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Operation of a device without a conventional control system

Samples fail to adjust the valve operation. In order to install the operator is not the case, it means to have the effect of the actuator. The author made a simple adjustment of its connection (see Figure 2), the principle described below; 1. When the regulator is \(1) thousand in the absence of any defense for the case, K. And \? an input circuit. ? together with a parallel, and the signal joint position feedback from the actuator signal ① ② side. As the servo amplifier circuit in each of the parameters set it_k equal, so the split are the same, then the pre-magnetic amplifier in the servo amplifier produced an equal and opposite magnetic field, so no servo amplifier output voltage. Thus no effect on the actuator, which operator in the \(2) When the need to operate, just press the jl =, so that jl =, and \with the previous one. Parallel form. Servo amplifier song ②, ⑧ ended input actuator feedback signal, which operator in the \2. When the regulator is in \the same. 3. Regulator in the \① ② servo amplifier input signal from the regulator output @, @, and servo amplifier eye ⑦,[link widoczny dla zalogowanych], @ end of the signal from the actuator position feedback information age, number. This operator in the \We can see from the above principle, although the operator to remove 3, but the system still functions with the operator in the figure jl =, a regulator on the hardware using auto ~ soft hand of more than one automatic switch contacts, or add an The synchronous switch. jl =, and Xi'an Instrument Factory production of DTL-type regulator for a 321-4 five consistent. It should be noted, because the servo amplifier's input circuit parameter is actually there are differences, so when L-: and ? and then when the diversion is not possible as the results of the servo amplifier when debugging in full-scale range, there will be power signal output. If installed in the system,[link widoczny dla zalogowanych], there will malfunction. Check the servo amplifier which, in addition to routine check, but also deal with the ? ... and then later use the same signal source, for 0 ~ 10mA dynamic calibration, in this case, the servo amplifier's output signal should be zero. L4 sets of the original factory air volume control system is not operating according to the above principle of wiring devices and after the run has been good. (Hubei husband total control of governing non-ferrous metal smelter Branch Company ■ Mao Jian) one by one. , ... Failure phenomenon of remote pressure gauge normally correspond to the value recorded for the second night, floating to fixed. Mao's hand count will have normal frequency table indicating the instantaneous flow, power, electromagnetic counter for three minutes to stop counting. Maintenance before, record the instantaneous flow indication. Remove the remote pressure gauge output line,[link widoczny dla zalogowanych], this time with a multimeter measure the resistance under the pressure of steam, and recorded. Steam stop, cutting off power, remove the cover on a table, remove the float to. Together with the socket will remove the detection coil. Installed in accordance with the order on the original cover well sealed. Normal for steam pipes. L0-core cable connected with the detection coil and the secondary instrument. Using a 2W, 5o0n sliding wire wound resistor pressure gauge remote access to secondary instrument signal input, well adjusted sliding resistance, so resistance consistent with the records. Power, with the float (or other metal rod) into the detection coil and adjust the insertion depth. At this point, the second instantaneous flow meter indicates the depth of insertion should be with the float and change. When the instantaneous - meter access secondary instrument count the amount of pulse frequency output guillotine. If there is no electronic counting frequency meter, the available electromagnetic counter stopwatch guillotine jump out of ten words from time to time, to calculate the speed of the word jump. This method is composed of the source signal simulation occurs, its components, the instruments are not only convenient and practical. Check the power supply voltage of each group were normal. Instantaneous flow with instructions, an oscillator, the signal detection amplifier circuit to normal. Adjust sliding resistance,[link widoczny dla zalogowanych], the instantaneous flow direction changes, the pressure compensation circuit normal operation. No pulse output measuring pulse transformer. Short D Kuang, (2CW02), electromagnetic counter quick flip,[link widoczny dla zalogowanych], single-shot and zoom drive circuit to normal. Cover with a multimeter 0D potential negative points against Japan. Counter work, the potential value of a jump the gap, the maximum potential of about 18V. Counter stops working, the potential for a constant 24V. Welding

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