temperature controllers selection guide - omron on...

Cat.No.Y101-E1-03

3

CONTENTS

Product Lineup 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Temperature Controller Selection 1 6. . . . . . . . . . . . . . . . . Temperature Controller Selection 2 8. . . . . . . . . . . . . . . . . Output Device Selection 10. . . . . . . . . . . . . . . . . . . . . . . . . . . Input Device Selection 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Applications 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selection Guide 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Technical Information 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Glossary 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Standards 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cycle Control Units

ON/OFF Control SSRs

PLC Units

C200H-TC/-TV/-PID CQM1-TCCJ1W-TC

E5ZN

Cycle Control

G32A-EA G3PA G3PC

G3PB (Single-phase)G3PB (Three-phase)

G3NA

Phase ControlPower Controllers

G3PX (Single-phase) G3PX (Three-phase)

Multi-point Temperature Controllers

(DeviceNet)

Digital TemperatureControllers

Modular Temperature Controllers

ES100P ES100X

Data RecorderE55A-E/-F Interface Converters

K3SC

Block-type Switching Power SuppliesS8TS

Switching Power SuppliesS8VS

Heater Burnout Alarms K2CU

Intelligent Signal ProcessorsK3NH/K3MA-L

5

Equipped with nearly all the standard functions required in Temperature Controllers to allow use in a wide variety of machines and control panels.

A Variety of Different Sizes

Improvements in Basic Functions and Performance

Equipped with the performance and functionality, including auto-tuning and self-tuning, to fulfill almost any kind of temperature control application.

CompactA depth of 78 mm allows these Temperature Controllers to fit into thinner control panels (except for the E5GN). The front panel of the E5GN has dimensions of 48 24 mm for double-size display of PVs and SPs.

40 mm

E5CJ

Energy Savings and High Reliability

Existing models

(E5CJ)

E5CN (Approx. 7 VA)

(Approx. 12 VA)

(Power consumption)

For smaller installations...For smaller installations...

22.5 mm

E5ZNModular Temperature Controllers

Expansion According to Necessity

Less Maintenance RequiredSimpler Setup

Easier Software DevelopmentUsing the E5ZN-SDL to set items that do not require setting with an operating panel eliminates the need for software to make and display multiple settings.

The Temperature Controller can be replaced without changing the wiring, meaning less work and fewer wiring errors.

Ultra-slim model of width 22.5 mm. Side connectors are used for power supply and RS-485 connections between Units and so wiring between the panel surface and the panel interior is only required for the display device.

The number of temperature input points can be increased without adding operating panels or restructuring the control panel. Temperature control can be performed for 2 channels per Unit up to a maximum of 32 channels.

Unique power supply technology enables an energy saving of 40% compared to existing models (power consumption: approx. 7 VA). The suppression of heat generation and improved reliability ensure at least 3 years of use.

40% energy saving

(48 48 mm)

E5GN(48 24 mm)

Downsize the installation by using a Programmable Terminal for both operation and display. These Temperature Controllers are recommended for applications not requiring setting and display at the front of the panel.

Setting Display UnitE5ZN-SDL

The lineup includes the compact E5GN (48 24 mm) and the E5AN (96 96 mm), which has a large display and keys.

6

Temperature Controller Selection 1Temperature Controller Selection 1

E5CK

PV

SV

OUT2

OUT1

MANU STOP RMT AT SUB1

AM

E5CK

PV

SV

OUT2

OUT1

MANU STOP RMT AT SUB1

AM

Applications

12

Fryer A low-cost Temperature Controller that hasa process value display is required for thetemperature control of a fryer.

Oil

E5CN

OilTemperaturesensor

Oil-flow sensor Gas burner

Alarmoutput

Gas

Shut-offvalve Buzzer

Oil-flow sensor: The oil-flow sensor detects the flow of oil and shuts offthe burner if there is a decrease in the quantity of oil flow.

Temperature Controller: The Temperature Controller is in ON/OFF control of theoil temperature at 160°C. If the oil temperature exceeds180°C, the alarm output turns ON, the buzzer goes off,and the valve is shut-off.

Rack-type Ovenat a Bakery

Changes in temperature setting arerequired for various types of bread.E5EN

Heater

BreadA

Temperature sensor

E5ENTemperatureController

Set value selector

Example:Set point 0 for bread A: 170°CSet point 1 for bread B: 180°CSet point 2 for bread C: 190°CSet point 3 for bread D: 200°C

Max. 4 set points

Four set points can be stored in the memory of the E5EN,any of which can be selected with ease.

Injection MoldingMachine

Changes in control temperature andPID constants are required for varioustypes of products.

E5ZE

Mold

7 sensors

Banksavailable

The bank is selected with theProgrammable Controller.

The control temperature andPID constants are selectedaccording to the product type.

The E5ZE is a multipoint, single-board Temperature Controllerwith 8 banks. Use the C200HX, C200HG, or C200HEProgrammable Controller to select the data in each bank, suchas control temperature and PID constant data for productcontrol.The SYSMAC C200HX, C200HG, and C200HE ProgrammableControllers have a built-in protocol macro function.

E5CN

E5ZE

E5ZE

E5ZE

E5ZE

E5ZE

E5ZD

Applications

13

Constant TemperatureOven

Simple but precise temperaturecontrol is required for a constanttemperature oven.

ES100P

Temperature

Heater

The temperature pattern is set in the ES100P Digital Controlleroperating with a start signal.

Furnace High-precision temperature controlis required for a furnace.E5�K

BaF2 window

Furnace

Products The E5�K Digital Controller and the ES1 Non-contactSensor are used in combination to check thetemperature of the product for precise quality control.The temperature of the processed products can bechecked for precise quality control. Apply BaF2infrared-transparent material to the windows.

ES100P

Constanttemperatureoven

ESI

E5�K

ESI

minutes

Packing Machine Less space and wiring work are requiredfor packing machines.

E5ZN

With the E5ZN Modular Temperature Controller, thecontrol panel can be downsized and wiring between thepanel surface and the panel interior is only required forthe display device. In addition, connecting aCPM2C–CIF21 Simple Communications Unit eliminatesthe need for communications programming.

E5ZN-SDLE5ZN-SCT�S

E5ZN-2�

CPM2C

Applications

14

Serial CommunicationsAdvantage

• Flexible expansion is possible in Unit–configuredinstallations.

• Programming requirements can be reduced usingthe CPM2C–CIF21.

• Combining with a computer enables use of datalogging and recipe functions.

Applications

• Baking furnace (tunnel furnace)

Explanation

• The temperature and conveyor control systems areseparate.

• User maintenance is easy.

