Mô đun Honeywell Control Logix TC-CCR013 Redundant Control Net Interface Module
đại lý TC-CCR013 | nhà phân phối TC-CCR013
Honeywell Control Logix TC-CCR013 Redundant Control Net Interface Module
Installation steps of PLC field installation matters needing attention
After arriving at the site, before the system installation, it is necessary to consider whether the installation environment meets the requirements of the use environment of PLC, which can refer to the user manual of various products. But no matter what PLC, can not be installed in the following places: places containing corrosive gases, direct sunlight to the place, the temperature in a short time of rapid change in the upper and lower value of the place, oil, water, chemicals easy to enter the place, there is a lot of dust, vibration and installation parts will cause displacement.
If it must be used in the above environment, the appropriate control box should be made for the PLC, with specifications and necessary protective measures. If you need to use it at very low temperature in the field, you can use the control box with heating function. How to make these protective boxes or control boxes, each manufacturer and the qualified system integrator will provide the corresponding supply and design for the customer.
When using control box, in the position of the control cabinet OpenPLC installation should pay attention to the following items: control the air flow is smooth in the cabinet (between different devices must maintain proper distance), transformer, motor controller, inverter, such as whether to keep a proper distance with PLC, power line and signal line of the separation configuration, components of the installed position is conducive to the maintenance of in the future, whether to need to set aside space, for future system expansion.
In addition to the above notes, there are other notes to pay attention to.
The first important thing is electrostatic isolation. Static electricity is an invisible killer, but many people often ignore it because it may not be life-threatening. In dry places in northern , static electricity on the human body is the cause of static electricity damage to electronic components. Even if you are struck by static electricity, it is only a slight numbness, but it can be fatal to PLCS and any other electronic device.
To avoid static shock there are three ways: in the maintenance or replacement of components, please first touch the metal ground to remove static electricity; Do not touch the connector or IC pin on the circuit board; When the electronic components are not in use, please use the package with static electricity isolation and place the components inside. Imagine that the components of a PLC are a delicate baby, and that static electricity will cause the baby’s death. It will be easier to treat the problem in the right way.
During RACK installation, after determining the positions of various control components and slots in the control box, mark the holes according to the size shown on the drawing, and tighten the fixing screws until the base is firm after drilling. Before installing the power supply module, it is necessary to pay attention to whether the grounding end on the power cord is connected to the metal housing. If not, it should be connected. A bad grounding can lead to a series of problems, including static electricity, surge, external interference, and so on. Due to ungrounded, often PLC can also work, therefore, a lot of inexperienced engineers mistakenly think that grounding is not so important. It’s like climbing a mountain without a protective cable. It doesn’t work when you’re moving forward, but once you slip up, without that rope, your life is over. PLC grounding, is equivalent to the PLC on the protection cable.
When I/O module is installed, the following matters should be noted: before I/O module is inserted into the slot on the rack, it is necessary to confirm whether the module is a pre-designed module by itself; When I/O module is inserted into the guide slot on the rack, it must be inserted to the bottom to ensure that the contact points are closely connected. The fixing screw of the module must be locked; When the terminal block is inserted, the upper and lower screws must be tightened. Due to the influence of transformers and motors on site, there will be some vibration. If these screws become loose, the module will be released from the rack.
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Describtion:
(2) the motor is often started under full load or overload, which requires that the starting torque is large, can run normally during overload, and can adapt to a certain range of voltage fluctuations and frequent start-up requirements.
(3) in order to improve the refrigeration capacity of the equipment, the motor is required to have high efficiency.
(4) when the motor is sealed in the steel shell of the compressor, the working environment temperature is mostly above 70℃, and the temperature rise can reach about 100℃ when working.The winding coil and insulation material of motor are required to be resistant to high temperature and aging.
(5) because the motor is vulnerable to the impact of electromagnetic force caused by starting current, the impact of refrigerants entering the shell, the thermal shock of rapid evaporation and the mechanical vibration when starting and stopping are required, the electromagnetic coil of the motor is required to have a certain mechanical strength and can withstand vibration.
:
1,Is it the product brand new or not?
It depens the resource of the products and your choice. Most of the time we provide the brand new for our customer, If have special inquiry, then will according to the actual situation.
2,Is there a warranty period?
Yes, there is.
Brand new: 1 year.
Second-hand: 6 month.
3, What payment can acceptted ?
We have TT,Paypal and western union for your choose.
4, Is it all the products have the original package?
For the brand new all have, but for the seconding hand,will according to the actual situation.
5,When will the goods be shipped after the order is placed?
Usually the delivery time is 5-7 days, but we will give you the accurate date within 2 days after placed the order.
