Configured for closed-loop thermal regulation and RS-485 serial telemetry in Modbus/CompoWay networks, the Omron E5CC-QX3A5M-003 (E5CC Digital Temperature Controller) provides direct physical/electrical execution.

Part Number Code Structure

• E5CC: 48 mm x 48 mm DIN digital temperature controller platform base.
• QX: Voltage output for driving Solid State Relays (12 VDC +/-21%, 21 mA max).
• 3: 3 auxiliary relay alarm outputs with a single common connection.
• A: Operating line power supply rated from 100 to 240 VAC at 50/60 Hz.
• 5: Wiring termination provided via rear screw terminal block with protective terminal cover.
• M: Universal input sensor compatibility (thermocouples, RTDs, analog current/voltage).
• 003: Expansion option suite including RS-485 serial communication along with 3-phase heater burnout (HB) and heater short (HS) alarm diagnostics.

Technical Performance Parameters

Deterministic Network Telemetry & Firmware Processing

The internal microprocessor executes a high-speed 50 ms sampling cycle for real-time PID regulation and anti-reset windup control. Integrated RS-485 serial communication runs deterministic networks via Modbus-RTU or CompoWay/F protocols, transmitting process variables and alarm flags directly to host PLC nodes. Non-volatile EEPROM memory ensures complete firmware flash compatibility, securing user calibration maps, PID settings, and communication baud rates across mains power loss events without requiring battery backup.

Package Deliverables & Accessories

• 1 x Omron E5CC-QX3A5M-003 Digital Temperature Controller
• 1 x Flush Panel Mounting Adapter Bracket
• 1 x Waterproof Front Panel Sealing Ring
• 1 x Protective Rear Terminal Cover

Field Wiring & Mechanical Mounting Rules

Panel Cutout & Ingress Sealing

• Prepare a standard 45 mm x 45 mm panel cutout; slip the rubber sealing ring over the front housing bezel before inserting into the door to maintain IP66 front-face sealing.
• Slide the panel mounting adapter from the rear of the unit until the ratcheting mechanisms seat tight against the interior panel face.

Signal & Power Terminal Connections

• Connect AC line supply and control loop wiring to the rear screw terminals using crimped M3 spades or ring lugs; tighten screws to a maximum torque of 0.5 N-m.
• Route RS-485 serial communication lines and Current Transformer (CT) leads using shielded twisted-pair cables, bonding the outer braid shield to panel earth ground at one point only.

Frequently Asked Questions

• What signal drive type is generated by the QX output designation?

  The QX output delivers a 12 VDC PNP voltage pulse rated up to 21 mA, designed specifically to drive external Solid State Relays (SSRs).

• Which serial communication protocols are supported over the RS-485 interface?

  The option 003 hardware supports standard Modbus-RTU slave protocol as well as Omron proprietary CompoWay/F serial communication protocols.

• How does the controller detect 3-phase heater burnout conditions?

  The unit processes AC current inputs from two external Current Transformers (CTs) to monitor individual phase line currents during heater conduction cycles.

• What sensor types can be terminated to the universal input terminals?

  The input stage accepts standard thermocouples (K, J, T, E, R, S, B), Pt100 RTDs, linear 4-20 mA current loops, and 0-10 VDC voltage signals.

• What relay rating is provided on the 3 auxiliary output contacts?

  The three auxiliary relay outputs support switching resistive loads up to 250 VAC at 2 A using a single shared common line.

• How is configuration parameter data protected against power supply failure?

  Settings are written to internal EEPROM non-volatile memory, maintaining parameter retention indefinitely across complete AC line outages.

• What is the loop update rate of the internal PID control calculation?

  The instrument executes complete analog input sampling and PID algorithm processing at a fixed cycle rate of 50 ms.

• What front panel ingress protection rating is achieved after installation?

  When mounted with the included rubber gasket, the front display bezel provides IP66 water-resistant and dust-tight protection.