Tunnel Furnace

E5ZN-SDL

E5ZN CPM2C-CIF21

CPM2CComputer for datamaintenance

Conveyor control

Tunnelfurnace

SSR SSR

SP RampAdvantage

• Prevents workpieces from radical heating.

Applications

• Applications where the thermal shock is unfavor-able.

• Simple program control

Explanation

• The ceramic baking furnace is in temperaturecontrol with a gas burner.

• A smooth temperature rise is required because theceramic material may crack if there is a suddentemperature rise.

Ceramic Baking Furnace

SP ramp

Targetvalue

SP rampset value

SP ramp time

Time

E5CK

4 to 20 mA (transmission output)

Temperaturesensor

Recorder

Burner

4 to 20 mA(current output)

Applications

15

Remote SPAdvantage

• Uses external 4- to 20-mA analog signals as SPvalues.

Applications

• Zone control of tunnel furnace

Explanation

• The electric furnace is in zone control using theremote SP function of the Digital Controllers.

• Three Digital Controllers are used to make thefurnace temperature even.

• Selectable patterns are stored in the ES100P. Thesystem is in operation with the start signal andaccording to the selected pattern.

• The remote SP function is in control of the threezones with the same pattern.

Tunnel Furnace (Electric Furnace)Start

Pattern selection

Remote signal

E5AK

Temperaturesensor

E5AK

Reset

Remote signal

ES100P

G3PX G3PX G3PX

Temperaturesensor

Temperaturesensor

Heater Heater Heater

Electricfurnace

Input Digital FilterAdvantage

• Smooths radical input changes.

Applications

• Applications with quick thermal response, if theunstable process value unfavorably affects thecontrol of the systems.

• A reduction in noise, if the noise unfavorably affectsthe process value.

Explanation

• The water level of the tank is checked with asupersonic level meter while the water supply anddrain pumps are in ON/OFF control.

• The water surface undulates, thus making theprocess value (PV) unstable. Therefore, an inputdigital filter is applied to alleviate the fluttering of theprocess value.

Water Tank Level Control (3-position Control)

PV before filtered

Filtered PV

Time

E5AK

Timeconstant

Dead band

Watersupply

Target value

Hysteresis

Input digital filter

Hysteresis

Drainage

Level meter Water supply

Drainage

Selection Guide

16

E5�NUse General-purpose models

Model type Digital Temperature Controller

Model E5�N E5CN-U

Item Standard/Communications type Plug-in

Size96 x 96 48 x 96 48 x 48 48 x 24

E5AN E5EN E5CN E5GN

48 x 48

E5CN-U

Controld

ON/OFF Yesmode PID ---

2-PID Yes

Auto-tuning function Yes

Self-tuning function Yes

Hysteresis in ON/OFF controlaction

0.1 to 999.9 EU (in units of 0.1 EU)

Indication accuracy Thermocouple:(±0.5% of indicated value or ±1°C, whichever greater) ±1 digit max.(see note)Platinum resistance thermometer:(±0.5% of indicated value or ±1°C, whichever greater) ±1 digit max.Analog input: ±0.5% FS±1 digit max.CT input: ±5% FS±1 digit max.

Thermocouple:(±1% of indicated value or±2°C, whichever greater)Platinum resistancethermocouple:(±0.5% of indicated valueor ±1°C, whichevergreater)

Input Thermocouple: K, J, T, E, L, U, N, R, S, BPlatinum resistance thermometer: Pt100, JPt100Infrared temperature sensor: 10 to 70°C, 60 to 120°C, 115 to 165°C, 160 to 260°CVoltage input: 0 to 50 mV

Output Relay, voltage, and current output (E5GN: Relay, voltage) Relay, voltage

Heater burnout (not used withcurrent output)

Yes (E5AN, E5EN, E5CN) ---

Communication RS-232C (E5AN/E5EN), RS-485 (E5AN/E5EN/E5CN/E5GN) ---

Supply voltage 100 to 240 VAC or 24 VAC/DC

Terminal configuration Screw terminals Plug-in

EMC Conforms to EN55011 Group 1 class A, EN55011 Group 1 class A, EN61000-4-2, ENV50140,ENV50141, EN61000-4-4

Approved standards UL, CSA

Datasheet Cat. No. H107: E5AN/EN/CN/GN Datasheet H109: E5CN-U Datasheet

Manual Cat. No. H100: E5CN User’s ManualH101: E5GN User’s ManualH111: E5EN User’s ManualH112: E5AN User’s ManualH102: E5AN/EN/CN/GN Communication Manual

Note: This page provides information on main specifications only. Be sure to read the information on detailed specifications and precautionsbefore using the models listed here.

Selection Guide

17

E5�KUse General-purpose models

Model type Digital Process Controller

Model E5�K E5AK/E5EK

Function Standard Position proportional

Item Standard type Communications type Standard type Communicationstype

Size 96 x 96 48 x 96

E5AK E5EK

53 x 53

E5CK

96 x 96 48 x 96

E5AK E5EK

53 x 53

E5CK

96 x 96 48 x 96

E5AK E5EK

96 x 96 48 x 96

E5AK E5EK

Controld


2-PID Yes

PID with fuzzycontrol

---




0.01% to 99.99% FS (in units of 0.01%)

Indication accuracy Thermocouple: (±0.3% of indicated value or ±1°C, whichever greater) ±1 digit max.Platinum resistance thermometer: (±0.2% of indicated value or ±0.8°C, whichever greater) ±1 digitmax. Analog input: ±0.2% FS ±1 digit max.

Input K, J, T, L, U, N, R, S, B, W, PLII, JPt100, or PT100Current or voltage input

Output (Optional) Relay, SSR, voltage, linear voltage, and linear currentoutput

Relay output


Yes (E5AK/E5EK) Loop burnout alarm is available (E5AN/E5EK/E5CK)

---

Communication RS-232C, RS-422, RS-485

Supply voltage 100 to 240 VAC or 24 VAC/DC at 50/60 Hz

Terminal configuration Screw terminals

EMC Conforms to EN50081-2, EN50082-2


Datasheet Cat. No. H084: E5AK/EK Digital Controller DSH079: E5CK Digital Controller Cat.

Manual Cat. No. H083: E5AK User’s ManualH085: E5EK User’s ManualH078: E5CK User’s Manual


Selection Guide

18

E5�K-T Programmable TypeUse General-purpose models

Model type Digital Process Controller

Model E5�K-T programmable type

Function Standard Position proportional

Item Standard type Communications type Standard type Communicationstype

Size 96 x 96 48 x 96

E5AK-TA E5EK-TA

53 x 53

E5CK-TA

96 x 96 48 x 96

E5AK-TA E5EK-TA

53 x 53

E5CK-TA

96 x 96 48 x 96

E5AK-TA E5EK-TA

96 x 96 48 x 96

E5AK-TA E5EK-TA

Controld


2-PID Yes


---




0.01% to 99.99% FS (in units of 0.01%)

Indication accuracy Thermocouple: (±0.3% of indicated value or ±1°C, whichever greater) ±1 digit max.Platinum resistance thermometer: (±0.2% of indicated value or ±0.8°C, whichever greater) ±1 digitmax. Analog input: ±0.2% FS ±1 digit max.

