Omron Temperature Controller — PID & Digital Controllers
An Omron Temperature Controller is an industrial control device designed to regulate process temperature using precise feedback control strategies such as PID control, ON/OFF control, and auto-tuning algorithms. Manufactured by Omron Corporation, these controllers are widely deployed in manufacturing environments where temperature stability directly impacts product quality, energy efficiency, and process safety.
In industrial automation across India—especially in plastics, food processing, pharmaceuticals, packaging, and furnace systems—maintaining a stable process variable (PV) at a defined setpoint is critical. Fluctuations can lead to dimensional defects, inconsistent curing, overheating, or material degradation.
Omron controllers support thermocouple (J, K, T type), RTD, and PT100 inputs, while delivering accurate control output (MV) through relay, SSR output, or 4–20mA current output. With adaptive PID algorithms, short sampling time, and high display resolution, they ensure stable thermal response even under Indian ambient temperature conditions and electrical noise environments.
Omron E5DC Temperature Controller
The Omron E5DC Temperature Controller is part of the broader Omron Temperature Controllers range, engineered for precise and stable industrial temperature regulation across manufacturing environments.
Key Specifications
- Power Supply Voltage: 100–240 VAC or 24 VAC/VDC
- Control Method: ON/OFF or 2-PID control with auto-tuning
- Control Output: Relay, voltage output for SSR, or linear current
- Auxiliary Output: Up to 2 outputs (model-dependent)
- Display: 11-segment display (PV: 8.5 mm, SV: 8.0 mm)
- Mounting: DIN-rail mounting design
Omron E5CC Temperature Controller
- Size: 1/4 DIN (96×96 mm) and 1/16 DIN (48×48 mm).
- Power Supply Voltage: 100–240 VAC or 24 VAC/VDC.
- Control Method: ON/OFF or 2-PID with auto-tuning.
- Control Output: Relay, voltage for SSR, or linear current.
- Analog Input Types: 0–10 V, 0–20 mA, 0–5 V, 1–5 V, 4–20 mA.
- Event Inputs: Up to 4 (model-dependent).
- Alarm Outputs: Up to 4 outputs.
- Terminal Type: Screw or push-in terminals.
- Mounting Style: Panel-mounted temperature controller.
Omron E5CD Temperature Controller
- Power Supply Voltage: 100–240 VAC or 24 VAC/VDC.
- Control Method: ON/OFF or 2-PID with auto-tuning.
- Control Output: Relay, voltage for SSR, or linear current.
- Auxiliary Output: Up to 2 (model-dependent).
- Event Inputs: Up to 2 inputs.
- Setting Method: Digital setting via front panel keys.
- Display: 11-segment display, PV: 14.9 mm, SV: 7.1 mm.
- Mounting: DIN-rail or panel mounting.
Omron E5ED Temperature Controller
- Power Supply Voltage: 100–240 VAC or 24 VAC/VDC.
- Control Method: ON/OFF or 2-PID with auto-tuning.
- Control Output: Relay, voltage (SSR), or linear current.
- Auxiliary Outputs: Up to 4 outputs.
- Event Inputs: 2 or 4 inputs (model-dependent).
- Setting Method: Digital setting via front panel keys.
- Display Type: 11-segment digital display.
- Character Height: PV: 18.0 mm, SV: 11.0 mm, MV: 7.8 mm.
- Mounting Style: DIN panel mount.
Omron E5GC Temperature Controller
- Power Supply Voltage: 100–240 VAC (50/60 Hz) or 24 VAC/VDC.
- Control Method: ON/OFF or 2-PID with auto-tuning.
- Control Output: Relay, voltage (SSR), or linear current.
- Auxiliary Outputs: 1 or 2 (model-dependent).
- Event Inputs: 1 or 2 inputs (model-dependent).
- Setting Method: Digital setting via front panel keys.
- Display Type: 11-segment digital display.
- Character Height: PV: 10.5 mm, SV: 5.0 mm.
