DSM modular intelligent electric valve controller, the use of advanced micro-processing technology, highly integrated IC chip, as well as long-life power output device to receive from the upper meter of the DC4 ~ 20mA signals and under-regulation of electric actuator valve DC4 ~ 20mA position feedback signal (or the potentiometer of the "three-line" signal), output "open" and "off" signal to the valve opening to achieve the control and regulation. DSM modular intelligent electric valve controller, with digital setting, display, limit, motor locked rotor protection, disconnection alarm and valves from the school and other advanced features. Can be reliable, stable and accurate control of valves, dampers and baffles and other regulating structures. It can be widely used in power generation, metallurgy, petroleum, chemical and other fields.
DSM modular intelligent electric valve controller not only with the implementation of single-phase AC motor is equipped with (such as the DKJ and DKZ electric actuator), but also with the executing agency for three-phase AC motor, the electric device figures. DSM modular intelligent electric valve controller and electric valves used in conjunction with the traditional after the reliability, stability, accuracy, etc. can increase several times over, in order to transform and improve the old-fashioned electric actuator has brought new vitality .
Main features:
● Intelligent Calibration: opening of the valve position and valve position output current "zero" and "full transfer" calibration without the need to adjust potentiometer without the need for complex baseline measurement instruments debug, as long as the actual valve "full off" and "fully open" position each time I press the button, then set the range with a new automatic and accurate revised 0-100%, and DC4-20mA.
● electric zone valves can be set the number of parameters, the smallest overshoot, good stability, high control accuracy.
● Open to freedom: to change the valve opening and valve to the mode of action, the need to replace any wiring, through the key set to complete.
● Smart Step: You can avoid oscillation or too "rush" phenomenon, to improve control accuracy.
● super error detection alarm function: the event of failure of the actuator, intelligent error detection error detection alarm function and alarm automatically to show the cause of the malfunction actuator, accurate and direct the operational status of the actuator. Depending on the cause of the malfunction, showing the different alarm signals, will greatly shorten the troubleshooting time required for the user as soon as the actuator to return to normal working condition.
● Automatic Phase Protection: Previously, in the field wiring, must ensure that available to the implementation of three-phase alternating current phase sequence is correct, because once the phase-sequence errors, will result in motor rotation is not correct, then damage valves and actuators. Now the user completely eliminated, the troubles, wiring phase sequence no longer need to consider the issue. When the on-site wiring phase reversed, the phase synchronizer will automatically correct the phase to ensure that the direction of the valve according to instructions to execute. Namely, the actuator is always received the opening command to open a pre-set the direction of rotation, phase sequence will not be transposed to the opposite direction.
● Exception protection:
Motor over-current protection: When the actuator motor is running, due to various reasons there the motor over-current, DSZH220 will automatically stop the motor turn.
Instantaneous reversal protection: When the actuator is turned in one direction, for example, to open valve actions are being implemented, if the received command off valves, actuators within the control logic will be a pre-set time delay before the implementation of off valve command . This technology will reduce the impact of motor current to extend the life of power components, while preventing the impact of load on the valve stem, gear boxes and other mechanical transmission device may cause damage, thus effectively protect the motor.
Valve Casey Protection: If the implementation of the device could not overcome the necessary torque to start the valve, valve Casey conditions existed. When the actuator receives the start signal on or off, if the valve is stuck in the pre-set time, no action, the internal circuitry will disconnect the appropriate contact, forcing the suspension of the operation of devices at the same time, issue a corresponding The alarm signal, this signal can also be another RS485 output.
● can be broken when the digital input signal to set the alarm and protection methods.
● loss of use of non-read-write memory device, modify the parameters of convenience, power permanent preservation.
● Auto / Manual switch without disturbance, interference is good.
(Motor AC220V implementing agency for the direct control of motors for the AC380V to AC380V implementing agencies need to increase the power-driven devices)
Technical Data
1. Use of
• Suitable actuators: power supply voltage of 220V ± 15% (AC), power is less than 150W, sharing side, open and close three-line control opening and closing, stop the motor.
* Working environment: temperature: -20 ℃ ~ 55 ℃. Relative humidity: less than 90%.
2. Input signal
* Adjustable input signal: 4 ~ 20mA (DC), enter the load impedance less than 150Ω.
* Opening input signal: Potentiometer signal, 500Ω ~ 5KΩ.
3. Output signal
* Valve position feedback output signal: 4 ~ 20mA (DC, isolation), the output with a load capacity of less than 450Ω.
* Switch control signal: relay output. Contact capacity: 5A, 250V (AC).
4. Control Accuracy
* Sensitivity: 0.2% ~ 3.0%.
5. Instructions
* Function Select: Press the "function" key does not let go, 2 seconds from the current function into the next function, loop direction: Automatic (function indicator light) - "Manual (function indicator goes out) -" parameter setting 1 (functional indicator quickly flashes) - "parameter is set to 2 (functional indicator slow flash) -" Automatic (function indicator light).
