Omron E5AX-BA Series User manual

1
Temperature Controller E5AX-BA/BAH
E5EX-BA/A02/A03
Compact 96 x 48-mm (DIN) Temperature
Controller with Communication
Capabilities and 8 Memory Banks
Advanced PID control with feed-forward circuitry
(2-PID) for optimum control.
Eight memory banks for easy parameter changes.
Communication capabilities for centralized data
management.
Interchangeable Output Units to expand Controller
applicability.
Input sensor selectable via internal switches.
Available with heater burnout detection.
Ordering Information
An Output Unit must be connected to all Controllers.
An Output Unit and Current T
ransformer must also be connected to Controllers with a heater burnout alarm.
Current Output Units and Current T ransformer are sold separately .
Current Output Units cannot be used to control the outputs of E5EX models that incorporate a heater burnout alarm.
Be sure to specify Output Unit and Current T ransformer as necessary when ordering.
Example: E5EX-BA TC, Relay Output Unit E53-R, Current T ransformer E54-CT1
Temperature Controllers
Thermocouple
Item 8 banks Communications
W ithout heater W ith heater RS-422 RS-485
burnout alarm burnout alarm W ithout heater
burnout alarm
W ith heater
burnout alarm
W ithout heater
burnout alarm
W ith heater
burnout alarm
Model E5AX-BATC
E5EX-BATC E5AX-BAHTC E5EX-BAHTC E5EX-A02TC E5EX-AH02TC E5EX-A03TC E5EX-AH03TC
Platinum Resistance Thermometer
Item 8 banks Communications
W ithout heater W ith heater RS-422 RS-485
burnout alarm burnout alarm W ithout heater
burnout alarm
W ith heater
burnout alarm
W ithout heater
burnout alarm
W ith heater
burnout alarm
Model E5AX-BAP
E5EX-BAP E5AX-BAHP E5EX-BAHP E5EX-A02P E5EX-AH02P E5EX-A03P E5EX-AH03P
Current Transformers (CT)
Hole diameter 5.8 mm 12.0 mm
Model E54-CT1 E54-CT3
Note: The E54-CT2 cannot be used.

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
2
Temperature Ranges
Thermocouple
Input
(switch
selectable) R
Platinum
vs.
platinum.
rhodium
13%
S
Platinum
vs.
platinum.
rhodium
10%
K (CA)
Chromel vs.
alumel
J/L (IC)
Iron vs.
constantan
T/U (CC)
Copper vs.
constantan
E (CRC)
Chromel
vs.
constantan
B
Platinum.
rhodium
30% vs.
platinum.
rhodium 6%
N
Nichrosil
vs. nisil
Range °C 0 to 1,700 0 to 1,700 –200 to 1,300 –100 to 850 –200 to 400 0 to 600 100 to 1,800 0 to 1,300
°F 0 to 3,000 0 to 3,000 –300 to 2,300 –100 to 1,500 –300 to 700 0 to 1,100 300 to 3,200 0 to 2,300
Resolution
(°C/°F)
(main settings
and alarm)
1
Platinum Resistance Thermometer
Input (switch selectable) JPt100/Pt100
Range °C –99.9 to 450.0
°F –99.9 to 800.0
Resolution ( °C/° F) (main
settings and alarm)
0.1
Specifications
Ratings
Supply voltage 100 to 240 V AC, 50/60 Hz
Operating voltage range 85% to 1 10% of rated supply voltage
Power consumption Approx. 10 V A (at 100 V AC) to 15 V A (at 24 V AC)
Input Thermocouple (R/S/K/J/T/E/B/N/L/U) or platinum resistance thermometer (Pt100/JPt 100),
selectable
Current T ransformer input Connect an exclusive Current T ransformer unit (E54-CT1 or E54-CT3).
Control output See Control Output Unit Ratings (Control Output Units are sold separately .)
Control mode PID control with feed-forward circuitry (feed-forward PID) with auto-tuning or ON/OFF
Alarm output Relay output, 2 independent SPST -NO contacts; 3 A, 250 VAC (resistive load)
Heater burnout alarm output Relay output, SPST -NO; 1 A, 250 V AC (resistive load)
Setting method Digital setting via Up and Down Keys
Indication method Digital indications (character heights: PV : 1 1 mm, SV : 8 mm, BK: 8 mm) (color PV : red,
SV : green, BK: orange)
Bank selection No voltage, contact signal input; contact impedance: 100 Ω max.
Other functions Upper and lower limits for set value
Key protection
Input shift
Scale selection ( °C/°F)
Normal and reverse output selection
Bank selection
Bank copy
W atchdog timer function (Detects failures in the CPU and restores the CPU.)
Output Unit Ratings
Relay Output Unit E53-R SPDT ; 5 A, 250 V AC (resistive load)
SSR Output Unit E53-S SPST -NO; 1 A, 75 to 250 V AC; leakage current: 1.5 mA max. (at 200 V AC)
Voltage Output Unit E53-Q 40 mA max., 12 VDC; NPN (with short-circuit protection)
(for driving SSR) E53-Q3 20 mA max., 24 VDC; NPN (with short-circuit protection)
E53-Q4 20 mA max., 24 VDC; PNP (with short-circuit protection)
Current Output Unit* E53-C 4 to 20 mA, DC: 600 Ω max.; resolution: 212
*Current Output Units cannot be used to control the outputs of E5EX models that incorporate a heater burnout alarm.