- Design: Compact controller ideal for limited panel space.
Omron E5EC Temperature Controller
- Power Supply Voltage: 100–240 VAC, 24 VAC, or 24 VDC.
- Control Method: ON/OFF or 2-PID with auto-tuning.
- Control Output: Relay, voltage (SSR), or linear current.
- Auxiliary Outputs: Up to 4 (E5EC); 2 or 4 (E5EC-B).
- Event Inputs: 2, 4, or 6 inputs (model-dependent).
- Setting Method: Digital setting via front panel keys.
- Display Type: 11-segment digital display.
- Character Height: PV: 18.0 mm, SV: 11.0 mm, MV: 7.8 mm.
- Mounting Style: DIN panel mounting.
Omron E5AC Temperature Controller
- Power Supply Voltage: 100–240 VAC or 24 VAC/VDC.
- Control Method: ON/OFF or 2-PID with auto-tuning.
- Control Output: Relay, voltage (SSR), or linear current.
- Auxiliary Outputs: Up to 4 outputs.
- Event Inputs: 2, 4, or 6 inputs (model-dependent).
- Setting Method: Digital setting via front panel keys.
- Display Type: 11-segment digital display.
- Character Height: PV: 25.0 mm, SV: 15.0 mm, MV: 9.5 mm.
- Mounting Style: DIN panel mounting.
Omron PID Temperature Controller E5CC-T
- Power Supply Voltage: 100–240 VAC, 24 VAC/VDC.
- Control Method: 2-PID with auto-tuning or ON/OFF.
- Control Output: Relay, voltage (SSR), linear current.
- Auxiliary Outputs: Up to 3 outputs.
- Event Inputs: 2 or 4 inputs (model-dependent).
- Setting Method: Digital setting via front panel keys.
- Display Type: 11-segment digital display.
- Character Height: PV: 15.2 mm, SV: 7.1 mm.
- Mounting Style: DIN panel mount.
Omron E5CN Temperature Controller
- Power Supply Voltage: 100–240 VAC or 24 VAC/VDC.
- Control Method: ON/OFF or 2-PID with auto-tuning.
- Control Output: Relay, voltage (SSR), or linear current.
- Auxiliary Outputs: Up to 2 outputs.
- Event Inputs: Up to 2 inputs.
- Display Type: 11-segment digital display.
- Character Height: PV: 11 mm, SV: 6.5 mm.
- Sampling Speed: 60 ms high-speed sampling.
- Accuracy: ±0.1% for thermocouple/Pt inputs, ±0.1% FS for analog inputs.
Omron E5EN Temperature Controller
- Power Supply Voltage: 100–240 VAC or 24 VAC/VDC.
- Control Method: ON/OFF or 2-PID with auto-tuning.
- Control Output: Relay, voltage (SSR), linear voltage, or current.
- Auxiliary Outputs: Up to 3 outputs.
- Event Inputs: 2 or 4 inputs.
- Logic Operations: Supports up to 8 logic operations.
- Display Type: 11-segment digital display.
- Character Height: E5AN-H: PV: 15.8 mm, SV: 9.5 mm, MV: 6.8 mm; E5EN-H: PV: 11.8 mm, SV: 8.1 mm, MV: 5.8 mm.
Omron E5CS Temperature Controller
- Power Supply Voltage: 100–240 VAC, 24 VAC/VDC.
- Control Method: ON/OFF or 2-PID with auto-tuning.
- Control Output: Relay (SPDT, 250 VAC, 3 A), voltage for SSR (12 VDC, 21 mA).
- Alarm Output: SPST-NO, 250 VAC, 1 A.
- Setting Method: Digital setting via front panel keys.
- Display Type: 7-segment digital display.
- Character Height: 13.5 mm.
- Indicators: Deviation indicators for status display.
- Mounting Style: Panel-mounted controller.
Omron Programmable Temperature Controller E5CN-HT
- Power Supply Voltage: 100–240 VAC, 24 VAC/VDC.
