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-|Transparent Guide|-

TCD210158AB

Refrigeration Temperature 

Controllers

TC3YF Series

PRODUCT MANUAL

For your safety, read and follow the considerations written in the instruction 
manual, other manuals and Autonics website.

The specifications, dimensions, etc are subject to change without notice for product 
improvement Some models may be discontinued without notice. 

ᜧ ᜣ ᜫ

Features

• ON/OFF control
• 

Standard input type : thermistor (NTC)

 

- RTD(Pt100Ω) input models available upon request.

• Temperature range 

- Thermistor (NTC) : -40.0 to 99.9 ℃ (-40 to 212 ℉)

 

- RTD (Pt100 Ω) : -99.9 to 99.9 ℃ (-148 to 212 ℉)

• 

Various functions available for optimal cooling control

 

- Auto/manual defrost selection, compressor start-up delay, restart delay, minimum 
ON time, end-defrost delay, evaporator fan operation delay

• Input correction function
• 

Operation cycle programming available to protect contents in case of error

• 

Follow instructions in ‘Cautions during Use’. Otherwise, it may cause unexpected 

accidents.

• 

Check the polarity of the terminals before wiring the temperature sensor. For RTD 

temperature sensor, wire it as 3-wire type, using cables in same thickness and length. 

For thermocouple (CT) temperature sensor, use the designated compensation wire for 

extending wire.

• 

Keep away from high voltage lines or power lines to prevent inductive noise. In case 

installing power line and input signal line closely, use line filter or varistor at power line 

and shielded wire at input signal line. Do not use near the equipment which generates 

strong magnetic force or high frequency noise.

• 

Install a power switch or circuit breaker in the easily accessible place for supplying or 

disconnecting the power.

• 

Do not use the unit for other purpose (e.g. voltmeter, ammeter), but temperature 

controller.

• 

12-24 VDCᜡ 

p

ower supply should be insulated and limited voltage/current or Class 2, 

SELV power supply device.

• 

Make a required space around the unit for radiation of heat. For accurate temperature 

measurement, warm up the unit over 20 min after turning on the power.

Safety Considerations

• 

Observe all ‘Safety Considerations’ for safe and proper operation to avoid hazards.

• 

᜸ symbol indicates caution due to special circumstances in which hazards may occur.

᜸ Warning

  

Failure to follow instructions may result in serious injury or death

01. 

Fail-safe device must be installed when using the unit with machinery that 

may cause serious injury or substantial economic loss.(e.g. nuclear power 

control, medical equipment, ships, vehicles, railways, aircraft, combustion 

apparatus, safety equipment, crime/disaster prevention devices, etc.)

Failure to follow this instruction may result in personal injury, economic loss or fire.

02. 

Do not use the unit in the place where flammable/explosive/corrosive gas, 

high humidity, direct sunlight, radiant heat, vibration, impact or salinity 

may be present.

Failure to follow this instruction may result in explosion or fire.

03. 

Install on a device panel to use.

Failure to follow this instruction may result in electric shock.

04. 

Do not connect, repair, or inspect the unit while connected to a power 

source.

Failure to follow this instruction may result in fire or electric shock.

05. 

Check ‘Connections’ before wiring.

Failure to follow this instruction may result in fire.

06. Do not disassemble or modify the unit.

Failure to follow this instruction may result in fire or electric shock.

᜸ Caution

  

Failure to follow instructions may result in injury or product damage

01. 

When connecting the power input and relay output, use AWG 28 to 12 (0.50 

mm

2

) cable or over and tighten the terminal screw with a tightening torque 

of 0.3 to 0.4 N m. 

When connecting the sensor input without dedicated cable, use AWG 28 to 

16 cable and tighten the terminal screw with a tightening torque of 0.3 to 0.4 

N m. 

Failure to follow this instruction may result in fire or malfunction due to contact 

failure. 

02. 

Use the unit within the rated specifications.

Failure to follow this instruction may result in fire or product damage

03. 

Use a dry cloth to clean the unit, and do not use water or organic solvent.

Failure to follow this instruction may result in fire or electric shock.

04. 

Keep the product away from metal chip, dust, and wire residue which flow 

into the unit.

Failure to follow this instruction may result in fire or product damage. 

Cautions during Use

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