OMRON E5AX-P Technical data

Temperature Controller

A 96 x 96 mm (DIN) Controller for Control Valves

Controls motor valves without a potentiometer.

Optimum PID control with feed-forward control circuitry.

High precision regardless of the set temperature.

Compatible with various inputs (input selected via internal switch).

Models with communications capabilities also available.

Ordering Information

Electronic Temperature Controller

Communications

None RS-232C RS-422* RS-485* BCD Transmission

output*/**

(4 to 20 mA)

E5AX-P

Communications

Board Add-on Type

Model E5AX-PRR E5AX-PRR01 E5AX-PRR02 E5AX-PRR03 E5AX-PRR20 E5AX-PRRF E5AX-PRRM

*The Controller can also be equipped with a terminal block to connect communications. Specify a terminal block by adding “-X” to the model

number. Example: E5AX-PRR02-X

**Capable of transmitting the process value or output value, but remote setting by external input is not possible.

Temperature Ranges

Input (switch

selectable)

Chromel vs.

alumel

Range %C –200 to 1,300 –100 to 850 –200 to 400 0 to 600 0 to 1,700 0 to 1,700 –99.9 to 450.0

%F –300 to 2,300 –100 to 1,500 –300 to 700 0 to 1,100 0 to 3,000 0 to 3,000 –99.9 to 800.0

Resolution (%C/%F) (main settings and alarm)

1 0.1

J/L

Iron vs.

constantan

Thermocouple Temperature

T/U

Copper vs.

constantan

Chromel

vs.

constantan

Platinum vs.

platinum

13% rhodium

Platinum vs.

platinum 10%

rhodium

resistance

thermometer

PT platinum

resistance

thermometer

(Pt100/JPt100)

Communications Boards

Communications RS-232C RS-422 RS-485 BCD Transmission output

Model E53-X01 E53-X02 E53-X03 E53-X20 E53-XF

(4 to 20 mA)

E5AX-P

Specifications

Ratings

Supply voltage 100 to 240 VAC, 50/60 Hz (either frequency applicable with same unit)

Operating voltage range 85% to 110% of rated supply voltage

Power consumption Approx. 10 VA (at 100 VAC) to 15 VA (at 240 VAC)

Input Thermocouple (K/J/T/E/R/S/L/U) or platinum resistance thermometer (Pt100/JPt100)

Potentiometer input 100 W to 2.5 kW

Control output Relay output: open, close; SPST-NO contacts; 3 A, 250 VAC (resistive load); inrush current: 1

Control mode PID control with auto-tuning

Alarm output Relay output, SPST-NO contacts; 3 A, 250 VAC (resistive load)

Setting method Digital setting via Up and Down Keys

Indication method Digital indications (character heights PV: 15 mm and SV: 11 mm) (Color PV: red, SV: green)

Other functions Upper and lower limits for set value

Approx. 12 VA (at 100 VAC) to 15 VA (at 240 VAC) with communication function

selectable

A max.

Key protection Input shift Display unit selection (%C/%F) Normal and reverse output selection Valve position display Motor calibration function Watchdog timer function (Detects failures in the CPU and restores the CPU.) Manual output (balanceless-bumpless operation switchable)

Communications

Protocol RS-232C, RS-422, RS-485 BCD Transmission output

Transmission method Half-duplex Data select code 4 to 20 mA DC

Synchronization method Start-stop synchronization --- ---

Baud rate 150/300/600/1,200/2,400/4,800/9,600 bps

Transmission code ASCII (7-bit)

Communications Write to

Temperature Controller

Read from Temperature Controller

Note: 1. The maximum total cable length must not exceed the following limits.

RS-422: 500 m; RS-232C: 15 m; RS-485: 500 m

2. A maximum of 32 Temperature Controllers can be connected to one host computer using serial communications (RS-422, RS-485).

