介绍 summary
The MGC2000 series is a standard product control system in the series, using a single programmable controller as the core, equipped with servo motor, stepper motor or servo valve control system to achieve automatic channel control, fast response, high precision response, wide speed range and good speed performance. The regulator can regulate the function of adaptive variable parameters PID; with a frequency adjustment mode, power analog control mode, power pulse adjusting mode, the opening degree of analog control mode, and can automatically switch or manual switch according to different working conditions; to achieve the real-time correction of head start guide vane opening, no-load opening, opening limit and the cam curve function; switching between manual and automatic, the main standby regulator without disturbance; with the diagnosis, fault tolerance and fault protection function.
The hydraulic control system is equipped with a servo motor, stepper motor or servo valve actuator motor, with the original NSDEC (servo motor or stepper motor) and proportional servo valve type two from the main distribution in the complex pressure valve, can achieve the function of self restoring valve piston power failure case.
It is applicable to the single / double regulating units of a series of mixed flow, axial flow blades and tubular flow units
-
Single controller
-
Single (double) Regulation
-
Large and medium speed governor
-
The utility model has the advantages of simple structure, convenient disassembly and maintenance
-
Reliable operation and little noise
-
Motor or proportional valve control system
-
Electromechanical cabinet or electromechanical cabinet
技术参数 Technical Parameter
|
技术参数 Specifications
|
技术指标 Technical Data
|
|
Cabinet characteristics
|
|
Dimension of cabinet of electromechanical joint cabinet
|
800mm*800mm*1860mm (length * width * height) can be customized
|
|
Electromechanical cabinet, electric cabinet size
|
600mm*800mm*2260mm or 800mm*800mm*2260mm (length * width * height)
|
|
Mechanical and electrical cabinet, dimension of machine cabinet
|
800mm*800mm*1860mm (length * width * height) can be customized
|
|
Cabinet weight
|
300kg
|
|
AC voltage standard for work
|
AC220V±15%
|
|
Operating DC voltage standard
|
DC110V±10%，DC220V±15%
|
|
Load capacity
|
2200W（VA）
|
|
Withstand voltage test
|
1.5kV，1min
|
|
Protection level
|
IP65
|
|
Operating temperature range
|
-40～65℃
|
|
Insulation impedance
|
>10MΩ
|
|
leakage current
|
<1mA
|
|
Control signal output
|
|
Stepper motor
|
Stepper motor drive outlet
|
|
servo motor
|
Servo motor drive outlet
|
|
Proportional valve
|
Analog channel current 4～20mA
|
|
Input characteristic
|
|
Switch input
|
DC24V，LED indicator, fully isolated
|
|
Analog input
|
Voltage 0 ~ 10V, current 4 ~ 20mA, LED indicator light, completely isolated
|
|
output characteristic
|
|
On-off output
|
DC24V, LED indicator, full isolation
|
|
Analog output
|
Voltage 0 ~ 10V, current 4 ~ 20mA, LED indicator light, completely isolated
|
|
Frequency measurement specification
|
|
Measurement mode
|
Controller body frequency measurement
|
|
Grid frequency
|
Alternating current (30 ~ 150V), rated frequency from 90 to 110%
|
|
Unit frequency
|
Exchange (0.3 ~ 150V), 7.8 ~ 110 Hz
|
|
Frequency measurement of gear disc
|
Contactless proximity switch (DC24V power supply) 1～110 Hz
|
|
Frequency measuring resolution
|
0.001Hz
|
|
Frequency measuring channel
|
Unit residual pressure frequency, system frequency, unit gear speed measurement
|
|
|
性能参数 performance parameter
|
性能参数 Specifications
|
技术指标 Technical Data
|
|
Stability performance
|
|
Relative value of unit speed swing
|
<±0.15%
|
|
Gateopening stable fluctuation value
|
<0.1%
|
|
Maximum nonlinearity of static characteristic curve
|
<0.3%
|
|
Speed dead zone
|
<0.02%
|
|
Dynamic characteristics
|
|
Load wave crest not exceeding
|
2次
|
|
The ratio of guide vane (tE) to (tM)
|
<8
|
|
The ratio of blade closing time to tE (tM)
|
<12
|
|
Minimum relative speed of load rejection
|
>90%
|
|
(tSR) and (t0.8) ratios
|
<5
|
|
servomotor dead time
|
<0.2s
|
|
Double regulation blade accuracy
|
<0.3%
|
|
Auto Power Time
|
20～120s
|
|
调速系统参数设置
|
|
The adjustment range of the permanent slip coefficient is
|
0～10%
|
|
Slip adjustment range is
|
0～10%
|
|
Adjust the frequency range of the manual frequency on line
|
0～±1.5%
|
|
Speed adjustment range is
|
90～110%
|
|
The power adjustment range is
|
0～105%
|
|
Zero load and full load adjustment time
|
20～300s
|
|
Mode of operation, switching, relay changes
|
<0.3%
|
|
Dual power switching relay changes
|
<0.1%
|
|
Proportional gain Kp range
|
0～20
|
|
Integral gain Ki range
|
0.01～10（1/s)
|
|
Differential gain Kd range
|
0.01～10s
|
|
The speed regulation system can be utilized not less than
|
99.99%
|
|
The first trouble free interval is not less than
|
30000
|
|
|