- Control Method: ON/OFF or 2-PID with auto-tuning.
- Control Output: Relay, current, and linear voltage output.
- Auxiliary Outputs: Up to 2 outputs.
- Event Inputs: Up to 2 inputs.
- Logic Operations: Supports up to 8 logic operations.
- Display Type: 11-segment digital display.
- Character Height: PV: 11 mm, SV: 6.5 mm.
- Mounting Style: DIN panel mounting.
Omron E5CSV Temperature Controller
- Power Supply Voltage: 100–240 VAC, 24 VAC/VDC.
- Sensor Input: Thermocouples (K, J, L) and Pt100 / JPt100 RTDs.
- Control Output: Relay (SPST-NO, 250 VAC, 3 A), voltage for SSR (12 VDC, 21 mA).
- Control Method: ON/OFF or 2-PID with auto-tuning.
- Alarm Output: SPST-NO, 250 VAC, 1 A.
- Setting Method: Digital setting via front panel keys.
- Display Type: 7-segment digital display.
- Character Height: 13.5 mm.
- Indicators: Deviation indicators included.
Omron E5C2 Temperature Controller
- Power Supply Voltage: 100–240 VAC, 50/60 Hz.
- Operating Voltage Range: 90% to 110% of rated voltage.
- Power Consumption: Approx. 3.6 VA.
- Input Type: Thermocouple, RTD, or thermistor (replaceable element).
- Control Mode: ON/OFF or proportional control.
- Setting Method: Analog setting.
- Control Output: Relay SPDT, 3 A at 250 VAC (resistive).
- Setting Accuracy: ±2% FS max.
- Mounting Style: Panel mounting.
Omron E5L Electronic Thermostat
- Power Supply Voltage: 100–240 VAC, 50/60 Hz.
- Operating Voltage Range: 85% to 110% of rated voltage.
- Power Consumption: Approx. 3 VA.
- Inputs: Element-interchangeable thermistor.
- Control Method: ON/OFF control.
- Control Output: SPDT or SPST-NO, 250 VAC, 10 A (resistive load).
- Setting Method: Analog or digital front panel keys.
- Indication Method: No display or LCD (12 mm character height).
- Mounting Style: Panel mounting.
Omron E5CSL Temperature Controller
- Power Supply Voltage: 100 to 240 VAC, 50/60 Hz.
- Control Method: ON/OFF or 2-PID with auto-tuning.
- Control Output: Relay or voltage output (for SSR).
- Sensor Input: Thermocouple (K, J, T, R, S) or Pt100 RTD.
- Display Type: 7-segment digital with character height: E5CSL – 21.7 mm, E5CWL – 16.2 mm, E5EWL – 20 mm.
- Alarm Output: 1 output, SPST-NO, 250 VAC, 1 A (model-dependent).
- Sampling Period: 250 ms.
- Mounting Depth: 60 mm (behind front panel).
- Setting Method: Digital keys with simplified parameter setup.
Omron E5CB Temperature Controller
- Power Supply Voltage: 100–240 VAC, 24 VAC/VDC.
- Control Method: ON/OFF or 2-PID with auto-tuning.
- Control Output: Relay or voltage output (for SSR).
- Sensor Input: Thermocouple (K, J, T, R, S) or Pt100.
- Alarm Output: 1 relay output (SPST-NO, 250 VAC, 1 A).
- Display Type: 7-segment digital dual display.
- Character Height: PV: approx. 16 mm.
- Sampling Period: 250 ms.
- Mounting Depth: Only 60 mm (compact design).
Omron E5GN Temperature Controller
- Size: 48 × 24 mm compact panel mount.
- Power Supply Voltage: 100–240 VAC or 24 VAC/VDC.
- Control Method: ON/OFF or 2-PID with auto-tuning.
- Control Output: Relay, voltage (SSR), or linear current.
- Sensor Input: Thermocouple, Pt100, or analog (voltage/current).
- Display: Dual 4-digit, 11-segment, with 3-color PV switching.
