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Safety switch with relay output and the option of
connection 1 - 2 or 1 - 4 read heads
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Based on the concept of the safety switch CES-A-ABA-01, the evaluation unit
of this series has the option of connecting 1 to 2 or 1 to 4 read
heads. As a result, up to four safety guards can be monitored. The
evaluation unit also possesses connection terminals for a start button and
for the feedback loop for monitoring power contractors. The start button and
the feedback loop are monitored for short-circuits.
A DIP switch on the evaluation unit allows the user to specify the following
options:
- the number of read heads from 1 - 2 or 1 - 4 read heads
- manual or automatic start-up
- operation with or without a monitoring circuit |
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Features:
- Evaluation unit can be used for 1 - 2 or 1 - 4 read heads
- Teaching a new actuator using simple aids
- Unlimited number of teach-in operations possible
- Monitored start button and feedback loop
- Safety category 4 according to EN 954-1 (according BG)
- Large response area of 15 mm with additional hysteresis
- Approval by BG, UL, SIBE
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Teach-in function of the evaluation unit:
A “teach-in operation” lets you configure or reconfigure the entire
system as required. What’s more, a new actuator can be taught as many times
as is necessary during servicing, provided the necessary precautions are
taken (placing a jumper on the evaluation unit) |
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A system with many advantages:
The non-contact safety switches CES-A-AEA... possess a relatively large
response area of 15 mm. Compared with mechanical safety switches, the
installation of the unit is easier because of a large mechanical tolerance
for the door alignment. Therefore the assembly and maintenance costs are
much lower. The evaluation unit is connected to the read head or can be
plugged in using a M8 plug connector. In this way, the wiring errors are
reduced to a minimum.
With a switching capacity of 24 V DC/6 A or 230 V AC/1,5 A, the
evaluation unit can be connected directly to most power contactors without
additional modules.
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(Click on picture to enlarge) |
The Safety Switch CES – a new safety concept:
With the new CES safety switch , EUCHNER has launched a comprehensive
safety concept. Users can monitor the safety guard, perform wiring and
evaluate tasks, and even monitor externally connected devices – all just
using an on-line system. The highest possible standards in safety can
therefore be achieved cost-effectively, without the need for additional
equipment such as emergency tripping devices.
The strict safety requirements for safety category 4 / EN 954-1 with BG
approval are met with the capability of the non-contact safety switch
CES-A-AEA-04B to monitor externally connected devices built-in.
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