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
3
Current Transformer Ratings
Max. continuous heater current 50 A
Dielectric strength 1,000 V AC (for 1 min)
V ibration resistance 50 Hz (approx. 10G)
Weight E54-CT1: Approx. 1 1.5 g; E54-CT3: Approx. 50 g
Accessories (E54-CT3 only) Contact: 2; Plug: 2
Controller Characteristics
Setting accuracy* (± 0.3% of set value or ±1° C, whichever greater) ± 1 digit max.
Indication accuracy (± 0.3% of indication value or ±1° C, whichever greater) ± 1 digit max. (Set value coincides with
the indicated value, because no relative error exists between both values.)
Hysteresis 0.0° to 999.9 °C/° F (in units of 0.1 °C/° F) (during ON/OFF control action)
Proportional band 0.0° to 999.9 °C/° F (in units of 0.1 °C/°F)
Integral (reset) time 0 to 3,999 s (in units of 1 s)
Derivative (rate) 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)
Platinum resistance thermometer: –99.9 ° to 999.9 °C/° F (in units of 0.1 °C/°F)
Control period Pulse output: 1 to 99 s (in units of 1 s)
Sampling period 500 ms
Output refresh period 500 ms
Display refresh period 500 ms
Input shift range –99.9° to 999.9 °C/° F (in units of 1 °C/°F)
Insulation resistance 20 M Ω min. (at 500 VDC) (measured with a Control Output Unit attached)
Dielectric strength 2,000 V AC, 50/60 Hz for 1 minute between terminals of dif ferent polarities (measured with a
Control Output Unit attached)
V ibration resistance Malfunction: 2 to 55 Hz, 2G 10 minutes each in X, Y , and Z directions
Destruction: 10 to 55 Hz, 0.75-mm double amplitude 2 hours each in X, Y , and Z directions
Shock resistance Malfunction: 200 m/s
2
3 times each in 6 directions
Destruction: 300 m/s
2
3 times each in 6 directions
Ambient temperature Operating: –10° to 55 ° C (with no icing)
Storage: –25° to 65 ° C (with no icing)
Ambient humidity Operating: 35% to 85%
Memory protection Non-volatile memory
Enclosure ratings Front panel: IEC standard IP50
Rear case: IEC standard IP20
Terminals: IEC standard IP00
Weight Approx. 310 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. The accuracy of the
B thermocouple below 400 ° C (750 ° F) is not guaranteed.
Output Unit Characteristics
Relay unit life expectancy Mechanical: 10,000,000 operations min.
Electrical: 100,000 operations min.

