A-2
[DESIGN PRECAUTIONS]
[INSTALLATION PRECAUTIONS]
Some faults of this unit may keep the outputs on or off. An external monitoring
circuit should therefore be provided to check for output signals which may
lead to a serious accident.
Not doing so can cause an accident due to mis-output or misoperation.
If a communication error (including cable disconnection) occurs during
monitoring with the GOT, communication between the GOT and master
station is interrupted, disabling operation.
When using the GOT to configure a system, assume that a GOT
communication error will occur and configure a system in which switches used
to perform significant operation for the system are provided on any device
other than the GOT.
Not doing so can cause an accident due to mis-output or misoperation.
Do not bunch the control wires or communication cables with the main circuit
or power wires, or lay them close to each other.
As a guide, separate the lines by a distance of at least 100mm (3.94 inches)
otherwise malfunctions may occur due to noise.
Be sure to shut off all phases of the external power supply used by the system
before mounting or removing this unit to/from the GOT.
Not doing so can cause a unit failure or misoperation.
WARNING
CAUTION
WARNING
