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Installation
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CPS-MC341-A1-111 Reference Manual (Hardware)
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42
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Connection using a coaxial cable
The example below uses a coaxial cable to connect the Controller to an external device.
Use this type of cable if the distance between the signal source and the product is long.
For each analog input channel, connect the core wire to the signal line and connect the shielding to
ground.
Connection using a shielded cable
The example below uses a two-conductor twisted shield cable to connect the Controller to an
external device. Use this type of cable if the external device is located at a distance from the product
or if the connection requires higher noise immunity. For analog input channel of the product and for
ground, connect the core wire to the output of the external device and ground respectively. Also,
connect the shielding to ground.
CAUTION
Removing the connector plug by grasping the cable can break the wire. Always grasp the
connector to remove it.
Tightening torque of the supplied connector is described below.
DEGSON : 0.19 N·m, PHOENIX CONTACT, PTR MESSTECHNIK : 0.25 N·m
Strip off approximately 7mm (plus or minus 0.5mm) of the covered part of a cable to connect
with the connector.
If the signal source contains over 1MHz signals, the signal may affect the cross-talk noise
between channels.
If the product and the signal source receive noise or the distance between the product and the
signal source is too long, data may not be input properly.
An input analog signal should not exceed the maximum input voltage (relate to the product
analog ground). If it exceeds the maximum voltage, the product may be damaged.
When an input terminal is unconnected, the conversion data is undefined. Connect all the
unused analog input channels to analog ground.
The signal connected to an input channel may fluctuate after switching of the multiplexer. In
this case, the cable between this product and the signal source can be shortened or a buffer
Analog Input
Analog Input
Ground
Terminal
Signal Source
Shield Cab le
