Mitsubishi Electric MELSEC-A Series User Manual page 6

[DESIGN PRECAUTIONS]
l Configure a safety circuit external to the PC, so that the entire system operates
safely even if there is an external power error or if the PC is malfunctioning.
(1) The external output are as shown below, depending on the output status
setting in the external-output control setting mode:
Please be careful when performing the setting.
Refer to the Detailed Manual's Item 3.3.12 about the output status.
(2) Due to malfunction of the output element or its internal circuit, normal output
may not be obtained, or erroneous output may be performed.
For output signals that may cause a severe accident, set an external circuit
to monitor the output.
[DESIGN PRECAUTIONS]
l Do not bundle, or near the control cables and communication cables with the
main circuit and power cables. Keep them at least 100mm (3.94inch) away from
such cables. Noise may cause erroneous operation.
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DANGER
#
CAUTION