- Alarm Outputs: 0, 1, or 2 (model-dependent).
- Sampling Period: 250 ms, with improved ±0.2%–0.3% accuracy.
- Functions: Control ON/OFF counter, PV rate-of-change alarm, RS-232C/RS-485 communication support.
Omron EJ1 Modular Temperature Controller
- Control Points: Connect up to 64 units (2-point or 4-point modules).
- Power Supply: 24 VDC from End Unit.
- Control Method: ON/OFF or 2-PID with auto-tuning.
- Input Types: Thermocouple, RTD, infrared, voltage, and current.
- Control Outputs: Voltage, transistor, or current (model-dependent).
- Event Inputs: Up to 2 inputs per unit.
- Communication: RS-485 (CompoWay/F, Modbus), G3ZA/G3PW connectivity.
- Functions: Overshoot adjustment, loop burnout alarm, heater burnout detection.
- Mounting & Design: Modular DIN-rail mount, space-saving, low power consumption.
Omron Temperature Controller Technology
PID Control & Auto-Tuning Technology
Omron Temperature Controllers use advanced PID algorithms combining Proportional, Integral, and Derivative parameters to maintain precise temperature regulation. The controller continuously compares process variable (PV) to the setpoint and adjusts control output (MV) accordingly.
Auto-tuning calculates optimal PID parameters based on system thermal characteristics, reducing commissioning time. Adaptive control ensures stability under load variation.
Models such as Omron E5AC and Omron E5CN offer high-speed sampling and improved disturbance rejection.
Sensor Compatibility & Input Accuracy
Omron Temperature Controllers support multiple sensor inputs:
- Thermocouple (J, K, T type)
- RTD
- PT100
- Analog voltage input
High-resolution A/D conversion ensures tight input accuracy. Cold junction compensation enhances thermocouple stability. Digital filtering improves noise immunity in industrial electrical environments.
The Omron E5CS supports common thermocouple inputs for cost-effective applications.
Output Types & Control Methods
Omron controllers offer flexible output configurations:
- Relay output (mechanical switching)
- SSR output (voltage pulse)
- 4–20mA current output
- Voltage pulse output
Selection depends on load type and switching frequency. SSR output is preferred for fast-cycling heaters. Analog output integrates with external power controllers. Alarm outputs support high-limit, low-limit, and deviation alarms.
Communication & PLC Integration
Omron Temperature Controllers support:
- Modbus RTU
- RS-485 multi-drop communication
- Ethernet (model dependent)
Controllers can also interface with PLC and HMI systems for centralized temperature visualization.
Industrial Design & Environmental Protection
Designed for panel mounting, Omron controllers are available in:
-
48×48 DIN size
-
96×96 DIN size
Front panel IP66 rating ensures protection from dust and water splashes. Operating temperature range supports Indian industrial conditions.
Product List:
Model No |
Image |
Shape |
Input Points |
Output Type |
Power Supply Voltage |
Terminal Type |
|---|---|---|---|---|---|---|
| E5CC-QX2ASM-800 |  |
DIN48 x 48 | 1 point | Voltage Output | 100 to 240 VAC (50/60 Hz) | Screw Terminal |
| E5CC-QX2DSM-800 |  |
DIN (48 x 48 mm) | 1 point | Voltage Output | 24 VAC, 50/60 Hz; 24 VDC | Screw |
| E5DC-QX2ASM-802 |  |
22.5 × 96 mm | 1 point | Voltage output | 100-240 VAC (50/60 Hz) | Screw Terminals |
| E5CWL-R1TC |  |
1/16 DIN 48 × 48 × 60 | 1 point | Relay | 100 to 240 VAC, 50/60 Hz | – |
How to Select an Omron Temperature Controller
Selection should be based on engineering parameters:
- Application Type: Injection molding, ovens, boilers, HVAC, pharmaceutical reactors, or chemical plants.
- Sensor Type: Confirm compatibility with thermocouple, RTD, or PT100.
