LSI-Robway RCI-1550 LM, Инструкция по эксплуатации

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5.8.3.
Analog Input Section
The analog section is takes advantage of the CPU’s on board 10bit ADC. This board can support
up to four load cells, three angle sensors and three length sensors.
5.8.3.1. Sensor Excitation Supply
The excitation supply provides power for all the sensors connected to the Analog section.
The nominal output is 4v (or 12V for 4-20mA transducers). Do not connect either the
+VEX or the –VEX outputs to any external supplies or chassis.
5.8.3.2. Load Cell Inputs
The analog input section is capable of accepting load cells with sensitivities of 1, 2 or
3mV/V. Load cells of different sensitivities can be used on the one RCI-1550 at the one
time. The gain setting is controlled via software.
5.8.3.3. Angle Inputs
Either oil damped or electronic inclinometers can be connected to the RCI-1550’s angle
inputs. Note that all angle sensors must be the same type and may not be mixed. The
analog section must be configured, via a single jumper link to accept the appropriate type
of sensor. See connection diagram in rear of manual.
5.8.3.4. Length Inputs
The length inputs are designed to accept a 500  length sensor. No adjustments or
configurations are required on these inputs.
5.8.4.
Digital IO Section
Refer to drawings at the rear of this manual for this item.
The DIO section provides general-purpose inputs and output capable of sensing the state of 8
switch inputs and controlling 8 relay outputs. Connection is via plug-in Mini Combicon (R) screw
terminals. The DIO section is very versatile and reference should be made to the installation
drawings for details.
The digital section features LED indicators for input and output status. If the digital section detects
an input signal (voltage) the corresponding LED will be illuminated. If an output LED is on then the
given output relay is closed.
5.8.4.1. I/O Connections
Refer to drawings at the rear of this manual for this item.
5.8.4.2. Inputs
Refer to RCI-1550 User Wiring Detail – DIO2.
The DIO section contains 8 isolated inputs that require an external voltage source to
activate. This means that each input has two connections, a positive and a negative. This
allows the digital section to sense either switched high or switch low signals. To sense a
switched low signal, as would come from a switch with one side grounded, the output of
the switch is connected to the negative of the desired input and the positive side of the
input is tied to the supply. For a switched high signal as would come from a switch
connected to the supply, take the switch output to the positive of the desired input channel
and ground the negative side.
The DIO also contains a dedicated ATB input. This only requires a simple switch closure
between the two associated pin. No voltage is require to be applied to this input
Finally the DIO section has a disable input which forces the outputs to a predefined state.
This input has the same properties as the eight data inputs.