Dc governor function module-PID piece of introduction:

 dc governor PID module mainly used for external loop of USES, require the adjustment of the PID input can is tension sensor, adjust the position of the rod or other sensors, such as pressure, flow feedback. It has the following features:

A: independent adjustable gain and time constant;

B: additional one order filter;

C: there are filtering or no filtering P, PI, PD, PID, can separately choice;

D: has the conversion ratio of each input and the divisor must;

E: independent are aligned limit;

F: output conversion device (with trim);

G: gain with diameter, and is suitable for the change of control center drive take-up.

Dc governor PID module module chart are as follows: (the figure PID)

Dc governor PID input:

1: the input input can be position or tension sensor feedback, also can be the benchmark or bias signals

Scope: plus or minus 300.00%

System default: 0.00%

Mark number: 410

Ratio 1: the ratio of the input signal factor 1

Scope: positive and negative 3.0000

System default: 1.0000

Mark number: 412

1: the divisor input signal divisor factor 1

Scope: positive and negative 3.0000, note: when is 0, will produce the zero output

System default: 1.0000

Mark number: 418

Input 2: this an input can be position feedback or tension feedback, also can be a benchmark or bias signals

Scope: plus or minus 300.00%

System default: 0.00%

Mark number: 411
Ratio 2: the ratio of the input signal factor of 2

Scope: positive and negative 3.0000

System default: 1.0000

Mark number: 413

2: the divisor input signal divisor factor 2

Scope: positive and negative 3.0000, note: when is 0, will produce the zero output

System default: 1.0000

Mark number: 414

Integral failure: this is a digital input, is really true that a reset, at this time the integral PID module as a function of PD

Scope: ON/OFF

System default: OFF

Mark number: 409

Start: this is a digital input signal, the prohibited make PID output

Scope: banned/start

System default: start

Mark number: 408
Dc governor PID piece of output:

PID output: this is the PID output terminal, appeared in the diagnosis of the menu

Scope: plus or minus 315.00%

Mark number: 417

PID error: this is input 1 and 2 of the difference of the input, appear in the diagnosis of menu

Scope: plus or minus 105.00%

Mark number: 415

Ground-clamp PID: this is a logical output, and show whether effective, to limit the PID in diagnosis menu

Scope: pseudo/true

Mark number: 416

Dc governor other parameters:

Percentage gain (P)

This is a pure gain coefficient, it makes the whole PID transmission function move up or down, but not influence the time constant, take P = 10.0 means that for 5% of the error, the proportion of PID output for: 10 * [1 + (TD/TI)] * 5%, that is to say in TD < < TI, about 50%.

Scope: 0.0 to 100.0

System default: 100.0

Mark number: 404

With the change of diameter after gain: this is along with the change of the diameter of the module, the output module according to diameter change the gain. The gain is mainly used for variable speed winder, the diameter of the compensation changes, thus compensation inertia. In MODE to zero, the way a gain the P gain dominant than.

Scope: 0.0 to 100.0

Mark number: 475

Dc governor PID work MODE (MODE)

The parameters with diameter changes decision module output rules

MODE = 0, along with the change of the gain in diameter after = constant = P

MODE = 1, with the change of the gain = diameter after A * (diameter-minimum diameter) + B

MODE = 2, after the change with diameter gain = A * (diameter-minimum diameter) ^ 2 + B

MODE = 3, along with the change of the gain in diameter after A * (= diameter-minimum diameter) ^ 3 + B

MODE 4, with diameter = change the gain after A * (= minimum diameter) in diameter-^ 4 + B

Scope: 0 to 4