal operation connect the teach-in input to 0 V.
Ì The safety switch disables the code of the previous actuator if teach-in is
carried out for a new actuator. Teach-in is not possible again immediately for
this actuator if a new teach-in operation is carried out. The disabled code is
released again in the safety switch only after a third code has been taught.
Ì The safety switch can only be operated with the last actuator taught.
Ì If the switch detects the actuator that was most recently taught when in
teach-in standby state, this state is ended immediately and the switch chang-
es to normal state.
Ì In case of versions with teach-in input: Teach-in standby state ends when the
power supply to the teach-in input is interrupted.
Ì The actuator being taught is not activated if it is within the operating dis-
tance for less than 60 s.