Description
Core Product Summary (Brand / Model / Key Attributes)
The Omron E5CD-RX2ADM-802 is a 48 × 48 mm (1/16 DIN) digital temperature controller from the E5CD series. It provides single-loop temperature control with a relay control output, two independent auxiliary relay outputs, universal sensor input, and RS-485 communications.
It accepts thermocouple, platinum RTD, infrared thermosensor, and analog current/voltage inputs. The unit operates from 100–240 VAC, features a screw-terminal draw-out design, 50 ms sampling, 2-PID or ON/OFF control with auto-tuning, and includes a CT input for heater-burnout and SSR-failure detection. Front-panel protection is IP66.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Size | 48 × 48 mm (1/16 DIN) |
| Control output 1 | Relay (SPST-NO, 250 VAC 3 A resistive load) |
| Auxiliary outputs | 2 independent relay outputs |
| Power supply | 100–240 VAC, 50/60 Hz |
| Power consumption | 6.5 VA max. |
| Sensor input | Universal: thermocouple (K, J, T, E, L, U, N, R, S, B, C/W, PLII), Pt100/JPt100, infrared (ES1B ranges), 4–20 mA / 0–20 mA, 1–5 V / 0–5 V / 0–10 V |
| Control method | ON/OFF or 2-PID with auto-tuning; heat/cool capable |
| Sampling period | 50 ms |
| Indication accuracy | Thermocouple: ±0.3 % of PV or ±1 °C (whichever larger) ±1 digit; RTD: ±0.2 % of PV or ±0.8 °C ±1 digit; Analog: ±0.2 % FS ±1 digit |
| Communications | RS-485 |
| CT input | 1 channel (heater burnout / SSR failure detection) |
| Display | Dual 4-digit LCD (PV character height 14.9 mm) |
| Terminal type | Screw terminal block, draw-out structure |
| Front protection | IP66 |
Detailed Product Overview
The Omron E5CD-RX2ADM-802 belongs to the E5CD digital temperature controller family and is intended for precise single-loop temperature regulation in industrial processes. Its 48 × 48 mm panel-mount format and screw-terminal draw-out construction allow straightforward installation and replacement without disturbing field wiring.
Universal input capability covers the most common temperature sensors and linear process signals, eliminating the need for input-type selection at the ordering stage. Control can be configured as simple ON/OFF or as 2-PID with automatic tuning. One of the two auxiliary relay outputs can be reassigned for cooling, enabling heat/cool control with independent PID parameters for each direction.
The 802 option adds RS-485 serial communications (CompoWay/F or Modbus) and a single CT input. The CT channel supports heater-burnout detection and SSR-failure detection, providing early warning of heating-element or solid-state-relay problems. Adaptive control automatically adjusts PID parameters when process conditions change, while automatic filter adjustment reduces noise on surface-temperature measurements typical of sealing applications. A water-cooling output adjustment function is also available for extrusion or similar processes that use water cooling.
The dual-line display shows process value and setpoint simultaneously with high visibility. Front-panel sealing meets IP66, suitable for wash-down or dusty environments when the optional waterproof cover is fitted. Power is supplied directly from 100–240 VAC, simplifying panel design in regions with varying mains voltages.
E5CD-RX2ADM-802
E5CD-RX2ADM-802
Engineering Selection Highlights
- Exact 48 × 48 mm panel cut-out and draw-out screw-terminal block match existing E5CD/E5CC installations and allow module replacement without rewiring.
- Relay control output (250 VAC 3 A) is suitable for direct contactor or small heater loads; for higher currents an external SSR driven by a QX-type variant would be required.
- Universal input accepts thermocouples, Pt100/JPt100, infrared sensors and 0–10 V / 4–20 mA signals, removing the need to stock multiple input-type controllers.
- RS-485 plus CT input (option 802) enables network monitoring and continuous heater-health supervision—critical for processes where heater failure causes scrap or downtime.
- Heat/cool capability uses one auxiliary output as the cooling channel, allowing a single controller to manage both heating and cooling actuators.
- 50 ms sampling and adaptive control improve response to rapid process changes compared with slower legacy controllers.
- 100–240 VAC supply covers worldwide mains voltages without additional transformers.
Dimensions, Mounting & Connection Notes
- Front dimensions: 48 × 48 mm
- Panel cut-out: 45 × 45 mm
- Depth behind panel: approximately 64 mm (excluding wiring)
- Mounting: flush panel mount with supplied adapter; draw-out terminal block for service
- Terminals: screw type, removable
- Front protection: IP66 (with optional waterproof cover Y92A-48N)
- Ambient operating temperature: –10 to 55 °C (no freezing or condensation)
- Storage temperature: –25 to 65 °C
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
|---|---|---|
| Panel cut-out | 45 × 45 mm (standard 1/16 DIN) | Use supplied mounting adapter |
| Power supply | 100–240 VAC, 50/60 Hz | Operating range 85–110 % of nominal |
| Sensor connection | Universal input terminals | Configure input type in initial setting menu |
| Control load | Relay contact 250 VAC 3 A resistive | Derate for inductive loads; external contactor recommended for larger heaters |
| Communications | RS-485 (2-wire) | CompoWay/F or Modbus protocol selectable |
| CT input | Single-phase CT (E54-CT series recommended) | Required for heater-burnout / SSR-failure alarms |
| Auxiliary outputs | 2 × SPST-NO relay | One may be assigned as cooling output |
| Software | CX-Thermo (optional) | Parameter setting and monitoring via USB or RS-485 |
FAQ
What is the Omron E5CD-RX2ADM-802?
It is a 48 × 48 mm digital temperature controller with relay control output, two auxiliary relays, universal sensor input, RS-485 communications and a CT input for heater-burnout detection.
Which power supply does it require?
100–240 VAC, 50/60 Hz. Power consumption is 6.5 VA maximum.
What sensor types can be connected?
Thermocouples (K, J, T, E, L, U, N, R, S, B, C/W, PLII), Pt100, JPt100, Omron ES1B infrared sensors, and analog signals 4–20 mA, 0–20 mA, 1–5 V, 0–5 V or 0–10 V.
Does it support communications?
Yes. The 802 option provides RS-485 supporting CompoWay/F and Modbus protocols.
Can it perform heat-and-cool control?
Yes. One auxiliary output can be assigned as the cooling control output, allowing independent PID settings for heating and cooling.
What is the CT input used for?
It monitors heater current for burnout detection and SSR failure detection.
What is the sampling period?
50 ms.
What front-panel protection rating is provided?
IP66 when the optional waterproof cover is fitted.
Start Chat
