Omron EJ1N-TC4A-QQ Modular Temperature Controller

The Omron EJ1N-TC4A-QQ Temperature Controller is a modular temperature controller configured with multiple SSR-driving voltage outputs for industrial temperature regulation. Its module-type construction accepts 24 VDC, within an allowable range of 85% to 110% of rated power supply voltage, and supports ON/OFF or 2-PID control with auto-tuning and self-tuning. The controller provides four SSR-driving voltage output points, represented by two groups of two voltage outputs in the supplied configuration. Screw terminals with M3 connections provide the wiring interface for integration into the temperature control system. The EJ1N-TC4A-QQ belongs to the EJ1N Series within the multi-output temperature controller range from Omron control products.

Brand	Omron
Product	Temperature Controllers
Model Number	EJ1N-TC4A-QQ

Omron EJ1N-TC4A-QQ Temperature Controller - Technical Specifications

Specification	Value
Shape	Module type
Fixed/Programmable	Fixed
Power supply voltage	24 VDC
Operating voltage range/ Allowable voltage variable range	85 to 110% of the power supply voltage
Power consumption	3 W max. (At maximum load)
Control method	ON/OFF or 2-PID control with auto-tuning and self-tuning
Number of input points	4 point
Input Type/Temperature input	Thermocouple: K, J, T, E, L, U, N, R, S, B, W/C, PLⅡ Platinum resistance thermometer: Pt100, JPt100 Infrared Thermosensor: 10 to 70 ℃, 60 to 120 ℃, 115 to 165 ℃, 140 to 260 ℃
Control output 1	Voltage output (for driving SSR) 2-points
Control output 2	Voltage output (for driving SSR) 2-points
Insulation resistance	20 MΩ min. (at 500 VDC)
Dielectric strength	600 VAC 50/60 Hz for 1 min (Between current-carrying terminals of different polarity)
Vibration resistance	Malfunction: 10 to 55 Hz, 20 m/s2 for 2 h each in X, Y, and Z directions
Shock resistance	Malfunction: 150 m/s2, in each 6 directions 3 times
Ambient temperature (Operating)	-10 to 55 ℃ (with no freezing or condensation) For 3-year warranty: -10 to 50 ℃ (with no freezing or condensation)
Ambient temperature (Storage)	-25 to 65 ℃ (with no freezing or condensation)
Ambient humidity (Operating)	25 to 85 % (with no freezing or condensation)
Degree of protection	Rear case: IP20, Terminal section: IP00
Terminal type	Screw terminal (M3)
Weight	Controller: Approx. 210 g, Adapter: Approx. 4 g × 2