Input K, J, T, L, U, N, R, S, B, W, PLII, JPt100, or PT100Current or voltage input

Output (Optional) Relay, SSR, voltage, linear voltage, and linear currentoutput

Relay output


Yes (E5AK/E5EK) Loop burnout alarm is available (E5AN/E5EK/E5CK)

---

Communication RS-232C, RS-422, RS-485

Supply voltage 100 to 240 VAC or 24 VAC/DC at 50/60 Hz




Datasheet Cat. No. H087: E5�K-T Digital Controller DS

Manual Cat. No. H088: E5AK User’s Manual (Programmable Type)H089: E5EK User’s Manual (Programmable Type)H090: E5CK User’s Manual (Programmable Type)


Selection Guide

19

E5CSUse General-purpose models

Model type Digital Temperature Controller

Model E5CS E5CS-X

Item Plug-in Basic

Size

48 x 48 48 x 48

Controld

ON/OFF Yesmode PID Yes

2-PID ---


---

Auto-tuning function ---



0.2% FS fixed

Indication accuracy ±1% FS ± 1 digit max. ±0.5% FS ± 1 digit max.

Input K, J, L, JPt100, Pt100 or thermistor

Output Relay or voltage output

Supply voltage 100 to 240 VAC or 24 VAC/VDC at 50/60 Hz

Terminal configuration Plug-in model Screw terminals



Datasheet Cat. No. H042 H032


Selection Guide

20

E5C2, E5LUse General-purpose models

Model type Analog Temperature Controller Digital Thermometer

Model E5C2 E5L

Item Basic Basic

Size48 x 48

DigitalThermometer(with externalsetting device)

Externalsettingdevice

Panelmeter

Controld

ON/OFF Yesmode PID P action ---

2-PID ---


---


Self-tuning function ---


0.5% FS fixed Variable

Indication accuracy ±2% FS max. ±2% FS max.

Input K, J, JPt100, and THE THE (element-compatible thermistor)

Output Relay output

Supply voltage 100/110, 200/220 VAC at 50/60 Hz 100, 110, 200, 220 (individual) VAC at 50/60 Hz(common)

Terminal configuration Plug-in model

EMC Conforms to EN50081-2, EN50082-2 ---

Approved standards UL, CSA ---



Selection Guide

21

E5LC, E5LDUse Economy models

Model type Temperature Display Digital Thermometer

Model E5LC E5LD

Item Temperature display only ON/OFF control type

Size

Controld

ON/OFF --- Yesmode PID ---

2-PID ---


---




--- 0.5 to 9.0°C (in units of 0.5°C)

Setting accuracy --- ±1°C + 1 digit max.

Indication accuracy ±1°C ± 1 digit max.

Input Mono-block thermistor

Output --- Relay


---

Supply voltage --- 100, 200 VAC (depends on model) at 50/60 Hz(common)

Terminal configuration --- Screw terminals

EMC Conforms to EN50081-2, EN50082-2 ---

Approved standards ---

Datasheet Cat. No. H035


Selection Guide

22

E5ZE, E5ZDUse Multipoint control models

Model type Multipoint Temperature Controller

Model E5ZE E5ZD E5ZD-8F

Item ---

Size

Controld


2-PID --- Yes ---


Yes --- Yes




0.0 to 99.9°C/°F for ON/OFF control only (in units of 0.1°C/°F)

Indication accuracy Thermocouple: ±0.3% or ±2°C of indicatedvalue (whichever is larger) ±1 digit max.Platinum resistancethermometer: ±0.3% or ±0.8°C (whichever islarger) ± 1 digit max.

±0.5% FS ± 1 digit max.

Input K, J, R, S, T, E, B, N, L, U,W/Re5-26, PT II, Pt100, orJPt100

K, J, JPt100, or Pt100

Output Voltage or current output Voltage or open collector output


Yes

Supply voltage 24 VDC

Terminal configuration Screw terminals Dedicated terminal

EMC Conforms to EN50081-2,EN50082-2

---

Approved standards ---


Manual Cat. No. H077: E5ZE CommunicationsManualH076: E5ZE Operation Manual

Z042: E5ZD Operation Manual (European Version)Z084: E5ZD-�V Operation Manual (European Version)


Selection Guide

23

E5ZNUse Din track mounting models

Model type Module Temperature Controller

Model E5ZN

Item Communications type

Size

(Terminal Unit sold separately) Setting display

Controld


2-PID Yes

Auto-tuning function



0.1 to 999 EU (in units of 0.1 EU)

Indication accuracy Thermocouple: (±0.5% of indicated value or ±1°C, whichever greater) ±1 digit max.Platinum resistance thermometer: (±0.5% of indicated value or ±1°C, whichever greater) ±1 digitmax. Analog input: ±0.5% FS ±1 digit max.

Input Thermocouple: K, J, T, E, L, U, N, R, S, BInfrared temperature sensor: ES1A seriesVoltage input: 0 to 50 mVPlatinum resistance thermometer: Pt100, JPt100

Output Voltage, transistor, or current output


Yes

Supply voltage 24 VAC/DC

Terminal configuration Screw terminal (Terminal Unit sold separately)

EMC EN61326



Manual Cat. No. H113


Selection Guide

24

ES100Use Current and voltage input models

Model type Process Controller

Model ES100X, ES100P

Item Digital Controller

Size 96 x 96 96 x 96

ES100X (fixed value type) ES100P (programmable type)

Controld


2-PID Yes


Yes




0.01% to 99.99% FS in 0.01% FS increments

Indication accuracy ±0.1% FS ± 1 digit max.

Input K, J, T, E, R, S, B, N, L, U, PL II, W, Pt100, or JPt100 voltage or current input

Output Output Unit available to relay, SSR, voltage, and current output.


Yes

Supply voltage 100 to 240 VAC 50/50 Hz


EMC ---



Manual Cat. No. H072: ES100 Communications GuideH069: ES100P Digital Controller Programmer

User’s GuideH115: ES100 Support Software ES/TOOLS for Windows Operation ManualH070: ES100X Digital Controller User’s Manual


Watertight Covers

Model Y92A-��

Size 96 x 96 72 x 72 48 x 96 48 x 48

Y92A-96N Y92A-72N Y92A-49NY92A-48N

131.7

21.9(2)

115.6 29.4

107.7

21.9(2)

29.491.6

131.7

21.9(2)

29.467.6

21.9 14

67.6

87.7 79.2

12

69

(2)

Degree of protection IP66 or NEMA4 (indoors)

Datasheet Cat. No. Q088

Technical Information

25

Configuration Example of Temperature ControlThe following is an example of the configuration of temperature control.