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
4
Heater Burnout Detection Characteristics
Max. heater current 50 A, single-phase
Monitor accuracy of input current ± 5% of full scale ± 1 digit max.
Heater burnout detection setting range 0.1 to 49.9 A (in units of 0.1 A)*
Heater current monitor range 0.0 to 50.0 A
Min. detectable ON time 200 ms**
*Heater burnout is not detected when current is set to 0.0 A; the burnout alarm will be automatically turned ON when current is set to 50.0 A.
**When the control output is ON for less than 200 ms, heater burnout is not detected and heater current is not measured.
Communications
Protocol RS-422 RS-485
Transmission method 4-wire, half-duplex 2-wire, half-duplex
Synchronization method Start-stop synchronization
Baud rate 150/300/600/1,200/2,400/4,800/9,600 bps
T ransmission code ASCII (7-bit)
Communications W rite to T emperature
Controller
Main setting, set alarm value, proportional band, integral time, derivative time,
Auto-tuning (A T) start/stop, heater burnout alarm set value
Read from
T emperature Controller
Main setting, set alarm value, proportional band, integral time, derivative time, process
temperature, heater burnout alarm set value, Current T
ransformer input value, etc.
Note: 1. The maximum total cable length must not exceed the following limits.
RS-422: 500 m, RS-485: 500 m
2. A maximum of 32 T emperature Controllers can be connected to one host computer using serial communications (RS-422). In the
case of the RS-485 serial communications, however, a maximum of 31 Temperature Controllers can be connected to one host
computer.
Nomenclature
E5AX-BA/BAH
Heater Burnout Indicator
Lights when a heater burnout is de-
tected and stays lit unit reset.
Bank Number Display
Displays the present bank number.
Auto-tuning Indicator
Flashes on and off every second
when auto-tuning is taking place.
Output Indicator
Lights when the control output is
ON. Turns off when the current out-
put unit is used.
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.
Down Key
Press to decrease the main setting
or other parameters. Successively
decrease the value when held
down. Front cover
Process Value (PV) Display
Displays the process value, the
character for parameter being dis-
played on the SV display
, and error
messages.
Set Value (SV) Display
Displays the main setting and other
parameters.
Alarm Indicator
Lights when alarm output is ON.
Sensor Error Indicator
Lights when sensor error is de-
tected.
Auto-tuning Key
Press for 1 second minimum to start
auto-tuning. Press for 1 second
minimum during auto-tuning to stop
auto-tuning.
UP Key
Press to increase the main setting or
other parameters. Successively in-
creases the value when held down.

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
5
E5EX-BA
Auto-tuning Indicator
Flashes on and off every second
when auto-tuning is taking place.
Bank Number Display
Displays the present
bank number.
Output Indicator
Lights when the control
output is ON. Turns off
when the current output
unit is used.
Display Key
Press to shift the display to
the next parameter.
Level Key
Press for 2 seconds minimum
to change levels to set differ-
ent groups of parameters.
Process Value (PV) Display
Displays the process value, the character for
parameter being displayed on the SV display,
and error messages.
Alarm 1 Indicator
Lights when alarm
output 1 is ON.
Set Value (SV) Display
Displays the main setting
and other parameters.
Alarm 2 Indicator
Lights when alarm output 2 is ON.
UP Key
Press to increase the main setting or
other parameters. Successively in-
creases the value when held down.
Auto-tuning Key
Press for 1 second minimum to start
auto-tuning. Press for 1 second minimum
during auto-tuning to stop auto-tuning.
Down Key
Press to decrease the main setting or
other parameters. Successively de-
crease the value when held down.
Front cover
Heater Burnout Indicator
Lights when a heater burnout is
detected and stays lit until reset.
Sensor Error Indicator
Lights when sensor error
is detected.
E5EX-BAH
E5EX-A02/-A03 E5EX-AH02/-AH03
Note: Press both the Display Key and Level Key for 1 second minimum to start auto-tuning.
Press both the Display Key and Level Key for 1 minimum during auto-tuning to stop auto-tuning.
Remote Indicator
Lights in the remote
mode. The indicator is
off in the local mode.
Remote Key
Press to communicate in
the remote mode. Press
again to set parameters
with the keys in the local
mode.

