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A73CPU-S3 Moving CPU unit
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MITSUBISHI A73CPU-S3 Product information and technical parameters:
Brand: MITSUBISHI
Name: Moving CPU unit
Model: A73CPU-S3
Special multi axis positioning controller for NSD servo system.
Program capacity: Max 60K step.
Input / output points: 1920 points.
Control AC motor required I/O points with PLC control AC motor,
Signal and feedback signal is used as the input signal of PLC,
The control of AC motor is accomplished by using the output signal of PLC to drive the contactor.
For example, the AC motor is controlled by a Y- delta starting with PLC,
Generally need to occupy 4 of the PLC input and 3 output points,
PLC control of a one-way operation of the cage type motor,
4 input points and 1 output points are occupied, and a reversible motor is controlled,
5 input points and 2 output points are needed to control a unidirectional operation of variable pole speed control motor,
5 input points and 2 output points are required to control a unidirectional operation of the rotor AC motor,
3 input points and 4 output points are needed to control a reversible running winding rotor AC motor,
Requires 4 input points and 5 output points.

Output points: 16 points.
Voltage: DC24V/AC240V, 2A/1 point, 8A/1 public end.
OFF leakage current: 0.1mA.
Output type: relay output.
Response time: 12ms.
8 point /1 a public side.
20 point terminal station.
With the surge absorber.
CE certification.
The number of I/O thyristor DC motor control required tube DC motor speed control system is the main form of DC speed regulation,
The thyristor rectifier unit is used to supply power to the DC motor A73CPU-S3 A73CPU-S3
PLC control of the DC drive system, the input of the PLC in addition to the main signal outside the signal,
We need to consider the switching signal, the fault signal transmission device, brake signal and fan fault signal.
The output of the PLC mainly consider the speed command signal positive 1~3 level, 1~3 level, allowing reverse switching signal and brake open signal etc A73CPU-S3. .
In general, a reversible DC drive system controlled by PLC is approximately 12 input points and 8 output points,
An irreversible DC drive system requires 9 inputs and 6 output points.
MITSUBISHI PLC is the main product in the production of MITSUBISHI motor in Dalian.
It uses a kind of programmable memory for its internal storage procedures,
Execute logic operation, sequence control, timing, counting and arithmetic operations, user oriented instruction,
And through digital or analog input / output control of various types of machinery or production process A73CPU-S3.
Control solenoid valve required I/O points by the action principle of the solenoid valve can be known,
A single coil solenoid valve with PLC control to 2 input and 1 output,
A double coil solenoid valve requires 3 inputs and 2 outputs,
A button needs an input; a light sensitive switch needs 4 or 2 inputs,
A signal lamp needs 1 output, band switch,
Several bands are required for several inputs,
In general, a variety of position switches are required to take up 2 input points. Input voltage range: AC100 ~ 120V.
Output voltage: DC24V.
Output current: 0.6A.
Relay output interface circuit of PLC
Working process: when the internal circuit output digital signal 1,
There is a current flowing through, the relay coil has a current, and then the normally open contact is closed,
Provide load current and voltage.
When the internal circuit outputs a digital signal 0, there is no current flowing through it,
The relay coil does not have a current, and the normally open contact is broken off,
A current or voltage that is disconnected from the load.
It is through the output interface circuit to the internal digital circuit into a signal to make the load action or not action.
I/O points is an important indicator of PLC.
Reasonable selection of I/O points can not only satisfy the control requirements of the system,
And the total investment of the system is the lowest.
The input and output points and types of PLC should be determinned according to the analog quantity and switch quantity of the controlled object,
Generally an input / output element to take up an input / output point A73CPU-S3.
Taking into account the future adjustment and expansion,
In general should be estimaated on the total number of points plus the amount of spare 20%~30% A73CPU-S3.
The following describes the centralized control system I/O points of the estimate.


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