This product is a multi-functional power module, which integrates thyristor power circuit, SCM-control phase-shift trigger circuit, signals detects and transfer circuit, voltage modulation circuit. It can realize the precise control of the voltage of the load. With built-in linear control circuit, it is highly precise and stabilized. Rated current: 50-500A, rated voltage: 220V, 380V, 440V, 50Hz or 60Hz. It is widely used in all kinds of induction and impedance loads, for instance: AC motor, transformer, temperature control, light change, AC voltage modulation.
Internal connection, classification and name
Main technical standards(GVDA-50;70;120;200;250;350;500)
Function
Thyristor AC single-phase voltage modulation
Input voltage
220V+20% 380V+20% 440V+20%
Asymmetry degree of output positive and negative waves
≤2%
Controlling voltage
0-10VDC (input resistance 10KΩ)
Controlling current
4-20mA (input resistance 330Ω)
Hand-control potentiometer resistance
10KΩ
Colling method
Wind-colling radiator
Ambient temperature
-30oC~ +40oC
Storage temperature
-25oC~ +55oC
Main circuit parameter
Parameter
Unit
Value
Load current
Arms
50
70
120
200
250
350
500
TRIAC over voltage
Vpk
800-1200
Frequency
Hz
50-60
Off state voltage rising rate
V/sec
500
On state voltage rising rate
A/sec
100
Off state leakape current
mArms
≤8
≤10
≤10
≤10
≤15
≤20
≤20
On state leakape current
Vrms
1.6
1.6
1.6
1.8
1.8
1.8
1.8
Voltage drop insulating voltage
Vrms
≥2500
Weight
Kg
0.425
2.2
Exterior and installation dimensions
Connections of control lines(50-120A module) ■ 10V voltage control ■ 10K potentiometer control ■ 4-20mA control
Remarks:the interfaces of 200A—500A modules:VCC(red)、CON1(blue)、Econ(orange)、CON(yellow)、4-20mA(green)GND(black)others are blank See the right map connections is the same as above.