• Relay output

• Voltage output

• Current output

• SSR

• Cycle controller

• Power controller

• Thermocouple

• Platinum resistance thermometer

• Thermistor

TemperatureController

Control signalController

Controlled object

Temperature SensorThe Temperature Sensor consistsof an element protected with apipe. Locate the element, whichconverts temperatures into electricsignals, in places wheretemperature control is required.

Electronic Temperature ControllerThe Electronic Temperature Controlleris a product that receives electric signalinput from the temperature sensor,compares the electric signal input withthe set point, and outputs adjustmentsignals to the Controller.

ControllerThe Controller is used to heat up orcool down furnaces and tubs using adevice, such as a solenoid or fuel valve,to switch electric currents supplied toheaters or coolers.

Temperature ControlThe set point is input into the TemperatureController in order to operate the Tempera-ture Controller. The time required for stabletemperature control varies with the con-trolled object. Attempting to shorten the re-sponse time will usually result in the over-shooting or hunting of temperature. When re-duce the overshooting or hunting of tempera-ture, the response time must not be short-ened. There are applications that requireprompt, stable control in the waveformshown in (1) despite overshooting. There areother applications that require the suppres-sion of overshooting in the waveform shownin (3) despite the long time required to stabi-lize temperature. In other words, the type oftemperature control varies with the applica-tion and purpose. The waveform shown in (2)is considered to be a proper one for standardapplications.

1. The temperature stabilizes after over-shooting several times.

Time

Tem

pera

ture

2. Proper response

Time

Tem

pera

ture

3. The response is slow in reaching theset point.

Time

Tem

pera

ture


26

Characteristics of the Controlled ObjectBefore selecting the Temperature Controller and Temperature Sensor models, it is necessary to understand the thermal characteristics of thecontrolled object for proper temperature control.

Characteristics ofcontrolled object

Heat capacity

Staticcharacteristics

Dynamiccharacteristics

Externaldisturbances

Heat capacity, which indicates the degree of ease ofheating, varies with the capacity of the furnace.

Static characteristics, which indicate the capability ofheating, vary with the capacity of the heater.

Dynamic characteristics, which indicate the startupcharacteristics (i.e., excessive response) of heating, varywith the capacities of the heater and furnace that affecteach other in a complex way.

External disturbances are causes of temperaturechange. For example, the opening or closing of the doorof a constant temperature oven will be a cause ofexternal disturbance thus creating a temperaturechange.

ON/OFF Control ActionAs shown in the graph below, if the processvalue is lower than the set point, the outputwill be turned ON and power will be suppliedto the heater. If the process value is higherthan the set point, the output will be turnedOFF with power to the heater shut off. Thiscontrol method is called ON/OFF controlaction, in which the output is turned ON andOFF on the basis of the set point to keep thetemperature constant. In this operation, thetemperature is controlled with two values(i.e., 0% and 100% of the set point). There-fore, the operation is also called two-positioncontrol action.

Characteristics ofON/OFF control action

Setpoint

Heater

Hysteresis

Time

P ActionP action (or proportional control action) isused for obtaining the output in proportion tothe input.

The Temperature Controller in P action has aproportional band with the set point in theproportional band. The control output variesin proportion to the deviation in the propor-tional band. In normal operation, a 100%control output will be ON if the process valueis lower than the proportional band. The con-trol output will be decreased gradually in pro-portion to the deviation if the process value iswithin the proportional band, and a 50% con-trol output will be ON if the set point coincideswith the process value (i.e., there is no devi-ation). This means P action ensures smoothcontrol with minimal hunting compared withthe ON/OFF control action.

Proportionalcontrol action

Setpoint

Proportional band

Temperature

Con

trol

out

put

Example:

If a Temperature Controller with a tempera-ture range of 0° to 400°C has a 5% propor-tional band, the width of the proportionalband will be converted into a temperaturerange of 20°C. In this case, provided that theset point is 100°C, a full output is kept turnedON until the process value reaches 90°C,and the output is OFF periodically when theprocess value exceeds 90°C. When the pro-cess value is 100°C, there will be no differ-ence in time between the ON period and theOFF period (i.e., the output is turned ON andOFF with the same interval).

Con

trol

out

put

Setpoint

A narrow proportionalband is set.

A wide proportionalband is set.

Set point

A narrow proportionalband is set.

Time

Offset

A wide proportionalband is set.


27

I ActionI action (or integral control action) is used forobtaining the output in proportion to the timeintegral value of the input.

P action causes an offset. Therefore, if pro-portional control action and integral controlaction are used in combination, the offset willbe reduced as the time goes by until finallythe control temperature will coincide with theset point and the offset will cease to exist.

Time

Offset

Offset ceasesto exist.

PI (proportionaland integralcontrol) action

P (proportionalcontrol) actiononly

Set

poi

nt

Con

trol

out

put

Setpoint

A long integral time is set.

A short integral time is set.

Time

Time

A short integral time is set.

A long integral time is set.

D ActionD action (or derivative control action) is usedfor obtaining the output in proportion to thetime derivative value of the input.

Proportional control action corrects the resultof control and so does integral control action.Therefore, proportional control action and in-tegral control action respond slowly to tem-perature change, which is why derivativecontrol action is required. Derivative controlaction corrects the result of control by addingthe control output in proportion to the slope oftemperature change. A large quantity of con-trol output is added for a radical external dis-turbance so that the temperature can bequickly in control.

Con

trol

out

put

Externaldisturbance

PD (proportionaland derivativecontrol) action

Time

Time

A long derivative time is set.

A short derivative time is set.

Set

poi

nt

P (proportionalcontrol) actiononly

A long derivative time is set.

A short derivative time is set.

Time

Setpoint

PID ControlPID control is a combination of proportional,integral, and derivative control actions, inwhich the temperature is controlled smoothlyby proportional control action without hunt-ing, automatic offset adjustment is made byintegral control action, and quick response toan external disturbance is made possible byderivative control action.

PID control


28

2-PID ControlConventional PID control uses a single con-trol block to control the responses of the Tem-perature Controller to a target value and ex-ternal disturbances. Therefore, the responseto the target value will oscillate due to over-shooting if importance is attached to the re-sponse to external disturbances with the Pand I parameters set to small values and theD parameter set to a large value in the controlblock. On the other hand, if importance is at-tached to the response to the target value(i.e., the P and I parameters are set to largevalues), the Temperature Controller will notbe able to respond to external disturbancesquickly. It will be impossible to satisfy both thetypes of responses in this case.2-PID control eliminates this weakness whileretaining the strengths of PID control, thusmaking it possible to improve both types ofresponses.