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
6
Operation
NOTICE: Always turn of f the power supply to the T emperature 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. Connect a Control Output Unit to the vacant socket on the
printed
circuit board as shown below .
Mount the Control Output Unit
with the mark facing the direction
indicated by the arrow.
Set the output selector (SW205, OUTPUT
TYPE) to PULSE when a Relay, SSR, or
Voltage Output Unit is mounted. Set the
output selector to CURRENT when a
Current Output Unit is mounted.
To remove a Control Output Unit, push it up with the tip of a flat-blade
screwdriver as shown below .
Flat-blade screwdriver
3. Six internal switches must be set on the E5EX: the function
selector, the alarm mode selectors 1 and 2, the output
selector,
terminator switch, and the input type selector .
The
figures show the locations of these switches and the pro -
tection switch on the internal mechanisms. The protection
switch
can be used to disable key operation.
Protection switch
(SW101, PROTECT)
Terminator switch
(SW206, TERMINATOR)
Output type selector
(SW205, OUTPUT TYPE)
Alarm mode selector 2
(SW204, ALM2)
Alarm mode selector 1
(SW203, ALM1)
Function selector
(SW201, FUNCTION)
Input type selector
(SW202 or 207)
Output Selector (SW204, OUTPUT)
OFF ON
PULSE CURRENT
Output Setting (factory-set to OFF)
Current ON
Pulse OFF

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
7
Input Type Selector
Thermocouple Selector (SW202, INPUT)
This selector selects the temperature sensor to be used. It is facto -
ry-set
to position 2 to designate a K-type (chromel-alumel thermo -
couple)
temperature sensor . The following table lists the other pos -
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 function selector
(SW201).
0
5
1
6
2
73
8
4
9
Switch Temperature T emperature range
setting sensor code °C°F
0R 0 to 1,700 0 to 3,000
1S 0 to 1,700 0 to 3,000
2K –200 to 1,300 –300 to 2,300
3J –100 to 850 –100 to 1,500
4T –200 to 400 –300 to 700
5E 0 to 600 0 to 1,100
6B 100 to 1,800 300 to 3,200
7N 0 to 1,300 0 to 2,300
8L –100 to 850 –100 to 1,500
9U –200 to 400 –300 to 700
Platinum Resistance Thermometer Selector
(SW207, INPUT)
This selector is factory-set to OFF to designate a JPt100-type tem -
perature sensor. The settings and applicable ranges are shown
in
the following table.
OFF ON
Switch Temperature T emperature range
setting sensor code °C°F
OFF JPt100 –99.9 to 450.0 –99.9 to 800.0
ON Pt100 –99.9 to 450.0 –99.9 to 800.0
Note: JPt100:100°C/139.16Ω
PT100: 100°C/138.50Ω

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
8
Function Selector (SW201, FUNCTION)
The DIP switch sets the operating parameters listed in the following
table. All pins are factory-set to OFF .
ON1 3456782
Controllers with Memory Banks
Function Pin
number Pin setting Setting
Control mode 1 ON ON/OFF operation
OFF Feed-forward PID
operation
Control output 2 ON Normal (cooling)
OFF Reverse (heating)
Input shift 3 ON Enabled
(see Note 2) OFF Disabled
SP (set point) 4 ON Enabled
protection cancel OFF Disabled
Scale 5 ON °F
OFF °C
PID display 6 ON Enabled
OFF Disabled
Bank No. 7 ON T erminal input
selection OFF Key input
Not used. 8 Leave turned OFF .
Note: 1. The set temperature value can be changed regardless
of the position of the key protection switch (SW101,
PROTECT)
when pin 4 is set to the ON position.
2. The input shift function will be disabled regardless of the
pin position when an input shift value of 0 is set.
Controllers with Communications Capability
Function Pin
number Pin setting Setting
Control mode 1 ON ON/OFF operation
OFF Feed-forward PID
operation
Control output 2 ON Normal (cooling)
OFF Reverse (heating)
Input shift 3 ON Enabled
OFF Disabled
SP (set point) 4 ON Enabled
protection cancel OFF Disabled
Scale 5 ON °F
OFF °C
PID display 6 ON Enabled
OFF Disabled
Not used. 7 Leave turned OFF .
Loop back test 8 ON Test
OFF Normal
Note: 1. The set temperature value can be changed regardless
of the position of the key protection switch (SW101,
PROTECT)
when pin 4 is set to the ON position.
2. The input shift function will be disabled regardless of the
pin position when an input shift value of 0 is set.

