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Fault 1: The actuator does not act, but the control module power supply and signal light are on.
Processing method: Check whether the power supply voltage is correct; whether the motor is disconnected; whether the ten-core plug is disconnected from the end to the end of each line; whether the motor, potentiometer, and capacitor are connected to each other are good; whether the control module is good is judged by the comparative interchange method.
Fault 2: Actuator does not move, power light is on and signal light is off.
Processing method: Check whether the polarity of the input signal is correct; use the comparative swap method to judge whether the control module is good.
Fault 3: Adjusting the system parameters causes the actuator to oscillate frequently.
Processing method: Adjusting the parameters of the regulator is not suitable, which will cause the system to produce different degrees of oscillation. For a single-loop control system, the proportional band is too small, the integral time is too short, and the differential time and differential gain are too large to cause system oscillation. It is possible to select these parameters reasonably through the method of system tuning so that the loop can maintain a stable speed.
Fault 4: The actuator motor heats quickly, oscillates and stops for a short time.
Treatment method: Use the AC 2V voltage profile to measure whether the input of the control module is AC interference; check whether the signal line is isolated from the power line; whether the potentiometer and potentiometer wiring are good; whether the feedback component is operating normally.
Fault 5: Actuator movements are stepping, crawling, and slow.
Treatment method: Check whether the signal movement time from the operator is correct.
Fault 6: Actuator position feedback signal is too large or too small.
Treatment method: Check whether the "zero" and "stroke" potentiometer adjustments are correct; replace the control module judgment.
Fault 7: After the signal is added, the actuator is fully open or fully closed, and the limit switch is not stopped.
Treatment method: Check whether the function selection switch of the control module is in the correct position; whether the “zero†and “stroke†potentiometers are adjusted correctly; replace the control module to judge.
Fault 8: The actuator oscillates and tweets.
Treatment method: Mainly because the sensitivity is adjusted too high, the insensitivity zone is too small, and it is too sensitive. As a result, the small loop of the actuator can not be stable and oscillate. The sensitivity of the counter-clockwise fine-tuning potentiometer reduces the sensitivity; the fluid pressure changes too much and the actuator thrust is too high. Inadequate; large selection of control valves, valves often work at a small opening.
Fault 9: The actuator does not operate normally, but the motor does not stop after the limit switch is actuated.
Treatment method: Check whether the limit switch and the limit switch wiring are faulty; replace the control module to judge.
Fault 10: The actuator belt is broken.
Treatment method: Check whether the actuator internal transmission is damaged or not; "Zero" and "travel" potentiometer adjustment is correct; limit switch is correct.
In order to avoid the interference of the power line, single-seat electric control valve signal cable adopts shielded cable and is shielded from the power cable; the power supply wiring must have enough capacity to meet the requirements of the actuator rated current and starting current; install the ground wire and connect the power supply When disconnecting the signal line, the power should be cut off first to prevent electric shock. The connection terminal of the power supply, creepage distance and clearance should be greater than 8mm; regular inspection of the aging problem of the seal ring, timely replacement; , prevent short circuit.
Name: According to the name, it is divided into: diamond net, chain link net [1], rhombic net, ring net, ring net, hook net, flexible net, anchor net. Zinc-Diamond Mesh, plastic coated diamond mesh (pvc, pe plastic),
Dip plastic diamond mesh, spray plastic diamond mesh.
According to use: decorative diamond net, high beam diamond net (simple fence net), protective diamond net
Another classification: stainless steel diamond mesh (materials 201, 302, 304, 304L, 316, etc. do not need surface treatment).
PVC dip
Material: high quality low carbon steel wire (iron wire), stainless steel wire, aluminum alloy wire.
Weaving and characteristics: uniform mesh, flat surface, simple weaving, crocheting, beautiful and generous;
stainless steel
High-quality mesh, wide mesh, thick wire diameter, not easy to corrode, long life and strong practicability.
Uses:
Widely used in highway, railway, highway and Other Fence network facilities. It is also used for interior decoration, raising chickens, ducks, geese, rabbits and zoo fences. Protective nets for machinery and equipment, conveyor nets for machinery and equipment. Fences in sports venues, protective nets for road green belts. After the wire mesh is made into a box-shaped container, the net box is filled with random stones and the like to become a gabion net. It is also used to protect and support seawalls, hillsides, roads and bridges, reservoirs and other civil engineering. It is a good material for flood control and flood control. Can also be used for handicraft manufacturing. Warehouses, tool room refrigeration, protective reinforcements, marine fishing fences and fences at construction sites, rivers, slopes with fixed soil (rock), residential security, etc.
Example of diamond net used as animal purse:
Application principles and examples of the diamond net stadium:
Tennis court galvanized chain link net system Tennis court that provides protection and security economically.
Tennis Court Galvanized Chain Link Fence For many years of maintenance-free, durable protection made the galvanized chain link tennis court system fence selection for decades. Master Harco coats all steel chain link components with zinc proven anti-corrosion technology for more than 200 years. The chain link tennis court system is easy to install and provides a high level of security.
Application: Galvanized tennis court chain link fence system has long been inclined to define property lines, economically attach court facilities and value-added property. The chain link system also allows deductions for easy attachment wind control.
Features and Benefits: Tennis court chain link fence systems are commonly used because they are durable and easy to install. The full steel wire component of the master haar galvanized chain link tennis court system is hot-dip galvanized and secured to guarantee a 12-year-old coating. The posts between the frame terminals that are used to attach the chain link structure are made of aluminum, resulting in maintenance-free security. Tennis court systems used in some installations are made of pressed steel and cast iron for added durability.
Use of diamond net for canal riverbed:
â— Control and guide rivers and floods
The most serious disaster in rivers is the erosion of river banks by water currents, which causes flooding, which results in heavy losses of life and property and large amounts of soil and water loss. Therefore, when dealing with the above problems, the application of diamond mesh structure (gabion and padding) has become one of the best solutions, which can permanently protect the river bank.
â— Channel canal riverbed
The construction of the channel involves the stability of slopes and riverbeds. Therefore, the diamond-shaped mesh pad laying structure is the main method used in the reconstruction of many natural rivers and the excavation of artificial channels for hundreds of years. It can effectively and permanently protect the river bank or river bed. It also has the function of controlling water flow and preventing water loss, especially in environmental protection and water quality maintenance, which has excellent effects.
â— bank revetment
The diamond mesh gabion and padding is a very successful example of river bank protection and its slope foot protection. It takes full advantage of the diamond mesh and achieves the ideal effect that other methods cannot achieve.
1. The flexible structure can adapt to the change of the slope without being damaged, and has better safety and stability than the rigid structure;
2. Strong anti-erosion ability, can withstand the maximum water flow speed up to 6m / s;
3. The rhombic mesh structure is inherently permeable, and has a strong tolerance for the natural action and filtration of groundwater. Suspended matter and silt in the water can be precipitated in the rockfill gap, which is conducive to the growth of natural plants. Gradually restore the original ecological environment.
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Jieyang Xinxin Industry and Trade Co., Ltd. , https://www.gdxxgm.com