User’s Manual
7
1.4.1 Design Guidelines
Note the following requirements for incorporating the OP7200 operator control panels
into your application to comply with CE requirements.
General
•
The power supply provided with the Tool Kit is for development purposes only. It is the
customer’s responsibility to provide a CE-compliant power supply for the end-product
application.
•
When connecting the OP7200 to outdoor cables, the customer is responsible for provid-
ing CE-approved surge/lightning protection.
•
Rabbit recommends placing digital I/O or analog cables that are 3 m or longer in a
metal conduit to assist in maintaining CE compliance and to conform to good cable
design practices. Rabbit also recommends using properly shielded I/O cables in noisy
electromagnetic environments.
•
While the OP7200 meets the EN61000-4-2 (ESD) requirements in that it can withstand
contact discharges of ± 4 kV and air discharges of ± 8 kV, it is the responsibility of the
end-user to use proper ESD precautions to prevent ESD damage when installing or ser-
vicing the OP7200.
•
To meet electromagnetic compatibility requirements, and in particular to prevent mis-
operation or damage from electrostatic discharges, connect the bezel to a protective
ground via a low-impedance path as explained in Section 6.1.
Safety
•
For personal safety, all inputs and outputs to and from the OP7200 must not be con-
nected to voltages exceeding SELV levels (42.4 V AC peak, or 60 V DC). Damage to
the Rabbit 2000 microprocessor may result if voltages outside the design range of 0 V
to 5.5 V DC are applied directly to any of its digital inputs.
•
The lithium backup battery circuit on the OP7200 has been designed to protect the bat-
tery from hazardous conditions such as reverse charging and excessive current flows.
Do not disable the safety features of the design.
1.4.2 Interfacing the OP7200 to Other Devices
Since the OP7200 operator control panels are designed to be connected to other devices,
good EMC practices should be followed to ensure compliance. CE compliance is ulti-
mately the responsibility of the integrator. Additional information, tips, and technical
assistance are available from your authorized Rabbit distributor, and are also available on
our Web site at
.
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