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
9
Alarm Mode Selectors (SW203: ALM1; SW204: ALM2)
Alarm mode selectors are provided on all T emperature 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 Mode Alarm output Setting range
setting Alarm operation Display When X is positive When X is negative
0 No alarm No display OFF ---
1Upper- and lower-limit
alarm )--( XX --- Thermocouple:
0 ° to 9,999 °C/°F
Platinum
resistance thermometer:
0° to 999.9 °C/°F
2 Upper-limit alarm
---( X X
Thermocouple: –999 ° to
9,999°C/°F
3 Lower-limit alarm
)--- X X
Platinum resistance thermome -
ter: –99.9 ° to 999.9 °C/°F
4Upper- and lower-limit
range
alarm
-()- XX ---
Thermocouple: 0 ° to 9,999 °C/°F
5Upper- and lower-limit
range alarm with
standby
sequence
3--e XX --- Platinum
resistance thermometer:
0° to 999.9 °C/°F
6 Upper-limit alarm with
standby sequence
---e X X
Thermocouple: –999 ° to
9,999°C/°F
7 Lower-limit alarm with
standby sequence
3--- X X
Platinum resistance thermome -
ter: –99.9 ° to 999.9 °C/°F
8 Absolute-value upper-
limit alarm
1--( X
0°C/°F
X
0°C/°F
9 Absolute-value lower-
limit alarm
)--1 X
0°C/°F
X
0°C/°F
Key Protection Switch (SW101, PROTECT)
The key protection switch is factory-set to the OFF position. When the key protection switch is ON, the Level Key , Up and Down Keys, and
Auto-tuning Key cannot be operated. In ef fect, the E5EX is write-protected and the set values (such as the alarm value) can be only read out.
However, when pin 4 of the function selector (SW201, FUNCTION) is set to the ON position (i.e., SP (set point) protection is cancelled), only the
set temperature value can be changed.
Terminator Switch (SW206, TERMINATOR)
The terminator switches of all the T emperature Controllers on a network must be set to the OFF position, except the terminator switch of the
Temperature Controller working as the end unit (i.e. the T emperature Controller farthest from the host computer on a network). The terminator
switch is factory-set to the OFF position.
Note: If the terminator is not designated correctly , the total current consumption will increase and communications errors could result.
Inputting Parameters
The T emperature Controller has three display levels 0, 1, and 2, in which only specific parameters can be set. Level 0 is the initial level and is
automatically entered at power application. T o change the mode to set or change a dif ferent group of parameters, hold down the Level Key for 2
seconds minimum. The display level mode changes as shown below . Actual displays vary with models and switch settings. If a display does not
appear as expected, check your switch settings.
––––––– ––––––– –––––––
Level 0
Power ON
Level 1 Level 2
Press the Level Key. Press the Level Key. Press the Level Key.
Process value, bank no.,
alarm settings, input shift,
proportional band, integral
time, derivative time
Upper-/lower-limits of set -
ting range, control period,
hysteresis, heater current,
heater burnout current
Control output value,
bank copy, sensor type
display
, alarm mode dis -
play 1 and 2, unit no.,
baud rate

