Industrial Automation

EJ1

Modular Temperature Controller

EJ1

Implement a Multi-Point Control System Easily with Space Saving and Wire Saving by Connecting Modules

last update: May 15, 2023

Temperature Controller

Standard Control Models

Name	Power supply volt- age	No. of con- trol points	Con- trol out- puts 1 and 2	Con- trol out- puts 3 and 4	Aux- iliary output	Functions		Com- muni- cations func- tions	Input type	Ter- minal	Model
Name	Power supply volt- age	No. of con- trol points	Con- trol out- puts 1 and 2	Con- trol out- puts 3 and 4	Aux- iliary output	Heat- er burn- out alarm	E- vent in- puts	Com- muni- cations func- tions	Input type	Ter- minal	Model
Basic Unit (tem- perature control) *1	24 VDC supplied from the End Unit	2	Voltage output: 2 points (for SSR drive) *2	Tran- sistor output: 2 points (sinking)	None	2 *3	2	G3ZA con- nection port: RS-485 From End Unit: Port A or port B: RS-485	Thermo- couple, platinum resist- ance ther- mometer, analog voltage, and analog current selecta- ble for each channel.	M3 terminal	EJ1N-TC2A-QNHB
		2		Tran- sistor output: 2 points (sinking)		2 *3	2			Screw- less clamp	EJ1N-TC2B-QNHB
		4		Voltage output: 2 points (for SSR drive) *2		None	None			M3 terminal	EJ1N-TC4A-QQ
		4		Voltage output: 2 points (for SSR drive) *2			None			Screw- less clamp	EJ1N-TC4B-QQ
		2	Current output: 2 points	Tran- sistor output: 2 points (sinking)			2			M3 terminal	EJ1N-TC2A-CNB
		2	Current output: 2 points	Tran- sistor output: 2 points (sinking)			2			Screw- less clamp	EJ1N-TC2B-CNB
End Unit *1	24 VDC	None	None	None	Tran- sistor output: 2 points (sinking)		None	Port A or B: RS-485 Con- nector: Port A	No input	M3 terminal	EJ1C-EDUA-NFLK
End Unit *1	24 VDC	None	None	None	Tran- sistor output: 2 points (sinking)		None	Port A or B: RS-485 Con- nector: Port A	No input	De- tachable con- nector	EJ1C-EDUC-NFLK

*1. An End Unit is always required for connection to a Basic Unit.
*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, E54-CT1L, E54-CT3 or E54-CT3L)
separately.
Note: Products for the EtherCAT master are also available. Ask your OMRON sales representative for details.

Refer to the following manual for precautionary information and other information necessary to use the EJ1:
EJ1 Modular Temperature Controllers User’s Manual (Cat. No. H142)

EtherCAT® is registered trademark and patented technology, licensed by Beckhoff Automation GmbH, Germany.

Accessories (Order Separately)

Current Transformer (CT)

Diameter	Model
5.8 dia.	E54-CT1
5.8 dia.	E54-CT1L
12.0 dia.	E54-CT3
12.0 dia.	E54-CT3L

Note: If UL certification is required, be sure to purchase the E54-CT []L (with lead wire) for use. Note that the E54-CT[]
(without lead wire) cannot be used if UL certification is required.

G3ZA Connecting Cable

Cable length	Model
5 m	EJ1C-CBLA050

Rail Mounting Equipment

Name	Model
DIN Track	PFP-100N
DIN Track	PFP-50N

CX-Thermo Support Software

Model
EST2-2C-MV4

USB-Serial Conversion Cable

Model
E58-CIFQ1

last update: May 15, 2023

Product Category

Control Components
- Temperature Controllers
  - Module Type
    - EJ1

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