3. Outputs the temperature data within the set limits.

Main setting, set alarm value, proportional band, integral time, derivative time, AT start/stop etc.

Main setting, set alarm value, proportional band, integral time, derivative time, set limit value, process value, valve position, error codes, etc.

Main setting, set alarm value

Main setting, set alarm value, process value, error codes, etc.

Load: 600 W max. Resolution: Approx. 3,200

Write disabled

Process value (see note 3), valve position

E5AX-P

Characteristics

Setting accuracy (+0.3% of set value or +1%C, whichever greater), +1 digit max.

Indication accuracy (+0.3% of set value or +1%C, whichever greater), +1 digit max. (Set value coincides with the

Disable band 0.1% to 10.0% (in units of 0.1%)

Proportional band 0.1% to 999.9 %C/%F (in units of 0.1%C/%F)

Integral time 1 to 3,999 s (in units of 1 s)

Derivative time 0 to 3,999 s (in units of 1 s)

Alarm output setting range Thermocouple: –999% to 9,999%C/%F (in units of 1%C/%F)

Alarm output hysteresis 0.0% to 999.9 %C/%F (in units of 0.1%C/%F)

Sampling period 500 ms (temperature sensor input)

Output refresh period 500 ms

Display refresh period 500 ms (temperature sensor input)

Valve travel indication –99% to 999% (in units of 1%)

Full Open/close time 1 to 999 s ( in units of 1 s)

Input shift Thermocouple: –999% to 9,999%C/%F (in units of 1%C/%F)

Insulation resistance 20 MW min. (at 500 VDC)

Dielectric strength 2,000 VAC 50/60 Hz for 1 min between terminals of different polarities

Vibration resistance Malfunction: 2 to 55 Hz, 2G 10 min each in X, Y, and Z directions

Shock resistance Malfunction: 200 m/s2 3 times each in 6 directions

Life expectancy Mechanical: 10,000,000 operations min.

Ambient temperature Operating: –10% to 55%C (with no icing)

Ambient humidity Operating: 35% to 85%

Memory protection Non-volatile memory

Enclosure ratings Front panel: IEC standard IP50

Weight Standard: Approx. 350 g; Communications: Approx. 480 g; Mounting bracket: Approx. 50 g

*The accuracy of U thermocouples under temperatures from –150% to 400%C (–240% to 700%F) is +2%C (+3.6%F) +1 digit. Accuracy is reduced below –150%C (–240%F). The accuracy of R and S thermocouples under 0% to 200%C (0% to 400%F) is +3%C (+5.4%F) +1 digit.

indicated value, because no relative error exists between both values.)

Platinum resistance thermometer: –99.9% to 999.9%C/%F (in units of 0.1%C/%F)

Destruction: 10 to 55 Hz, 0.75-mm double amplitude 2 hrs each in X, Y, and Z directions

Destruction: 300 m/s

Electrical: 100,000 operations min.

Storage: –25% to 65%C (with no icing)

Rear case: IEC standard IP20 Terminals: IEC standard IP00

3 times each in 6 directions

E5AX-P

Nomenclature

Auto-tuning Indicator

Flashes on and off every second when auto-tuning is taking place.

Manual Output Mode Indicator

Lights when in manual output mode.

Open Output Indicator

Lights when the open output is ON.

Close Output Indicator

Lights when the close output is ON.

Level Key

Press for 2 seconds minimum to change levels to set different groups of parameters.

Display Key

Press to shift the display to the next parameter.

E5AX-P

Process Value (PV) Display

Displays the process value, the character for parameter being displayed on the SV display and error messages.

Set Value (SV) Display

Displays main setting and other parameters.

Alarm Indicator

Lights when the alarm output is ON.

A/M Key (Automatic/Manual)

Press for 1 second minimum to switch between auto output mode and manual output mode.

Up Key

Press to increase the main setting or other parameters. Successively increases the value when held down.

Front Cover

Down Key

Press to decrease the main setting or other parameters. Successively decreases the value when held down.