- Required Accuracy: High-precision processes require PID with short sampling time.
- Output Method: Relay output for low switching; SSR output for fast heating; 4–20mA for analog control
- Communication Needs: If PLC integration required, select RS-485 or Ethernet models.
- Panel Space: Choose 48×48 or 96×96 DIN size.
- Environmental Conditions: Consider IP rating and electrical noise immunity.
Why Industries Choose Omron Temperature Controllers
- Stable PID Performance: Advanced control algorithms maintain consistent PV regulation.
- Reliable Sensor Compatibility: Supports thermocouple and RTD with accurate compensation.
- Industrial Durability: IP66 front panel and robust internal circuitry.
- Flexible Communication Options: Supports Modbus RTU and PLC connectivity.
- Long Operational Lifecycle: Designed for continuous industrial operation.
Frequently Asked Questions
What is an Omron Temperature Controller?
An Omron Temperature Controller is an industrial control device that regulates process temperature using PID or ON/OFF control logic. It monitors temperature via thermocouple or RTD input and adjusts control output to maintain a defined setpoint.
What is the use of Omron Temperature Controller?
Omron temperature controllers are used to maintain and control the temperature of a process or system in industrial applications. They measure the temperature through sensors and provide control output to maintain the desired temperature.
They are commonly used in applications such as food processing, chemical manufacturing, and HVAC systems. Temperature controllers can improve process efficiency; reduce energy consumption, and increase product quality and consistency.
What is "PID Control"?
In industrial settings, “PID Control” is a popular feedback control algorithm that works wonders in maintaining a steady state. When using this technique, we compare our desired set point against actual process variable (PV) and then calculate how much control effort needs to be applied based on what we find.
To do so accurately; we rely on three key components – Proportional-Integral-Derivative Control: proportionate calculations for outputs related directly with existing errors; integration calculations which sum up these errors over time; lastly derivations for evaluating rates at which those errors are changing.
What is ON/OFF Operation?
Industries and automated processes employ an elementary control mechanism called ON/OFF operation. It involves switching on/off the output device (i.e., heater/motor) to regulate targeted conditions in industrial production systems.
The approach ensures the maintenance of specified process variables within desired setpoints. The ON/OFF mode operates by making sure that the output device can only be on or off with no intermediate stages of power control available over its speed and strength levels. This method usually applies to uncomplicated procedures that do not warrant accurate controls; for instance, regulating basic heating and cooling operations.
What is the Advantage of Digital Temperature Controller?
The advantages of a digital temperature controller include more precise temperature control, easy programming, and the ability to store and recall temperature profiles.
What are the 4 Common Types of Temperature Sensors?
Let’s start by taking a look at thermocouples. These sensors operate by detecting voltage and are composed of two different types of metal wires. When there is a difference in temperature the wires produce a voltage.
They are known for being sturdy responding quickly and measuring temperatures over a wide range. Moving on to Resistance Temperature Detectors (RTDs) these small devices function by reading the resistance of the RTD element and aligning it with temperature changes. Their ability to maintain accuracy and stability across a wide range of temperatures makes them popular in both industrial and scientific settings.
Thermistors are another type of resistor that vary significantly in resistance with temperature changes. They are highly sensitive to fluctuations in temperature allowing them to take precise measurements; however they have a more limited range compared to other sensors. Finally we have Infrared Sensors (IR Sensors).
These innovative sensors employ infrared radiation to take precise temperature measurements – very impressive indeed! IR Sensors are game changers when it comes to measuring temperature accurately from a distance under challenging conditions where other sensory products fail due to factors like extreme heat exposure or inaccessibility. The fact that they can detect changes in heat intensity without being physically touching the object being measured makes them stand out from other sensing devices.
This feature enables them to measure temperatures even when objects are moving around or hard to reach locations. Its crucial though; not all IR sensors function equally well under varying circumstances as each type has its own advantages and limitations which should be taken into account while choosing one based on specific criteria such as desired level of accuracy needed or reaction time required depending on environmental variables.
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