PID Control

Response to the target value will becomeslow if response to the external disturbanceis improved.

Response to the external disturbance willbecome slow if response to the target value isimproved.

2-PID Control

Response totarget value

Response toexternal disturbance

Controls both the target value response andexternal disturbance response.

PID with Fuzzy ControlBy adding fuzzy control to PID control, furtherimprovement in response to external distur-bances is possible. PID and fuzzy controlusually operate as PID control. If there is ex-ternal disturbance, fuzzy control will operatein combination with PID control.

OMRON’s fuzzy control estimates tempera-ture change from the difference between thedeviation (i.e., the difference between the setpoint and process value) and deviationchange rate, and then makes the delicate ad-justment of the control output.

Setpoint

PID control

Externaldisturbance

PID and fuzzy control

An increase in output. Suppresses theoutput to eliminateovershooting.

Control on the basis of the deviation and deviation change rate.

Response to the target value.

PID control

Response to external disturbance

PID and fuzzy control

Glossary

29

ControlHysteresisON/OFF control action turns the output ONor OFF on the basis of the set point. Thismeans the output frequently changes ac-cording to minute temperature changes,which shortens the life of the output relay orunfavorably affects some devices connectedto the Temperature Controller. Therefore, amargin is prepared between the ON and OFFoperations. This margin is called hysteresis.

HysteresisD: Hysteresis

Temperature

Con

trol

out

put

Example:

If the Temperature Controller with a tempera-ture range of 0°C to 400°C has a 0.2% hys-teresis, D will be 0.8°C. Therefore if the setpoint is 100°C, the output will turn OFF at aprocess value of 100°C and will turn ON at aprocess value of 99.2°C.

OffsetProportional control action causes an error inthe process value due to the heat capacity ofthe controlled object and the capacity of theheater, which results in a small discrepancybetween the process value and set point instable operation. This error is called offset.Offset may exist above or below the set point.

Offset Proportional band

OffsetSet

poi

nt

Hunting and OvershootingON/OFF control action often involves the wa-veform shown in the following graph. A tem-perature rise in excess of the set point aftertemperature control starts is called over-shooting. Temperature oscillation near theset point is called hunting. Improved temper-ature control is to be expected if the degreesof overshooting and hunting are low.

Hunting and Overshooting in ON/OFFControl Action

Overshooting

Hunting

Set

poi

nt

Control Cycle andTime-proportioning ControlActionThe control output will be turned ON intermit-tently according to a preset cycle if P action isused with a relay or SSR. This preset cycle iscalled control cycle and this control method iscalled time-proportioning control action.

Temperature

Set

poi

nt

Proportionalband

Actualtemperature

The higher the temperature is,the shorter the ON period is.

T: Control cycle

Control output =TON

TON + TOFFx 100 (%)

TON: ON periodTOFF: OFF period

Example;If the control cycle is 10 s with an 80% controloutput, the ON and OFF periods will be thefollowing values.TON: 8 sTOFF: 2 s

Derivative TimeDerivative time is the period required for aramp-type deviation in derivative control(e.g., the deviation shown in the followinggraph) to coincide with the control output inproportional control action. The longer thederivative time is, the stronger the derivativecontrol action is.

PD Action and Derivative Time

Dev

iatio

nC

ontr

ol o

utpu

t

PD action (with a short derivative time)

PD action (with a long derivativetime)

P actionD2 action

D1 actionTD:Derivativetime

(with a shortderivative time)

(with a long derivative time)

Glossary

30

ARW FunctionARW stands for anti-reset windup.There is usually a large deviation (i.e., a largedifference between the process value andset point) when the Temperature Controllerstarts operating. Integral control action in PIDcontrol is repeated until the temperaturereaches the set point. As a result, an exces-sive integral output causing overshooting isoutput. To prevent this, the ARW functionsets a limit to restrict the output rise in integralcontrol action. In normal control operation,the integral output is eliminated until the pro-cess value reaches the proportional band.

Set

poi

nt

Proportional band

Overshooting due toexcessive integral output.

Deviation

Time

Time

Inte

gral

out

put

Initial integral output withARW function disabled.

Initial integraloutput with ARWfunction enabled.

Temperature ordeviation

Integral TimeIntegral time is the period required for a step-type deviation in integral control (e.g., thedeviation shown in the following graph) tocoincide with the control output in proportion-al control action. The shorter the integral timeis, the stronger the integral control action is. Ifthe integral time is too short, however, hunt-ing may result.

PI Action and Integral Time

Dev

iatio

nC

ontr

ol o

utpu

t

PI action (with a short integral time)

PI action (with a long integral time)

P action

(with a short integral time)

(with a long integral time)

T1: Integraltime

Auto-tuningPID constants for temperature control vary invalue and combination according to the char-acteristics of the controlled object. There hasbeen a variety of conventional methods sug-gested and implemented to obtain PIDconstants from the waveforms of tempera-tures to be controlled by the TemperatureController in actual operation. Among them,auto-tuning methods make it possible to ob-tain PID constants suitable to a variety of ob-jects. Auto-tuning methods include the stepresponse, marginal sensitivity, and limit cyclemethods.

Step Response MethodThe value most frequently used must be theset point in this method. Calculate the maxi-mum temperature ramp R and the dead timeL from a 100% step-type control output. Thenobtain the PID constants from R and L.

Set

poi

nt

Time

Marginal Sensitivity MethodProportional control action starts from thestart point A in this method. Narrow the widthof the proportional band until the temperaturestarts to oscillate. Then obtain the PIDconstants from the value of the proportionalband and the oscillation cycle T at that time.

Set

poi

nt

Time

Marginal sensitivitymethod

Limit Cycle MethodON/OFF control action starts from the startpoint A in this method. Then obtain the PIDconstants from the hunting cycle T and os-cillation D.

Set

poi

nt

Time

Oscillation

Hunting cycle

Glossary

31

Readjustment of PID ConstantsPID constants calculated in auto-tuning op-eration normally do not cause problems ex-cept for some particular applications, inwhich case, refer to the following to readjustthe PID constants.

Response to Change in ProportionalBand

Wider

Setpoint

It is possible to suppress overshooting al-though a comparatively long startup time andset time will be required.

Narrower

Setpoint

The process value reaches the set point with-in a comparatively short time and keeps thetemperature stable although overshootingand hunting will result until the temperaturebecomes stable.

