CES-A-BBA EUCHNER, CES-A-BBA Datasheet - Page 8

• Manufacturer Part Number: CES-A-BBA
• Description: ACTUATOR
• Manufacturer: EUCHNER

Specifications of CES-A-BBA

• External Depth: 40.5mm
• External Length / Height: 131mm
• Operating Temperature Max: 55°C
• Operating Temperature Min: -0°C

Non-Contact Safety Switches CES/CEM
Evaluation unit CES-A-ABA...
Functional description
The Coded Electronic Safety switch CES comprises three
components:
The evaluation unit CES-A-ABA-01 is suitable for the direct
connection of a read head, i.e. in each case, the code from only
one actuator is read and processed.
The teaching of other actuators can be initiated with a teach-in
operation. The teach-in operation can be performed up to 8 times
with a new actuator; the actuator from the last teach-in is always
the valid actuator. The evaluation unit in the DIN rail housing, degree
of protection IP 20, is suitable for installation in the control cabinet.
The two-core connection cable to the evaluation unit is hard-wired
to the read head or can be plugged in using a round M8 plug
connector. In this way, the wiring work is reduced to an absolute
minimum.
The read head is fastened to the fixed part of the safety guard
and is connected to the evaluation unit via a two-core screened
cable.
The actuator fastened to the movable part of the safety guard is
moved towards the read head by closing the door. When the switch-
on distance is reached, power is supplied to the actuator by the
inductive read head and data can be transferred.
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Housing for DIN rail mounting, IP 20
Relay output
1 read head can be connected
Coded actuator
Read head
Evaluation unit
Subject to technical modifications; no responsibility is accepted for the accuracy of this information.
The bit pattern read is compared with the code saved in the
evaluation unit; if the data matches, the safety outputs (relay output)
are enabled and the door monitoring output OUT (semiconductor
output) is also set HIGH.
Due to the combination of dynamic polling of the actuator and the
redundant, diverse design of the safety electronics with the two
safety outputs, the evaluation unit will enter the safe state with
every detectable fault.
When the safety guard is opened, the safety outputs switch off
the safety circuit and the door monitoring output (OUT) is switched
LOW. The state of the safety outputs is monitored internally by
positively driven NC contacts (relay output).
If an internal fault occurs in the evaluation unit, the safety circuit is
switched off, the diagnostic output (ERROR) is set HIGH and the
ERROR LED illuminates red.
The safety contacts on the safety switch CES can switch currents
from 1 mA to 6 A. Since small currents can be switched, the user
has the option of connecting the safety switch CES directly to a
safe control system.
Safe control systems will become increasingly important as
technology progresses.
With a switching capacity of DC 24 V / 6 A, the evaluation unit can
be connected directly to the majority of power contactors, without
further coupling modules.