EUCHNER CES-AH-C03-AH-SM (Unicode) - Manual (Page 13)

Operating Instructions Safety Switch CES-AH-C03-AH-SM
13
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
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 are in high-resistance state, i.e. the
system is in the safe state.
Important!
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 process is carried out. The disabled code is
deleted 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 an actuator which has already been taught when in
teach-in standby state, this state is ended immediately and the switch chang-
es to normal state.
Ì The actuator being taught is not activated if it is within the operating dis-
tance for less than 60 s.
Carrying out teach-in for a new actuator
1. Apply operating voltage to the safety switch.
¨ The green LED flashes quickly (approx. 10 Hz)
A self-test is performed during this time (approx. 3 s). After this, the 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.
2. Move new actuator to the read head (observe distance < S
ao
).
¨ Teach-in operation starts, green LED flashes (approx. 1 Hz). During teach-in,
the safety switch checks whether the actuator is a disabled actuator. If this is
not the case, the teach-in operation is completed after approx. 60 seconds,
the green LED goes out. The new code has been saved, the old code disabled.
3. To activate the new actuator code from the teach-in operation in the safety
switch, the operating voltage to the safety switch must then be switched off
for min. 3 seconds.