Series:	VARIOFACE, UMK
Part Status:	Active
Lead Free Status / RoHS Status:	--
Style:	--
Moisture Sensitivity Level (MSL):	--
Number of Channels:	16
Connector Type:	Screw Terminal Blocks, Flat Ribbon Cable with Connector
Mounting Type:	DIN Rail

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I/O Relay Module Racks

I/O Relay Module Racks are one of the most versatile and popular components used in industrial automation control systems. With their ability to both input and output information, they are a highly sought after who can provide reliable, cost-effective signaling solutions for a variety of general purpose, specialty and harsh environment applications.

Application Field

The application field of I/O Relay Module Racks are wide and varied. In industrial automation, they are most commonly used as a signaling solution for PLC controllers, DCS systems, and motion controllers. The most popular I/O Relay Module Rack configurations offer a combination of input, output, and auxiliary output choose from either relay based or contactless circuits depending on the type of output signaling desired. Besides the industrial field, I/O Relay Module Racks can also utilize in other environments such as remote monitoring and control systems, agricultural automation and robotics, motor control and HVAC, and even home automation.

Working Principle

I/O Relay Module Racks operates by transferring electrical signals between in and out ports to turn digital (on/off) devices on and off. It consist of two main components, relays and contacts. Relays are like small switches enclosed in a hermetically sealed metal box. The contacts, have metal surfaces that bridge gaps between free and fixed tips when a current is applied to the relay. When an electrical current is sent to the coil from a circuit, it causes the insulated contacts to close, creating an electrical circuit. In response to a signal from a PLC or DCS, the I/O Relay Module Rack sends the signal to the contact, closing the circuit and activating the digital device. When the current supply stops, the contact opens again, breaking the circuit and shutting off the device.

How to Choose I/O Relay Module Rack

Choosing the right I/O Relay Module Rack for your application starts with understanding the design needs of the system, including voltage requirements, relay type (contacts or relays) and input/output signals available. When choosing a module, look for features such as:

• Electrical rating: the current and voltage required by the module.
• Operating temperature: how much temperature range the module can tolerate.
• Type of input/output required (contactless or relays): contactless relays are much faster and more reliable.
• Drop-in or Plug-and-play: this feature makes setup much faster and easier.
• Compatibility: is the module compatible with your controller, PLC or HMI?
• Number of I/O slots: how many I/O signals the module can handle.
• Isolation: if using a multiple module system, look for a design that isolates one module from the rest.
• Control System Software: is the system software user friendly and intuitive?

By understanding your design requirements and knowing the features available, you can easily make the right choice of I/O Relay Module Rack for your application.

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