SMT-ED-R20-V3 IMO iSmart Intelligent Relay – V3 24VDC, HMI, 12 DI, 4AI

Why Choose the IMO SMT-ED-R20-V3 iSmart Intelligent Relay?

The IMO SMT-ED-R20-V3 is a compact 24 V DC iSmart V3 intelligent relay with integrated HMI, designed for industrial automation, machinery and control panel applications. It combines programmable logic, local operator interaction and flexible I/O within a single controller, providing 12 DC input points and 8 relay outputs.

As part of the IMO iSmart V3 programmable relay series, the SMT-ED-R20-V3 incorporates 4 configurable 0–10 V analogue inputs within its DC input configuration. These analogue-capable channels allow compatible sensors and transmitters to be monitored directly by the controller, while the remaining digital inputs accommodate switches, proximity sensors and other discrete control signals.

Operating from a 24 V DC supply, the SMT-ED-R20-V3 provides 8 relay outputs rated at up to 8 A resistive and includes 2 high-speed inputs operating at up to 1 kHz. Its integrated text HMI and programmable function keys provide convenient local control, while Ladder Logic, Function Block Diagram, PID and maths functionality support sophisticated automation applications.

Key Advantages

• Combines programmable control, analogue monitoring and an integrated HMI in one compact device.
• 12 DC input points provide substantial onboard input capacity.
• Includes 4 configurable 0–10 V analogue inputs for compatible variable-output sensors.
• 8 relay outputs rated up to 8 A resistive for versatile switching applications.
• 2 high-speed inputs operating at up to 1 kHz support pulse and counting applications.
• Supports both Ladder Logic and Function Block Diagram (FBD) programming.
• PID control, maths functions, timers, counters and retentive data registers provide flexible control functionality.
• Expandable with compatible IMO iSmart modules when additional I/O or specialist functions are required.

Key Features

• IMO iSmart V3 intelligent relay.
• 24 V DC nominal operating supply.
• 12 DC input points.
• 4 configurable 0–10 V analogue inputs.
• 12-bit nominal analogue input resolution.
• 8 relay outputs.
• 8 A resistive relay output rating.
• 2 high-speed inputs up to 1 kHz.
• Integrated text HMI.
• 8 programmable function keys.
• Ladder Logic programming.
• Function Block Diagram (FBD) programming.
• PID control capability of up to 30 loops.
• Maths functions and retentive data registers.
• Multi-language functionality within the iSmart V3 platform.
• Expandable with compatible IMO iSmart expansion modules.

Integrated HMI and Analogue Monitoring for Machine Automation

The IMO SMT-ED-R20-V3 combines programmable logic, analogue monitoring and local operator interaction within a single compact controller. Its digital inputs can accommodate conventional switches and sensors, while four channels support 0–10 V analogue measurement. This enables compatible pressure, level, position and other analogue transmitters to be incorporated directly into machine control logic.

The integrated HMI provides local status information and programmable operator controls without requiring a separate display in suitable applications. Combined with eight relay outputs, high-speed inputs, PID control, timers, counters and expandable I/O, the SMT-ED-R20-V3 provides a flexible alternative to conventional hard-wired control systems for compact and medium-complexity automation tasks.

Typical Applications

• Industrial machine automation.
• Pump, fan and motor control systems.
• 0–10 V sensor monitoring and control.
• Conveyor and material handling equipment.
• HVAC and building automation systems.
• Packaging and production machinery.
• High-speed pulse and counting applications.
• OEM machinery and electrical control panels.