Response to Change in Integral Time

WiderSetpoint

It is possible to reduce hunting, overshoot-ing, and undershooting although a compara-tively long startup time and set time will be re-quired.

Narrower

Setpoint

The process temperature reaches the setpoint within a comparatively short time al-though overshooting, undershooting, andhunting will result.

Response to Change in Derivative Time

Wider

Setpoint

The process value reaches the set point with-in a comparatively short time with compara-tively small amounts of overshooting and un-dershooting although fine-cycle hunting willresult due to the change in process value.

Narrower

Setpoint

It will take a comparatively long time for theprocess value to reach the set point withheavy overshooting and undershooting.

Fuzzy Self-tuningPID constants must be determined accord-ing to the controlled object for proper temper-ature control. The conventional TemperatureController incorporates an auto-tuning func-tion to calculate PID constants, in whichcase, it will be necessary to give instructionsto the Temperature Controller to trigger theauto-tuning function. Furthermore, if the limitcycle method is adopted, temperature distur-bance may result. The Temperature Control-ler in fuzzy self-tuning operation determinesthe start of tuning and ensures smooth tuningwithout disturbing temperature control. Inother words, the fuzzy self-tuning functionmakes it possible to adjust PID constants ac-cording to the characteristics of the con-trolled object.

Fuzzy Self-tuning in 3 Modes• PID constants are calculated by tuning at

the time of change in the set point.

• When an external disturbance affects theprocess value, the PID constants will beadjusted and kept in a specified range.

• If hunting results, the PID constants willbe adjusted to suppress the hunting.

Auto-tuning Method of a ConventionalTemperature ControllerAuto-tuning Function: Automaticallycalculates the appropriate PID constantfor controlling objects.Features:1. Tuning will be performed when the

AT instruction is given.2. The limit cycle signal is generated to

oscillate the temperature beforetuning.

Targetvalue

ATinstruction

AT starts.Temperatureoscillated.

PID gaincalculated.

Self-tuning FunctionSelf-tuning (ST) Function: A function toautomatically calculate optimum PIDconstants for controlled objects.Features:1. Whether to perform tuning or not is

determined by the TemperatureController.

2. No signal disturbing the processvalue is generated.

Targetvalue

ST starts.

PID gaincalculated.

Temperaturein control

Temperaturein control

Externaldisturbance 1

Externaldisturbance 2

Glossary

32

Self-tuning Function(Applicable Model: E5CS)The self-tuning function is incorporated byE5CS Digital Temperature Controller. Thefunction makes it possible to calculate anduse an optimum proportional band automati-cally according to change in the temperature.

Set

poi

nt

TimeIn self-tuningoperation

Fine-tuning Function(Applicable Models: ES100X, ES100P)The fine-tuning function is incorporated bythe ES100 Digital Controller. Tuning is a deli-cate and troublesome job. The fine-tuningfunction performs fuzzy logic calculations toadjust the PID constants after the degrees ofrequirements for suppressing overshootingand hunting and improvements in responseare set.

Setting of Fine-tuning RequirementsOvershooting

Quick response Hunting

PID Control and Tuning Methods

Model Type of PID control

PID 2-PID PID with fuzzy control

E5�N AT, ST

E5�K AT, ST

E5CS ST*

E5ZD AT AT

E5ZE AT

ES100X AT, FT

ES100P AT. FT

Note: ST stands for fuzzy self-tuning function, ST* stands for self-tuning function, FT stands for fine-tuning function, and AT stands for auto-tuning function.

Control Output

Controloutput

ON/OFF output

Linear output

Contact relay output used for control methods withcomparatively low switching frequencies.

Non-contact solid-state relay output for switching 1 Amaximum.

Relay output

SSR output

ON/OFF pulse output at 5, 12, or 24 VDC externallyconnected to a high-capacity SSR.Voltage output

Continuous 4- to 20-mA or 0- to 20-mA DC outputused for driving power controllers and electromagneticvalves. Ideal for high-precision control.

Current output

Continuous 0 to 5 or 0 to 10 VDC output used fordriving pressure controllers. Ideal for high-precisioncontrol.

Voltage output

Glossary

33

Connection Example of Temperature Controller and SSR

Electronic Temperature Controller

Voltageoutputterminalsfor drivingSSR

Directly connectable

Load

HeaterLoad power supply

Temperature Controller at 12-VDCOutput with 40 mA

E5�K(Excluding E5CK)ES100 Series

Temperature Controller at 12-VDCOutput with 20 mA

E5CNE5GN

E5CS

E5AN/E5EN

E5CN-U

E5CK

E5ZN

Note: The number of SSRs that can be con-nected in parallel can be obtained as follows:Number of SSRs connectable=A � BA: Maximum load current at the voltage out-put (for driving SSRs) of each TemperatureControllerB: Input impedance of SSRs

Number of SSRsconnectable inparallel

G3PB (Single-phase)

Rated input voltage:12 to 24 VDC

Subminiature, slim model with amono-block construction andbuilt-in radiator

G3NH75A or 150 A at 440 VAC

5 to 24 VDC

Ideal for high-powerheater control

G3NA at 240-V output with 5 A, 10 A, 20 A,or 40 A at 240 VAC,10 A, 20 A, or 40 A at 480 VAC

5 to 24 VDCStandard model with screwterminals

G3NE5A, 10A, or 20 A at 240 VAC

12 VDC

Compact, low-cost modelwith tab terminals

15 A, 25 A, 35 A, or 45 A at 240 VAC

G3PB (Three-phase)

12 to 24 VDCThree-phase control with amono-block construction andbuilt-in radiator

15 A, 25 A, 35 A, or 45 A at 240/400 VAC

G3PA

5 to 24 VDCMiniature, slim model with amono-block construction andbuilt-in radiator

10 A, 20 A, 40 A, or 60 A at 240 VAC20 A or 30 A at 400 VAC

G3PC (Built-in Failure Detection Function)

Rated input voltage:12 to 24 VDC

Miniature, slim model with amono-block construction andbuilt-in radiator

* 4 Units for400 VACmodels.

5

5

3

3

5

3

5

3

5

3

2

1

8

4

20 A at 240 VAC

Glossary

34

AlarmAlarmThe Temperature Controller compares theprocess value and the preset alarm value,turns the alarm signal ON, and displays thetype of alarm in the preset operation mode.

Deviation AlarmThe deviation alarm turns ON according tothe deviation from the set point in the Tem-perature Controller.

Setting ExampleAlarm temperature is set to 110°C.

Alarm setpoint: 10 °C

Set point (SV):100°C

Alarm value:110°C

The alarm set point in the above example isset to 10°C.

Absolute-value AlarmThe absolute-value alarm turns ON accord-ing to the alarm temperature regardless ofthe set point in the Temperature Controller.

