ES2-THB

Modular Temperature ControllerEJ1In-panel Temperature Controller with Flexible ModularDesign and Wide Integration with Host Devices• The compact modular structure enables construction of temperature systems optimally suited to the application.• Connection can be made to a Programmable Controller without any programming required, reducing the number of steps required in ladder programming design.• One fully universal-input Unit includes a thermocouple, platinum-resistance thermometer, and analog input for easy selection and reduced inventory requirements.• Connect directly to the G3ZA Multi-channel Power Controller using optimum cycle control for high-accuracy regulation with minimal noise.• Autotuning (AT) can be used for independent heating/cooling PID control, and self-tuning (ST) can be used to calculate the PID constants with the step response method.• Up to 16 Temperature Controllers can be connected to a single DeviceNetCommunications Unit. Supports DeviceNet Communications.Ordering Information■ Temperature ControllerStandard Control ModelsRefer to the Safety Precautions on page 21.Name Power supplyNo. of controlControl outputsControl outputsAuxiliary outputFunctions Communications functionsInput typeTerminal Modelvoltagepoints1 and 23 and 4HeaterburnoutalarmEventinputsBasic Unit24 VDC2 Voltage output:TransistorNone 22 G3ZA connectionThermocouple,M3 terminal EJ1N-TC2A-QNHB(temperature control)(See note 1.)supplied from the End Unit2 points(for SSR drive)(See note 2.)output: 2 points(sinking)(See note 3.)port: RS-485From End Unit: Port A or port B:platinum resistance thermometer,Screw-less clampEJ1N-TC2B-QNHB4 Voltage output: 2NoneNoneRS-485analog voltage,M3 terminal EJ1N-TC4A-QQV1.2points (for SSRdrive) (See note2.)2 Current output:Transistorand analog current selectable for2 each channel.Screw-less clampEJ1N-TC4B-QQM3 terminal EJ1N-TC2A-CNB2 pointsoutput: 2 points(sinking)Screw-less clampEJ1N-TC2B-CNBHFU with Programless Communications (See note 1.)V1.2NoneNone NoneTransistor output:4 points (sinking)4 Port C: RS-485 or RS-232C selectable.From End Unit: Port A: RS-485Port C: RS-422From End Unit: Port A: RS-485No input M3 terminal EJ1N-HFUA-NFLK Screw-less clampEJ1N-HFUB-NFLKM3 terminal EJ1N-HFUA-NFL2Screw-less clampEJ1N-HFUB-NFL2HFU with DeviceNet Communications (See note 1.)NoneNone DeviceNet communicationsScrew-less clampEJ1N-HFUB-DRTEnd Unit(See note 1.)24 VDC Transistor output:2 points (sinking)None Port A or B: RS-485Connector: Port AM3 terminal EJ1C-EDUA-NFLK DetachableconnectorEJ1C-EDUC-NFLKNote:1. An End Unit is always required for connection to a Basic Unit or an HFU. An HFU cannot operate without a Basic Unit. External communications cannot be performed when using aBasic Unit only.2. For heating/cooling control applications, control outputs 3 and 4 on the 2-point models are used for the cooling or heating control outputs.On the 4-point models, heating/cooling control is performed for the two input points.3. When using the heater burnout alarm, purchase a Current Transformer (E54-CT1 or E54-CT3) separately.Functional UpgradesRefer to page 18 for details.Upgrade functions are supported by the indicated version ("V1.1" or "V1.2") or a higher version of the software.Refer to the following manual for precautionary information and other information necessary to use the EJ1: EJ1 Modular Temperature Controller User’s Manual (Cat. No. H142)Modular Temperature Controller EJ1 1