Description

HIMA F3422

Function of relay module:

The main function of a relay is to control a large current through a small current. For example, through relays, we can control 12V motors and even higher voltage devices through some single chip computers. Because some devices with relatively large voltage and current use triode to switch will produce relatively large power consumption and high cost, so we will choose mechanical structure to control large current and large voltage.

Principle of relay module

In the structure of the relay module, we also explain the composition of the relay module and the corresponding design structure. Perhaps you should know the general principle of the relay module, here we specifically analyze its principle, the composition of the relay module we said is by the control circuit, relay and the corresponding interface.

When the IN port of our control terminal outputs a low level (and whether the relay module is triggered by a low level or a high level is determined by whether the triode taken by its module is PNP or NPN), the relay module adopted in this design uses triode PNP. Triggered by low level), the triode PNP will be switched on, When K1 relay connects VCC5 to GND, this part of the circuit will be switched on, thus energizing the magnet in the relay, switching the internal armature from the normally closed pin to the normally closed pin, and when the controlled circuit and external power supply are connected to COM and NO(normally open), then a closed circuit will be formed because the controlled circuit and the external power supply , thereby energizing the device on the controlled circuit. It's a little loopy, but you can think of the role of this part of the relay as a knife switch, when the relay is energized and drawn, the knife is put down to make the entire external circuit open. The current of this external circuit may be very large, so we can say that the small current can be controlled by the relay.

Brief introduction of working principle

When the input level is high, the transistor T1 saturation is on, the relay coil is energized, and the contact is drawn.

When the input level is low, the transistor T1 is off, the relay coil is powered off, and the contact is disconnected.

The rated operating voltage of relay is the most important technical parameter of relay. When using a relay, the working voltage of the circuit (that is, the circuit where the relay coil is located) should be considered first, and the rated working voltage of the relay should be equal to the working voltage of the circuit. Generally, the working voltage of the circuit is 0.86 of the rated working voltage of the relay. Note that the workpiece voltage of the circuit must not exceed the rated working voltage of the relay, otherwise the relay coil is easy to burn. In addition, some integrated circuits, such as the NE555 circuit can directly drive the relay to work, and some integrated circuits, such as the COMS circuit output current is small, need to add a transistor amplifier circuit to drive the relay, which should consider that the transistor output current should be greater than the rated working current of the relay.

• Manufacturer : HIMA

• Product No. : F3422

• Product type : 8 fold relay module, safety related

• Output voltage : 48 V DC

• Resistive load or inductive load up to 500 mA

• Lamp connection up to 4 W with integrated safety shutdown, with safe isolation, requirement class AK 1 ... 6

• Outputs : 500 mA, k short circuit proof

• Duration of the test signal : max. 200 µs

• Space requirement : 4 TE

• Shipping weight : 2 Kg

One year warranty, special discount after sale

The company focuses on DCS, PLC, robot, large servo four systems

The main products are all kinds of module/card, controller, touch screen, servo drive

The company's advantages: the supply of imported original products, professional production of accessories

Fast delivery time, complete supply, The seller has more than $1526000 worth of industrial control products inventory

We Can transport to the world！！！

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