SSR-JK Series
Voltage Power Regulator

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Introduction

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SSR-JK Series Single Phase Solid State Phase-Shift Trigger Module is a device designed to regulate the load voltage through random solid state relays, and it has built-in synchronous transformer, synchronous phase detection circuit, phase shift circuit (phase control circuit) and trigger circuit. The SSR-JK series does not have a power output circuit itself, so it needs a random fire solid state relay (which will be switched as soon as there is a control signal). Through generating a wide pulse phase shifting signal (synchronized with the power grid voltage, and has the frequency twice of the power grid frequency), SSR-JK Series can adjust the conduction angle of the random fire solid state relay from 180° to 0° for linear regulation of load voltage. According to the mounting method, the SSR-JK Series can be divided into SSR-JKZK series (PCB mount) and SSR-JKWK series (Panel mount). SSR-JK Series has two control modes, automatic control (E type: CON 0-5V; F type: CON 0-10V; G type: CON 4-20mA; H type: CON 1-5V) and manual control (adjustment of potentiometer).

How to order

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SSR-JK (Single Phase Phase-shift Module, For Solid State Relay)
  - [Option] {ZK (PCB mount); WK (Panel mount)}
  - [Control Signal] {E (0~5VDC); F (0~10VDC); G (4~20mA); H (1~5VDC)}

Parameters

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SSR-JK Series

Control Signal:  E: CON 0~5V; F: CON 0~10V; G: CON 4~20mA; H: CON 1~5V
*(E, F, H types can be controlled by the manual control circuit, G type cannot be adjusted with the potentiometer)
Power Source:  Internal synchronous transformer can provide working power and synchronous voltage (18VAC) for SSR-JKWK/SSR-JKZK without additional circuit or external power
Load Voltage:  Single phase, 220VAC
Load Current:  Refer to the rated current of the selected solid state relay
Dimensions & Mounting: PCB mount (SSR-JKZK series), 40mm*28mm*13mm; Panel mount (SSR-JKWK series), 56mm*56mm*16mm

Features

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● Modularization with high pressure resistant, safer and more reliable
● Miniaturization with convenience for installation, wiring and etc.
● Linear phase-shift control circuit with good stability and high precision
● Integrates the synchronous transformer, the phase detection circuit, the phase-shift trigger circuit and the thyristor output circuit.
● No external 18VAC power supply required
● LED status indicator

Dimensions and Circuit Wiring Diagram

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SSR-JKZK Series, PCB mount, Dimensions

SSR-JKWK Series, PCB mount, Dimensions

SSR-JK Series, Circuit Wiring Diagram

I/O waveform

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The relationship and waveform of the control voltage UCON and the conduction angle α of the thyristor (when resistive load) shows below:

SSR-JK Series, I/O waveform

Application

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● Applications that need single phase voltage adjustment.
● For random fire solid state relay.

Precautions and FAQs

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● CON must be positive relative to COM, and if the polarity is opposite, the output terminal will be out of control (fully open or fully closed). When the control terminal CON changes from 0V to 5V, the voltage on the AC load can be adjusted from 0V to the maximum value (for resistive loads). When the control voltage on CON is around 0V~0.8V (Fully-closed Region), the control signal can reliably shut down the output of the module. When the control voltage on CON is around 0.8V~4.6V (Adjustable Region), the conduction angle α decreases linearly from 180° to 0° as the control voltage increases, and the voltage on the AC load increases from 0V to the maximum value. When the control voltage on CON is around 4.6V~5V (Full-open Region), the voltage on the AC load is the maximum value (close to the power grid voltage).
● The input impedance between CON and COM is divided into E, F and H type (the impedance of these three types are greater than or equal to 30KΩ), and G type (the impedance is 250Ω).
● ① and ② ports are connected to the secondary winding of the synchronous transformer, which allows a voltage of 18VAC ± 5VAC and a power of 2W.
● The +5V voltage signal on ⑦ port is only provided for the manual potentiometer (the selected resistance is between 2~10KΩ), not for other uses. Note: The G type (4~20mA as control signal) cannot be manually adjusted by the potentiometer, so the +5V port is useless for the G type.
● The pulse level of the ④ port is around 10V, and the maximum output current is 12mA. The phase-shift trigger module can directly match the random conduction type solid state relay produced by our company.
● The AC power grid frequency of the phase-shift trigger module must be 50 Hz.
● The phase-shift trigger itself generates very little heat and does not require additional heat dissipation.
● What is the Phase Shift Control?
Phase shift control (also known as phase control, phase angle control, or conduction angle control) ，which controls the output voltage by controlling the phase of the trigger circuit. For an output circuit consisting of two anti-parallel (back-to-back) SCRs (each SCR is responsible for a half cycle of power output, and its phase angle can be controlled by the control signal), by changing the phase angle, the SCR will run ahead or delay during its duty cycle. If changing the phase angle of SCRs from 180° to 0°, the AC output voltage (effective value, or rms value) can be smoothly adjusted from zero to maximum.

All Regular Models We Offer

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● SSR-JKZK Series (Single Phase, PCB mounting)

• SSR-JKZKE
• SSR-JKZKF
• SSR-JKZKG
• SSR-JKZKH

● SSR-JKWK Series (Single Phase, Panel mounting)

• SSR-JKWKE
• SSR-JKWKF
• SSR-JKWKG
• SSR-JKWKH

(E type: CON 0-5V; F type: CON 0-10V; G type: CON 4-20mA; H type: CON 1-5V)

*Customized models are available, be free to contact us.

Tips

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