EUCHNER CES-A-ABA-01, Operating Instructions Manual, Page: 14 / 40

Operating Instructions
Non-Contact Safety System CES-A-ABA-01/CES-A-ABA-01B
14
(translation of the original operating instructions) 071873-15-07/15
9. Setup
9.1. LED indicators
Designation Color Significance
STATE
green State display (multifunction display using flashing modes)
OUT yellow Safety circuit closed
ERROR Red
Ì
Operating fault or
Ì
External fault (fault in the feedback loop) or
Ì
Teach-in operation not valid or
Ì
Internal device fault or
Ì
TST input activated (function test active)
9.2. Teach-in operation
The actuator must be assigned to the evaluation unit using a teach-in function before the system forms a functional unit.
During the teach-in operation the safety outputs are open and the door monitoring output LOW. The system is in the safe state.
Important!
Ì The teach-in operation can differ for read heads that are not described in this document. Observe
the information in the operating instructions for the read head used.
Ì During the teach-in operation the following conditions must be met:
-There must be no state change, e.g. opening a safety door or closing a further safety door.
-The power supply must not be switched off.
Ì If these conditions are not met, the evaluation unit switches to the safe fault state (ERROR LED
illuminates) and signals this operating fault with the STATE LED by three short flashes that are re-
peated every second. The teach-in operation must be repeated.
Ì Repeated teach-in of the same actuator on the same evaluation unit is not possible.
Ì The number of teach-in operations on one evaluation unit is limited to a maximum of 8
Ì The evaluation unit can only be operated with the last actuator taught
Ì Actuators cannot be interchanged without a renewed teach-in operation.
Ì An actuator that has not been subjected to teach-in will not be detected by the related read head.
Ì Even if only one new actuator needs to be taught, a complete new teach-in operation must be car-
ried out as described in the section Setup .
Ì When the evaluation unit is switched on (operating voltage is applied), the STATE LED signals the
number of possible remaining teach-in operations (see system status table)
Ì After the eighth teach-in operation or if an "old" actuator is placed against the read head, the sys-
tem automatically switches to the teach-in mode. In both cases, a teach-in operation with a dura-
tion of 60 seconds is started; however, the last actuator code remains active (see system status
table) in the memory – a new code is not taught.