Control board
Control panel electrical circuit board CI2701 Electric actuator can form different control system according to different operation site. The frequently-used circuit board includes the logic control panel, position control board, and the on-site hand operator. etc. Inaddition, the on-site bus control board, time control board and digital displayboard will be used in special application situation. The main types of logic control panel are C12701, also called 2701 board. It is the main circuit board of INTEGRAL.POSIGAM+
Introduction
Valve position control board GAMK (optional) The valve position control board is also called the positioner. The commonly used model is GAMK, We generally call it GAMK board. The panel diagram is shown in Figure 2. This board is connected to the mother board C12701. The positioner is used to control the actuator to the valve position set by the input signal. The configuration panel of the positioner allows:
Give local positioning command Make the positioner compatible with the form ofthe input signal Set the actuator's response to loss of input signal
1. Input signal settings
The standard input signal is 4-20 mA
1.1 Run under 0-20mA
input signal
Switch 4
Switch 8
Set switches 4 and 8 to position B to operate at the 0-20 mA input signal
The output signal (position indication) is also 0-20 mA.
1.2.Run under 0-10V input signal
Switch 4
Switch 8
Switch 9
Switch 10
Switches 4, 8, 9, and 10 are placed in B to operate at a 0-10Vsignal. The output signal is 0-20mA.
2. Setting of running direction
Under the standard setting, 4 mA corresponds to the valve closing and 20 mA corresponds to the valve fully open.
Switch 3
Potentiometer connection
Place switch 3 in position B.
Connect the potentiometer to GAMK fiomposition "POT STD" to "POT REV" so that 4 mA corresponds to the valvefully open and 20 mA corresponds to the valve closing.
3.'Stay put'(fail safè location keeping) finction setting Under the control of the 4-20 mA input signal, the valve plate can be heldin a safe position when the input signal is lost by proper setting. Under standard settings, the actuator remains in the position where thesignal was lost when the control signal is lost,
On the GAMK board:
Switch 5
Switch 6
Switch 8
Place switch 5 in position B so that the actuator is fully open when theinput signal is lost.
Place switch 6 in position B so that the actuator closes when the input signal is lost.
Place switch 8 in position B to disable the 'Stay put function.
Note: In the case of an input signal of 0-20mA or 0-10V, the*Stayput' function cannot be used and switch 8 must be placed in position B to disable this function.
4. Dead zone adjustment
Although adjustments have been made at the factory, the user can also adjust via the "DEAD BAND" potentiometer. lfyou want to reduce the deadzone, you need to rotate it counter clockwise. Note: lf the dead zone is too small, the actuator will oscillate. ln general, it is not allowed to adjust the dead zone.
5.Local operation
The GAMK board allows the user to simulate a 4-20 mA signal on-site to check the health of the actuator. The local/remote control knob of the Communicator must be placed in the remote position.There is a selector switch on the GAMK board. which can be selected from AUTO,0%,MANor 100%.which represent external signal control.4mA,4 20mA adjustable, 20mA and so on. In the "MAN" position, adjust the potentiometer to simulate a 4-20 mA signal.
AUTO:Operated by an external signal 0%:Interal signal0% (standard 4mA) MAN: Internal signal can be adjusted from 0 to 100% 100%:Internal signal 100%(standard is 20mA)
6.0% adjustment Set the selector switch to the 0% position to allow the actuator to receive the valve close command (4 mA). At this point, the actuator should have two conditions.
Case 1: The actuator begins to close the valve and stops before reaching the valve closing position-limit switch.Slowly rotate the position signal potentiometer near the actuator's mechanical position indicator. At this point, the actuator starts to rotate again,stops afer reaching the valve closing position-limit switch, and the LED is still emitting light, Rotate the potentiometer in the opposite direction until the red LED goes out.
Case 2: The actuator begins to close the valve and stops when the valve close position-limit switch is reached, but the LED indicating the valve is still illuminated.
At this point, the actuator potentiometer is rotated step by step until the LED is extinguished.
7.100% adjustment Set the selector switch to the 100% position to allow the actuator toreceive the valve open command (20 mA). There are also two cases for the actuator.
Case 1: The actuator begins to open the valve and stops before reaching the valve open position-limit switch. Gradually rotate the "AD1100%"(100% adjustment) potentiometer clockwise to rotate the actuator until the valve open stroke switch. Then slowly rotate the potentiometer to the opposite direction until the green LED goes out.
Case 2: The actuator starts to open the valve and stops afier reaching the valve open position-limit switch, but the green light always flashes. Gradually rotate the "AD1100%"(100% adjustment) potentiometer counter clockwise to turn off the green LED.
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Company History
2014 Our company was registered in a rental house at the same time,the foreign trade department was established.
2015 The office address was changed to:Zhongbei Town Energy Saving Building this year our company has done 9000 certification CE certification and other qualification certifications, and the main export countries are southeast Asia, Parkistan Vietnam,Singpore and Thailand.
2016 The foreign trade business gradually increased exporting to South America Chile, Paraguay, Russia and other countries at the same time on the previous basis.
2020 Our company independently developed electric actuator sand applied for utility model patents and appearance patent certificates. The domestic and foreign trade business has grown rapidly,and the domestic trade department has been shortlisted as a fixed supplier for large enterprises such as Sinoma.Red Lion and Huaxin etc.The foreign trade department has been shortlisted as a fixed supplier for large enterprises such as Sinoma.Red Lion and Huaxin etc.The foreign trade department has undertakenmajor projects such as large-scale sewage treament.
2021 The annual sales volume of our companys electric actuators has approached 2,000units At the same time the following export qualifications have been handled:ROHS SILATEX etc,among them,the explosion-proof products have also passed the certification of the National Institute of Explosion-proofing.The main products have also passed the authoritative quality.
Status of major certification acquisition
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