Setting exampleAlarm temperature is set to 110°C.

Alarm set point

Set point (SV):100°C

Alarm value:110°C

The alarm set point in the above example isset to 110°C.

Proportional AlarmThe proportional alarm enables simple heat-ing and cooling control, in which the controloutput of the Temperature Controller is usedfor heating and the alarm output is used ascooling control output. The 0% control outputis turned ON with the alarm value and the100% control output is turned ON with theproportional upper limit, between which thecontrol output changes linearly.

Alarm setpoint

Set point (SV) Alarm value

Changes linearly

Standby Sequence AlarmIt may be difficult to keep the process valueoutside the specified alarm range in somecases (e.g., when starting up the Tempera-ture Controller) and as a result the alarmturns ON abruptly. This can be preventedwith the standby sequential function of theTemperature Controller. This function makesit possible to ignore the process value rightafter the Temperature Controller is turned onor right after the Temperature Controllerstarts temperature control. In this case, thealarm will turn ON if the process value entersthe alarm range after the process value hasbeen once stabilized.

Example of Alarm Output with StandbySequence SetTemperature Rise

Upper-limitalarm set

Set point

Lower-limitalarm set

Alarmoutput

Temperature Drop

Upper limitalarm set

Set point

Lower limitalarm set

Alarmoutput

Heater Burnout Alarm(Single-phase Use Only)Many types of heaters are used to raise thetemperature of the controlled object. The CT(Current Transformer) is used by the Tem-perature Controller to detect the heater cur-rent. If power interruption is caused by heaterburnout, the Temperature Controller willdetect the heater burnout from the CT andwill output the heater burnout alarm.

Heater burnout alarm

Cur

rent

val

ue

Heater burnout

Heater current waveform(CT waveform)

CurrentTrans-former(CT)

The wires connected to theTemperature Controller has no polarity.

Heater

Control output

Switch

Alarm LatchApplicable Models: E5�N

An alarm will usually turn OFF if the processvalue is not within the specified alarm range.The latch alarm function makes it possible tokeep the alarm output turned ON once thealarm is triggered.

Upper-limitalarm set

Set point

Alarmoutput

LBAApplicable Models: E5�K

The LBA (loop burnout alarm) is a function toturn the alarm signal ON by assuming the oc-currence of control loop failure if there is noinput change with the control output set to thehighest or lowest value. Therefore, this func-tion can be used to detect control loop errors.

Glossary

35

Temperature SensorCold Junction CompensatingCircuitThe thermocouple generates a thermo-elec-tromotive force according to the difference intemperature between the hot junction andcold junction. The temperature sensor datawill change if there is any change in the tem-perature of the cold junction regardless ofwhether there is any change in the tempera-ture of the hot junction. Therefore, anothertemperature sensor is employed to detectthe temperature of the cold junction con-nected to the thermocouple and make anelectrical compensation so that the tempera-ture of the cold junction will be always 0°C.This compensation is called cold junctioncompensation.

Sensingpoint350°C

Terminal


Cold junctioncompensating circuit

The thermo-electromotive force VT is calcu-lated from the following formula:VT = K (350 – 20)

Condition: The terminal temperature is 20°C.VT = K (350 – 20) + K � 20 = K � 350

Thermo-electromotiveforce of thermocouple

Thermo-electromotive forcegenerated by cold junctioncompensating circuit

Compensating ConductorAn actual application has a sensing point thatmay be located far away from the Tempera-ture Controller. Special-conductor thermo-couples are expensive. Therefore, the com-pensating conductor is connected to the ther-mocouple in such a case. The compensatingconductor must be in conformity with thecharacteristics of the thermocouple, other-wise precise temperature sensing will not bepossible.

Connectionterminal

Compensatingconductor

Terminal


Example of Compensating ConductorUse

K (350 – 30) + K (30 – 20) +K � 20 + K �350

Thermo-electromotiveforce of thermocouple

Thermo-electromotiveforce generated bycold junctioncompensating circuit

Thermo-electromotive forcethrough compensatingconductor

Three-wire ResistanceThermometerThe three-wire platinum resistance ther-mometer is used by OMRON’s TemperatureController. One of the resistance conductorsof the three-wire resistance thermometer isconnected to two wires and the other resis-tance conductor is connected to anotherwire, the wiring of which eliminates the influ-ence of the resistance of the extended leadwires.

Connection of Three-wire PlatinumResistance Thermometer

Platinum resistance thermometer


Input CompensationA preset point is added to or subtracted fromthe temperature detected by the temperaturesensor of the Temperature Controller to dis-play the process value. The difference be-tween the detected temperature and dis-played temperature is set as an input com-pensation value.

Furnace

Input compensation value: 10°C(Displayed value is 120°C) (120 – 110 = 10)

Platinum ResistanceThermometerThe resistance of a metal will increase if thetemperature of the metal increases. This isespecially true if the metal is platinum. Theplatinum resistance thermometer makes useof the nature of platinum (e.g., its resistanceincreases with the temperature rise) by incor-porating a fine platinum wire wound around amica or ceramic plate.

ThermocoupleA thermocouple consists of two different met-al wires with the ends connected together. Ifthe two contacts are different in temperature,the thermocouple will generate a voltagecalled thermo-electromotive force. The pow-er of thermo-electromotive force depends onthe metals. The temperature sensor makinguse of this voltage as input to the Tempera-ture Controller is called a thermocouple.

Hot Junction and Cold JunctionA thermocouple has hot junction and coldjunction. The hot junction is for temperaturesensing and the cold junction is connected tothe Temperature Controller.

Hotjunction

Metal A

Metal B

Cold(reference)junction(0°C)

Glossary

36

OutputReverse OperationThe Temperature Controller in reverse op-eration will increase control output if the pro-cess value is lower than the set point (i.e., ifthe Temperature Controller has a negativedeviation).

Low HighSet point

Con

trol

out

put (

%)

Direct OperationThe Temperature Controller in normal opera-tion will increase control output if the processvalue is higher than the set point (i.e., if theTemperature Controller has a positive devi-ation).

Low HighSet point

Con

trol

out

put (

%)

Heating and Cooling ControlThe controlled object may be in heating andcooling control if the temperature control ofthe controlled object is difficult with heatingalone. A single Temperature Controller hasheating control output and cooling controloutput.

TemperatureController inheating andcoolingcontrol

Heating

CoolingControlledobject

Heating and Cooling Outputs

Heatingoutput

Coolingoutput

Set point

Heatingoutput

Coolingoutput

Set point

Position-proportioning ControlThis control is also called ON/OFF servocontrol. If a valve with a control motor is ap-plied to temperature control with the Temper-ature Controller and a potentiometer, theTemperature Controller will read the valveopening from the potentiometer and will turnthe open and close signals ON along withcontrol output for temperature control.

