SU560208A1 - Device for controlling proportional actuators - Google Patents

Description

Consider the formation of a control signal in the 1st output channel (channels 6).

Suppose that in the initial state in memory block 5, in the 1st channel, the analog signal F was remembered, which means that on the 1st output of the memory block, and consequently, in the 1st output channel of the device and in 1 input channel of the address setting unit 4 in the initial state, there is an analog signal F.

When a command is received via channel 8 from the ACU to the 1st channel of the address setting unit 4, the analogue signal F: passes to the 1st direct input of the summation unit 3, at the output of which the analogue signal F is also set in the input channel of the memory 5 On channels 9, a command to select the address of the memory block has not yet been sent.

Upon submission of a digital code through channels 10 to a digital-to-analog converter 1 from the ACU and a command for selecting a character through channels 7, the block 2 assigns a sign to the 2nd direct or inverse inputs of block 3 (depending on the command for selecting a sign) sends an additional analog signal proportional to the digital AF code. At the output of the adder 3, and consequently, in the input channel of the memory block, the analog signal is set to

F: F + DF.

With the arrival of channels 9 from the command and control module to store the new value of the analog signal, the 1st channel of the memory block 5 is opened, and the 1st channel of the 4 block of the address of the actuator is closed. In the memory block, it is remembered until the next access to it by the new value of the analog signal F

At the output of the memory block, and consequently, a new analog signal appears in the corresponding output channel 6 of the device and in the input channel of the address setting block

Fvyh F F + DF,

which is the new source signal for the next cycle. This cycle of operation of the device ends. The remaining channels work similarly.

The application of the proposed device will simplify the algorithms for the automated control of technological processes, increase the reliability of the operation of direct digital control systems and reduce

the number of parameters entered into the computer, and the corresponding equipment, since the use of such devices does not require input into the computer information about the position of the actuator.

P-rmula of the invention

A device for controlling proportional actuators, comprising a digital-to-analog converter connected to the input channels of the device, a memory block whose outputs are connected to the output channels of the device, characterized in that, in order to expand the scope of application, the output increment sign setting unit is installed the signal, the summation unit and the address setting unit of the actuator, the output of which is connected to the first direct input of the summation unit, the second direct and inverse inputs of which connected to the outputs of the block mark specifying nrirascheni output signal associated to its input to an output digital-to-analog converter, and summing unit output is connected to the memory unit inputs and block specifying address. Sources of information taken into account in the examination:

1.Avt. St. No. 348990, cl. G 06D 7/00, 1970.

2.Catalogue of ZNIITEPRIBORODROENIYA, 1973, vol. 7, section 9, description of PC-5, PKP-2M (prototype).

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