E5CZ-R2MTD datasheet(34/64 Pages) OMRON

34 / 64 page

Precautions for Safe Use

Be sure to observe the following precautions to prevent malfunction

or adverse affects on the performance or functionality of the product.

Not doing so may occasionally result in faulty operation.

1. This product is specifically designed for indoor use only.

Do not use this product outdoors or in any of the following places:

• Places directly subject to heat radiated from heating equipment.

• Places subject to splashing liquid or oil atmosphere.

• Places subject to direct sunlight.

• Places subject to dust or corrosive gas (in particular, sulfide gas

and ammonia gas).

• Places subject to intense temperature change.

• Places subject to icing and condensation.

• Places subject to vibration and large shocks.

2. Use and store the product within the rated ambient temperature

and humidity.

Gang-mounting two or more Temperature Controllers, or

mounting Temperature Controllers above each other may cause

heat to build up inside the Temperature Controllers, which will

shorten their service life. In such a case, use forced cooling by

fans or other means of air ventilation to cool down the

Temperature Controllers.

3. To allow heat to escape, do not block the area around the product.

Do not block the ventilation holes on the product.

4. Be sure to wire properly with correct polarity of terminals.

5. Use the specified size (M3.5, width 7.2 mm or less) crimped

terminals for wiring. To connect bare wires to the terminal block,

use stranded or solid copper wires with a gage of AWG24 to

AWG14 (equal to a cross-sectional area of 0.205 to 2.081 mm2).

(The stripping length is 5 to 6 mm.) Up to two wires of the same

size and type or two crimp terminals can be inserted into a single

terminal.

6. Do not wire the terminals that are not used.

7. To avoid inductive noise, keep the wiring for the product’s terminal

block away from power cables carry high voltages or large

currents. Also, do not wire power lines together with or parallel to

product wiring. Using shielded cables and using separate conduits

or ducts is recommended.

Attach a surge suppressor or noise filter to peripheral devices that

generate noise (in particular, motors, transformers, solenoids,

magnetic coils, or other equipment that have an inductance

component).

When a noise filter is used at the power supply, first check the

voltage or current, and attach the noise filter as close as possible

to the product.

Allow as much space as possible between the product and

devices that generate powerful high frequencies (high-frequency

welders, high-frequency sewing machines, etc.) or surge.

8. Use this product within the rated load and power supply.

9. Make sure that the rated voltage is attained within 2 seconds of

turning ON the power by using a switch or relay contact. If the

voltage is applied gradually, the power may not be reset or output

malfunctions may occur.

10.Make sure that the Temperature Controller has 30 minutes or

more to warm up after turning ON the power before starting actual

control operations to ensure the correct temperature display.

11.When executing self-tuning, turn ON power to the load (e.g.,

heater) at the same time as or before supplying power to the

product. If power is turned ON to the product before turning ON

power to the load, self-tuning will not be performed properly and

optimum control will not be achieved.

12.A switch or circuit breaker must be provided close to the product.

The switch or circuit breaker must be within easy reach of the

operator, and must be marked as a disconnecting means for this

unit.

13.Always turn OFF the power supply before pulling out the interior of

the product, and never touch nor apply shock to the terminals or

electronic components. When inserting the interior of the product,

do not allow the electronic components to touch the case.

14.Do not use paint thinner or similar chemical to clean with. Use

standard grade alcohol.

15.Design the system (e.g., control panel) considering the 2 seconds

of delay that the product's output to be set after power ON.

16.The output may turn OFF when shifting to certain levels. Take this

into consideration when performing control.

17.The number of EEPROM write operations is limited. Therefore,

use RAM write mode when frequently overwriting data during

communications or other operations.

18.Always touch a grounded piece of metal before touching the

Temperature Controller to discharge static electricity from your

body.

19.Control output that is voltage output is not isolated from the

internal circuits. When using a grounded thermocouple, do not

connect any of the control output terminals to ground. (Doing so

may result in an unwanted circuit path, causing error in the

measured temperature.

20.When replacing the body of the Temperature Controller, check the

condition of the terminals. If corroded terminals are used, contact

failure in the terminals may cause the temperature inside the

Temperature Controller to increase, possibly resulting in fire. If the

terminals are corroded, replace the case as well.

21.Use suitable tools when taking the Temperature Controller apart

for disposal. Sharp parts inside the Temperature Controller may

cause injury.

22.Check the orientation of the connectors on the Conversion Cable

before connecting the Conversion Cable. Do not force a connector

if it does not connect smoothly. Using excessive force may

damage the connector.

23.Do not place heavy object on the Conversion Cable, bend the

cable past its natural bending radius, or pull on the cable with

undue force.

24.Do not connect or disconnect the Conversion Cable while

communications are in progress. Product faults or malfunction

may occur.

25.Make sure that the Conversion Cable’s metal components are not

touching the external power terminals.

26.Do not touch the connectors on the Conversion Cable with wet

hands. Electrical shock may result.

Precautions for Correct Use

Service Life

1. Use the product within the following temperature and humidity

ranges:

Temperature:

−10 to 55°C (with no icing or condensation)

Humidity: 25% to 85%

If the product is installed inside a control board, the ambient

temperature must be kept to under 55

°C, including the

temperature around the product.

2. The service life of electronic devices like Temperature Controllers

is determined not only by the number of times the relay is switched

but also by the service life of internal electronic components.

Component service life is affected by the ambient temperature: the

higher the temperature, the shorter the service life and, the lower

the temperature, the longer the service life. Therefore, the service

life can be extended by lowering the temperature of the

Temperature Controller.

3. When two or more Temperature Controllers are mounted

horizontally close to each other or vertically next to one another,

the internal temperature will increase due to heat radiated by the

Temperature Controllers and the service life will decrease. In such

a case, use forced cooling by fans or other means of air ventilation

to cool down the Temperature Controllers. When providing forced

cooling, however, be careful not to cool down the terminals

sections alone to avoid measurement errors.

Measurement Accuracy

1. When extending or connecting the thermocouple lead wire, be

sure to use compensating wires that match the thermocouple

types.

2. When extending or connecting the lead wire of the platinum

resistance thermometer, be sure to use wires that have low

resistance and keep the resistance of the three lead wires the

same.

3. Mount the product so that it is horizontally level.

4. If the measurement accuracy is low, check to see if input shift has

been set correctly.

Waterproofing

The degree of protection is as shown below. Sections without any

specification on their degree of protection or those with IP

@0 are not

waterproof.

E5CZ

E5AZ

E5EZ

Front panel: IP66 (indoor use)

Rear case: IP20, Terminal section: IP00

E5CZ-U

Front panel: Equivalent to IP50, rear case: IP20,

Terminals: IP00

E5CZ-R2MTD 数据表(PDF) 34 Page - Omron Electronics LLC

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