Omron E5CC-RX3DSM-003 E5CC Series Temperature Controller

Description

Process loops requiring strict thermal boundaries depend on the Omron E5CC-RX3DSM-003 temperature controller to manage critical heat profiles with minimal tracking error. This 48 x 48 mm compact digital controller features a high-contrast white LCD display that maximizes visibility from wider viewing angles and in low-light environments. Equipped with 2-PID control algorithm technology, the unit actively suppresses overshoot while maintaining ultra-fast response times to system disturbances. It supports universal sensor inputs, integrated RS-485 serial communications, and advanced diagnostics for three-phase heating systems, rendering it a solid, low-maintenance component for high-reliability control panels.

Key Features

• Universal Input: Accepts thermocouples (K, J, T, E, L, U, N, R, S, B, W, or PL II), platinum resistance thermometers (Pt100 or JPt100), and analog current/voltage inputs.
• Relay Control Output: Features an SPST-NO main control relay rated at 250 VAC, 3 A for direct control of contactors or resistive elements.
• Triple Auxiliary Outputs: Includes three auxiliary relay outputs sharing a single common terminal for versatile alarm and event mapping.
• Dual CT Input Options: Equipped with dual current transformer inputs designed to detect heater burnout (HB) and heater short (HS) conditions in 3-phase systems.
• Embedded Communication: Includes built-in RS-485 serial communication using Modbus RTU or CompoWay/F protocols for centralized SCADA or PLC integration.

Industrial Applications

• Packaging Machinery: Precise sealing bar temperature control to prevent film deformation and guarantee hermetic seals.
• Plastic Extrusion: Barrel and die zone thermal regulation to ensure correct melt viscosity and consistent extrusion profiles.
• Industrial Ovens & Furnaces: Precise ramp and soak thermal control for industrial heat-treating and curing operations.
• Food & Beverage Processing: Temperature stabilization in pasteurization chambers, sanitizing equipment, and environmental ovens.

Technical Specifications

Alternative Models & Compatibility

Note that the E5CC-RX3DSM-003 operates strictly on 24 VAC/DC low voltage power supplies. Standardizing panels on this model prevents accidental high-voltage line exposure on diagnostic circuits. It cannot be directly swapped with the 100-240 VAC model (E5CC-RX3ASM-003) without routing dedicated 24V bus power to the unit. Check the control schematic to confirm local supply ratings prior to replacement.

Application Pitfalls & Engineering Notes

For 3-phase heater burnout diagnostics, the current transformers (typically Omron E54-CT1 or E54-CT3) must be terminated correctly to terminals 25/26 and 27/28. High electrical noise from nearby variable frequency drives or solid-state relays (SSRs) can inject interference into the sensor lines. It is highly recommended to program the internal digital filter (parameter INF) to mitigate signal jitter in electrically noisy panels.

Commissioning & Wiring Tips

When configuring RS-485 serial communication, verify that the controller's baud rate, data length, stop bits, and parity match the upstream PLC or gateway parameters. If the controller is located at the physical end of the daisy-chain network, a 120-ohm termination resistor must be installed across terminals 29 and 30 to stabilize data transmission and suppress signal reflections.

Installation Guidelines