Tempera-ture Con-troller inposition-proportion-ing control.

Open

Close

Controlledobject

Potentiometerreading valveopening.

Transfer OutputThe Temperature Controller with current out-put independent from control output is avail-able. The process value or set point withinthe available temperature range of the Tem-perature Controller is converted into 4- to20-mA linear output that can be input into re-corders to keep the results of temperaturecontrol on record. The upper and lower limitscan be set for transfer output in the E5CKwith transfer output board. Therefore, thetransmission output between the upper andlower limits will be turned ON if the E5CK withtransfer output board is used.

TemperatureController withtransfer output

Recorder

Temperature sensor

Tran

smis

sion

out

put

Lower limit Upper limitProcess value

Possible setting range

Glossary

37

SettingSet LimitThe set point range depends on the tempera-ture sensor and the set limit is used to restrictthe set point range. This restriction affectsthe transmission output of the TemperatureController.

Possible setting range

Shift Set OperationThe set point can be shifted to a different val-ue to be used by the Temperature Controllerin shift set operation.

Set temperature: 200°CShift set point: –50°C

Set point:–150°C

Shift set operation

Multiple Set PointsTwo or more set points independent fromeach other can be set in the TemperatureController in control operation.

8 BanksThe Temperature Controller stores a maxi-mum of eight groups of data (e.g., set valueand PID constant data) in built-in memorybanks for temperature control. The Tempera-ture Controller selects one of these banks inactual control operation.

Memory Bank 0

Bank 1

Bank 7

Set valueP constantI constantD constant:::

Bank 1 is selected.

Temperaturecontrol withdata in memorybank 1.

SP RampThe SP ramp function controls the target val-ue change rate with the variation factor.Therefore, when the SP ramp function is en-abled, some range of the target value will becontrolled if the change rate exceeds thevariation factor as shown below.

Targetvalueafterchanging

Targetvaluebeforechanging

SP ramp

SP rampset value

SP ramptime unit

Changepoint

Time

Remote SP InputSPs can be set using external 4- to 20-mAinput signals. If the remote SP function isenabled, 4- to 20-mA input will be used forremote SP input.

Event InputEvent input signals are external signals usedto change SPs and select RUN/STOP pat-terns.

Input Digital FilterThe input digital filter processes input signalsaccording to the set digital filter time con-stant. The operation of the digital filter isshown below.

PV after filtering

PV before filtering

(time constant)

Input digital filter

Standards

38

Protection Degree

IP - � � �

Protection Specification Code (International Protection) (IEC529)1 2 3

1. Protection Against Solid Foreign ObjectsGrade Protection Criteria

0 No protection

150 dia. mm

Full penetration of 50-mm diameter of sphere not allowed. Contact with hazardous parts notpermitted.

212.5 dia. mm

Full penetration of 12.5-mm diameter of sphere not allowed. The jointed test linger shall haveadequate clearance from hazardous parts.

32.5 mm

The access probe of 2.5-mm diameter shall not penetrate.

41 mm

The access probe of 1.0-mm diameter shall not penetrate.

5 Dust protected Limited ingress of dust permitted (no harmful deposit).

6 Dust-tight Totally protected against ingress of dust.

Standards

39

2. Protection Against Harmful Ingress of Water (IEC Standards)Grade Protection Criteria Examination method

0 No particular protection No protection No test

1 Rain Protected against verticallyfalling drops of water.

Spray water downwards in vertical direction for 10 minutes us-ing a water-dripping test device.

200 mm

2 Rain Protected against verticallyfalling drops of water withenclosure tilted 15� fromthe vertical.

Tilt by 15� and spray water for 10 minutes (2.5 minutes in eachdirection) using a water-dripping test device.

200 mm

3 Rain Protected against sprays to60� from the vertical.

Spray water up to 60� in both directions from the vertical axisfor 10 minutes using the test device shown below.

Flow per water spray hole:0.07 l/min

4 Water splash from alldirections

Protected against watersplashed from all directions;limited ingress permitted.

Spray water from all directions for 10 minutes using the testdevice shown below.

Flow per water spray hole:0.07 l/min

5 Housing jets from alldirections

Protected againstlow-pressure jets of waterfrom all directions; limitedingress permitted.

Spray water from all directions for one minute per m2 ofexternal surface area and for a total time of no less than 3minutes using the test device shown below.

12.5 �/min2.5 to 3 m

Discharging nozzle dia.: 6.3

6 Strong hosing jets from alldirections

Protected against strongjets of water, e.g. for use onship decks; limited ingresspermitted.

Spray water from all directions for one minute per m2 ofexternal surface area and for a total time of no less than 3minutes using the test device shown below.

100 �/min2.5 to 3 m

Discharging nozzle dia.: 12.5

7 Temporary immersion (seenote 1)

Protected against theeffects of immersionbetween 15 cm and 1 m.

Submerge for 30 minutes at the depth of 1 m (if the device islocated lower than 850 mm).

8 Continuous immersion (seenote 2)

Protected against longperiods of immersion underpressure.

Test according to the conditions agreed upon between themanufacturer and user.

Standards

40

3. Protection Against Oil (by JEM (Japan Electrical Manufacturers Association Standards) Standards(JEM 1030))

Grade Protection Criteria Criteria

F Oil-proof Protected against improperoperation due to oil drops orspray from any direction.

No penetration of oil to the extent of interfering with properoperation after dropping the specified cutting oil on a test devicefor 48 hours at a rate of 0.5 � per hour.

G Oil resistant Protected againstpenetration of oil drops orspray from any direction.

No penetration of oil after dropping the specified cutting oil on atest device for 48 hours at a rate of 0.5 � per hour.

NEMA (National Electrical Manufactures Association)Conversion from NEMA to IEC529 (Reverse conversion is not possible.)

NEMA250 IEC529

1233R3S

IP10IP11IP54IP14IP54

NEMA250 IEC529

4, 4X56, 6P12, 12K13

IP56IP52IP67IP52IP54

Note: Based on the Appendix A of the NEMA Standard. Classification of the NEMA enclosure rating differs from that of the IEC529 in corro-sion resistance, rust resistance, and watertightness.

Cat. No. Y101-E1-03 Printed in Japan1002-0.5M (1297) (H)

Authorized Distributor:

In the interest of product improvement, specifications aresubject to change without notice.

OMRON CorporationIndustrial Automation Company

Measuring and Control DivisionShiokoji Horikawa, Shimogyo-ku,Kyoto, 600-8530 JapanTel: (81)75-344-7080/Fax: (81)75-344-7189

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