EUCHNER CETx-AR-xxx-AH-xxx (Unicode) - Manual (Page 35)

Operating Instructions Safety Switch CET.-AR-...-AH-...
35
Setup
LED indicators
LED Color State Significance
STATE green
illumi-
nated
Normal operation
flashing
Teach-in operation or Power Up
(further signal functions: see status table)
DIA red
illumi-
nated
- Internal electronics fault
- Fault at the inputs/outputs
LED 1 red freely configurable*
LED 2 green freely configurable*
*) 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.
TIP: We recommend performing the teach-in operation prior to mounting. Mark
switches and actuators that belong together in order to avoid confusion. For de-
vices to be connected in series, we recommend performing the teach-in operation
separately for each device prior to series connection.
Important:
Ì The teach-in operation may be performed only if the device functions flaw-
lessly. The red LED DIA must not be illuminated.
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 Version without teach-in input: If the switch detects the actuator that was
most recently taught when in teach-in standby state, this state is ended im-
mediately and the switch changes to normal state.
Ì Versions with teach-in input: Teach-in operation ends when the power supply
to the teach-in input is interrupted, but no later than after 3 min. If no actua-
tor was detected during this time, the device enters the fault state.
Ì The actuator being taught is not activated if it is within the operating dis-
tance for less than 60 s.
LED2
STATE (gn) DIA (rd)
LED1