Operation

NOTICE: Always turn off the power supply to the Electronic Temperature Controller before changing any switch settings.

Settings

1. Remove the internal mechanism from the housing. Lift the internal mechanism while pressing the hook at the bottom of the front panel.

Hook

Pull out the internal mechanism while holding down the hook with your finger.

2. Four internal switches must be set on the E5AX: the temperature sensor selector, the operating mode selector, and the alarm mode selectors 1 and 2.

The figures show the locations of these switches and the protection switches on the internal mechanisms. The protection switch can be used to disable key operation.

Protection switch (SW101, PROTECT)

Alarm mode selector (SW205, ALM)

Operating mode selector (SW 201, FUNCTION)

Temperature sensor selector (SW206, INPUT)

Temperature Sensor Selector (SW206,

INPUT)

This selector selects the temperature sensor to be used. It is factory-set to position 2 to designate a K-type (chromel-alumel thermocouple) temperature sensor. The following table lists the other pos-

E5AX-P

sible settings for temperature sensors. Refer to temperature range charts under Ordering Information for further information.

The scale displayed (%C or %F) is selected by the operating mode selector (SW201).

Switch setting

0 R 0 to 1,700 0 to 3,000

1 S 0 to 1,700 0 to 3,000

2 K –200 to 1,300 –300 to 2,300

3 J –100 to 850 –100 to 1,500

4 T –200 to 400 –300 to 700

5 E 0 to 600 0 to 1,100

6 JPt100 –99.9 to 450.0 –99.9 to 800.0

7 Pt100 –99.9 to 450.0 –99.9 to 800.0

8 L –100 to 850 –100 to 1,500

9 U –200 to 400 –300 to 700

Temperature sensor code

Temperature range

%C %F

Operating Mode Selector (SW201,

FUNCTION)

This DIP switch selects the operation modes listed in the following table.

Function

Not used.* 1 Leave turned OFF.

Control output 2 ON Normal (cooling)

Input shift 3 ON Enabled

SP (set point)** 4 ON Enabled

protection cancel OFF Disabled

Display unit 5 ON %F

PID display 6 ON Enabled

*Always operate with pin 1 OFF. Operating with pin 1 ON could result in malfunction.

**SP protection cancel is effective only when SW101 (key protection) is on. If the SP protection cancel is ON, key protection (SW101 ON) will not apply to the set point, i.e., you will be able to change the set point regardless of the setting of SW101.

number

setting

OFF Reverse (heating)

OFF Disabled

OFF %C

OFF Disabled

Control setting

Alarm Mode Selector (SW205: ALM)

Alarm mode selector is provided on all E5AX Temperature Controllers. Alarm modes, listed in the following table, can be selected using this switch. The switch is factory-set to position 2, i.e., the upper-limit alarm mode.

Switch

setting Alarm operation Display When X is positive When X is negative

0 No alarm No display OFF ---

1 Upper- and lower-limit

alarm

2 Upper-limit alarm

3 Lower-limit alarm

4 Upper- and lower-limit

range alarm

5 Upper- and lower-limit

alarm with standby sequence

6 Upper-limit alarm with

standby sequence

7 Lower-limit alarm with

standby sequence

8 Absolute-value alarm

Mode (SW205) Alarm output Setting range

)––(

–––(

)–––

–()–

3––e

–––e

3–––

1––(

X X

--- Thermocouple: 0% to

---

9,999%C/%F Platinum resistance thermometer: 0% to 999.9%C/%F

Thermocouple: –999% to 9,999%C/%F

Platinum resistance thermometer: –99.9% to 999.9%C/%F

Thermocouple: 0% to 9,999%C/%F

Platinum resistance thermometer: 0% to 999.9%C/%F

Thermocouple: –999% to 9,999%C/%F

Platinum resistance thermometer: –99.9% to 999.9%C/%F

0%C

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