NEW Omron E5CK-AA1-500 Digital Temperature Controller E5CKAA1500

Omron E5CK-AA1-500 | E5CK Series 1/16 DIN Digital Process Controller — 100–240VAC / Modular / Temperature and Analog Input

What the E5CK-AA1-500 Is — and What It Is Not

The E5CK-AA1-500 is the base unit with terminal cover for Omron's E5CK process controller. This distinction matters when ordering a replacement: the AA1-500 is the base controller body, not a complete control loop. The actual output configuration — relay, voltage pulse, current, SSR drive — is determined by the output unit that is fitted to the base. A base unit without an output unit does nothing useful. Before ordering, identify what output unit is currently installed in the machine and source it alongside the base if it is also being replaced.

The E5CK family is Omron's compact advanced controller — positioned for dedicated temperature and process control rather than PLC-style sequence logic. The modular structure means the same base accepts different output units and one option unit, letting it adapt to different control loop requirements (heating, cooling, heating and cooling, current output) without changing the panel cutout or the operator interface

Temperature and Analog Inputs

The E5CK base accepts thermocouple and RTD inputs for temperature measurement, and analog inputs (voltage or current) for process variable measurement. Input type is configured through the front-panel parameter settings. The combination covers the practical range of single-loop process control: furnace temperature, heater zone control, oven profile holding, packaging heat sealing, utility loop monitoring.

The AA1 input specification within the E5CK family indicates the base is configured for universal input (multiple sensor types selectable). The 500 suffix identifies the 100–240VAC supply variant, as distinct from DC-supply variants in the same family.

Key Specifications

FAQ

Q1: What is the E5CK-AA1-500 and what does the code mean?

The E5CK-AA1-500 is the modular base unit with terminal cover for Omron's E5CK 1/16 DIN process controller. AA1 identifies the universal input configuration; 500 identifies the 100–240VAC supply class. The base unit alone does not have a complete control output — the output is determined by the output unit fitted to the base.

Q2: Why must the output unit be identified before ordering?

The E5CK base has one output unit slot. The output type — relay, voltage pulse (for SSR), current, or other — is determined by the module fitted in that slot. The AA1-500 base without a fitted output unit cannot control anything. When replacing the controller, confirm the output unit currently in the machine and order the correct module alongside the base if it is also being changed.

Q3: What inputs can the E5CK-AA1-500 accept?

Universal inputs: thermocouple types (K, J, T, E, L, U, N, R, S, B, W), platinum RTD (Pt100, JPt100), and analog inputs (0–5V, 1–5V, 0–10V, 0–20mA, 4–20mA). Input type is selected through the controller's parameter settings without any hardware change.

Q4: Is the E5CK-AA1-500 suitable for a process application requiring both heating and cooling output?

A single-output unit provides one control output channel (heating or cooling). For heating/cooling control, the option unit slot can be used with a secondary output unit, allowing the E5CK to manage both directions of a process loop. Confirm the specific output and option unit configuration required for the application before ordering.

Q5: What should be checked before ordering an E5CK-AA1-500 as a replacement?

Confirm: the existing model code on the installed controller (to verify the base variant and supply class), the output unit currently fitted and its wiring connections, the option unit if one is fitted, the panel cutout is 1/16 DIN, and the supply is 100–240VAC. Matching the output unit configuration is the most critical step — the base unit code alone does not define the complete control loop.