8 relay module / bidirectional optocoupler / high / low trigger / double PCB, two-terminal / 5V / 12V / 24V

RM8HLE bidirectional isolation relay control module description

Isolated Bidirectional 8 relay control module, According to user needs,ChooseHighOrLOWTo control the relay. Genuine high-power relay module, the industry\'s top ultra-small package optocouplers, power high-voltage transistors, red, blue signal lights, military-grade double-sided PCB board, cloth board consider a comprehensive, stable performance, it can be widely used in various power control types of occasions

A module description

1, the module uses genuine quality relay, normally open interfaces Maximum load: AC 250V / 10A, DC 30V / 10A;

2, usingThe industry\'s top-quality ultra-compact two-way isolation optocouplerAnti-interference ability, stable performance; the trigger current is only 3mA;

3, the module operating voltage 5V, 12V, 24V to choose from; another one-way, 2-way, 4-way, 8-way modules to choose from;

4,User selectableRelaysThe control level may be high pull, pull may be low;Module containing current limiting resistor,You can directly use the power of positive and negative controlTo beUseSCMOfI / O portsControl??

5, fault-tolerant design, even if the control line is broken, the relay will not operate;

6, power indicator (red), 8 relay status LED (blue)

7, interface design user-friendly, all interfaces can connect directly via wired terminal leads, very convenient

8, module size: 7.9cm * 9.0m * 1.8cm (L * W * H)

9 with 4 fixing bolt holes for easy installation

Two module interface

Module control terminal:11-line interface, all interfaces can connect directly leads, user-friendly

1, DC +: External DC power supply positive (with 5V, 12V and 24V modules to choose from)

2, DC-: external DC power supply negative

3, VREF: optically isolated control terminal reference ground,

If a high-level control: This signal should be connected to the negative power of the user control panel

If a low-level control: This signal should be connected to the positive supply user control panel

4,CH1-CH8: relay control interface,

If VREF negative one: This port level (as opposed to VREF) when the corresponding relay

If VREF positive power supply: When this port low (as opposed to VREF) corresponding relay

Note: Isolated relay module is designed to adapt to the environment is bad or electromagnetic signals require more high occasion, if you want to achieve complete isolation, the user control panel power (that is, connection VERF reference power supply) power supply and relay modules (DC + / DC-) should be distinguished, if the two power supply of land, it is not completely isolated effect, then the user can choose to use our more economical standard relay module.

Relay outputs:24-line interface, all interfaces can connect directly leads, user-friendly

1, NO1 - NO8: normally open relay interfaces, relay before the vacant post is absorbed and COM short-circuited

2, COM1 - COM8: Relay Common Interface

3, NC1 - NC8: normally closed relay interfaces, relay and COM short-circuited before, after the pull-vacant