* Calibration: Setting state to open place in the non-holding down the "adjustment" button does not let go, 2 seconds later to confirm the position is fully open position, valve fully open indicator light flashes 2 seconds to show their confirmation;
* Settings: Hold down the "function" key does not let go, 2 seconds from the current function into the next feature. Repeat the above operations, until the access parameter is set to 1 (at this time function indicator flash). Through the "adjustment" button to set the sensitivity model, open to, enter break mode. These three parameters with 4-bit binary expression, "Adjust" key to reduce the value of cycle (1111 - "1110 -" 1101 - "... ... -" 0000 - "1111). And then "function" key to exit parameter a setting, the above parameters are automatically saved. Hold down the "function" key does not let go, 2 seconds from the current function into the next feature. Repeat the above operations, until the access parameter is set to 2 (this time feature indicator slowly flashing). Through the "adjustment" button to set the size of the sensitivity value. The sensitivity value by the 4-bit binary expression, "Adjust" key to reduce the value of cycle (1111 - "1110 -" 1101 - "... ... -" 0000 - "1111), which represents the parameter to set a sensitivity mode settings will be way that the value of a fixed sensitivity. And then "function" key to exit parameter 2 settings, these parameters are automatically saved. (In the sensitivity of parameter setting will be set to a self-tuning mode, the function of selection cycle does not appear to set two parameters, the sensitivity value is automatically calculated by the module on the target to be adjusted in a timely manner.)
* Work
Manual: Press and hold "function" key does not let go, 2 seconds from the current function into the next feature. Repeat the above operations, until the hand into the dynamic (function indicator goes out). Down, through the "function" key (keep pressing time should be less than 2 seconds, otherwise considered a function of choice), "adjustment" button to open the respective valve, the closed valve operation. Turn on the lights during the valve opening (that is a digital one lights) flash, to the fully open position light, turn off the lights off during the valve (that is a digital 0 lights) flash to light up the whole place off. Open valve, press the "adjustment" key or closed valve, press the "function" key (keep pressing time of less than 2 seconds) can stop valve.
Auto: Hold down the "function" key does not let go, 2 seconds from the current function into the next feature. Repeat the above operations, until the entry from the dynamic (functional indicator light), automatic control valve opening and closing, stopping, so that the valve opening in line with the regulator input.
6. Software features
* Commutation delay protection.
* Auto-Kam to.
* Auto jog range, step distance.
* Hand-tuned or self-adjustment sensitivity (dead zone).
* Open to a free set.
* Enter break mode selection (open, closed, center, stop).
7. Can be set control parameters
* Set the parameters with "function" key and "adjustment" button to complete, and the other by a functional indicator (green) and 4-digit LED (red) shows the set parameters.
In parameter setting process, the "function" key is used to select and save the parameter settings, "adjustment" key is used to adjust parameter values, see the instructions above to select and set up in terms of functionality.
In parameter setting process, the indicator LED1 display settings parameter bit 0 (BIT0), lit a lamp on behalf of the bit to eliminate on behalf of the bit is 0; indicator LED2 display settings parameters of the first one (BIT1 ), lit a lamp on behalf of the bit to eliminate on behalf of the bit is 0; indicator LED3 display settings parameter No. 2 (BIT2), lit a lamp on behalf of the bit to eliminate on behalf of the bit is 0; indicator LED4 display settings the first three parameters (BIT3), lit a lamp on behalf of the bit to eliminate on behalf of the bit is 0.
* Doing parameter setting 1 (functional light flash), by LED4 (BIT3) instructions sensitivity mode (BIT3 to 0: hand-tune the sensitivity setting value of the size of the two states established; BIT3 to 1: Self-adjusting); by LED3 (BIT2) instructions to open to the (BIT2 0: Positive; BIT2 1: reverse), by LED2, LED1 (BIT1BIT0) instructions to break mode (BIT1 BIT0 of 00: stop valve; BIT1 BIT0 of 01: set in; BIT1 BIT0 10: off valve; BIT1 BIT0 11: open valve).
* 2 pm on setting up state (functional indicator slow flash), by LED4 ~ LED1 (BIT4 ~ BIT0) direct numerical size of the sensitivity (BIT3BIT2BIT1BIT0 for 0001: Sensitivity of 0.2%; BIT3BIT2BIT1BIT0 for 0010: Sensitivity of 0.4%; BIT3BIT2BIT1BIT0 for 0011 : sensitivity of 0.6%; ... ...; BIT3BIT2BIT1BIT0 for 1111: Sensitivity to 3.0%).
* For example, during parameter setting 1 (functional light flash), if LED4 lights turned off and LED3, LED2, LED1 lit, then the parameter a with 4-bit binary value expressed in 0111. It LED4 lights turned off (BIT3 = 0) indicated that the size of the sensitivity parameter is set to 2 in the parameter values set, it LED3 lit (BIT2 = 1), said Inversion of Control (4mA full-20mA full-off), it LED2, LED1 lit (BIT1 BIT0 = 11), said input disconnected, it will run to the valve fully open. 2:00 on setting up state (functional indicator slow flash), if LED4 lit and LED3, LED2, LED1 lights turned off, then the parameters of 2 with 4-bit binary value expressed in 1000, it said the value of the size of the sensitivity set to 1.6% .
8. Interface RS232 RS485
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