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
10
Level 0
In this level, parameters such as the alarm setting, input shift values
can be set or changed. When these parameters are being set or
changed,
the new values are displayed on the SV display . The pa -
rameter to be set or changed is selected by pressing the Display
Key
the required number of times.
Process temperature
0(Temperature setting)
PV
SV
Press aCommunications
Models with heater burnout alarm
8 memory banks
Models without heater
burnout alarm
(Bank number)
Press a
(Note 1)
Alarm
(Note 1)
Alarm 1
(Note 1)
Alarm 2
Press a
(Note 2)
Input shift value
Press a
(Note 3)
Proportional band
Press a
(Note 3)
Integral time
Press a
(Note 3)
Derivative time
Press a
bk
0
al-1
0
al-2
0
al
0
in-s
0.0
p
40.0
i
240
d
60
Press a
Note: 1. Displayed only when the alarm function is selected.
2. Displayed only when the input shift display function is
selected.
3. Displayed
only when the PID constant display function
is selected.
Process V alue
While the process temperature is displayed, the desired tempera-
ture
can be set with Up and Down Keys. The value is factory-set to
0°C/°F.
Bank No.: bk
When “ bk ” is displayed on the PV display , the memory bank num -
ber
can be set with Up and Down Keys. The memory bank number is
factory-set to 0. This means the E5AX-BA/E5EX-BA operates with
the values set in memory bank 0 if the memory bank number is not
reset before use.
Alarm 1, 2: al-1 , al-2
Alarm: al
When
“ al ” is displayed on the PV display , the alarm value for alarm
output can be set on the SV display with Up and Down Keys. Usual -
ly,
the alarm value is set as a deviation from the main setting, but it
can also be set as an absolute value when the absolute value alarm
mode is selected. The message is not displayed if the alarm mode
selector is set to position 0. The value is factory-set to 0 °C/°F.
Input Shift: in-s
When “in-s ” is displayed on the PV display, the input shift value
can
be set on the SV display with Up and Down Keys. When a plati -
num resistance thermometer is used, the range is from –99.9°to
999.9°C/°F in units of 0.1°C/°F. If the displayed temperature does
not
need to be shifted, set 0 °C/°F . This function is used to shift the
temperature display form the measured value by a desired value, as
shown by the examples in the following table:
Input shift value Temperature
measured by sensor
Displayed
temperature
0 (without shift) 100°C 100°C
10 (of fset by 10 °C) 100°C110°C
–10 (of fset by –10 °C) 100°C 90°C
Proportional Band: p
When
the character “ p ” is displayed on the PV display , the propor -
tional band (P constant) can be changed using the Up and Down
Keys.
The new value will be displayed on the SV display . It can be
set in a range from 0.1 ° to 999.9 °C/° F in units of 0.1 °C/°F . The value
is factory-set to 40 °C/°F.
Integral T ime : i
When
the character “ i ” is displayed on the PV display , the integral
time (I constant) can be changed using the Up and Down Keys. It
can
be set in a range from 0 to 3,999 seconds in units of 1 second.
The value is factory-set to 240 seconds.
Derivative T ime : d
When
the character “ d ” is displayed on the PV display , the deriva -
tive
time (D constant) can be changed using the Up and Down Keys.
It can be set in a range from 0 to 3,999 seconds in units of 1 second.
The value is factory-set to 60 seconds.
Memory Bank Function
The E5AX-BA/E5EX-BA has 8 memory banks (memory bank 0
through 7) where parameters such as main setting, alarm values,
PID constants, and input shift values can be preset. By switching
from a memory bank to another, different parameters can be se-
lected
at a time with ease.
Memory Configuration of the E5AX-BA/E5EX-BA
Memory Bank 0 to 7
The following parameters are set separately for each bank.
Main setting, alarms 1 and 2, input shift, proportional band, integral
time, derivative time, and hysteresis.
Common Data
The same values are used for the following parameters, regardless
of the bank setting. Upper-/lower-limit values of the setting range,
and
control period.
Bank Number Display
The selected memory bank number is displayed on the bank num -
ber
display and the control operation is ef fected according to the pa -
rameters
preset in the selected memory bank.

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
11
Selection of Bank Number
1. To select the bank number with key input, set pin 7 of the
function
selector to the OFF position first. Select display level
1 with the Level Key and press the Display Key . Then select
the bank number with the Up and Down Keys. The selected
bank number will appear on the SV Display .
2. To select the bank number with the bank selection terminal
input,
set pin 7 of the function selector to the ON position first.
Then connect (short-circuit) or disconnect (open) the
following
bank terminals to the SG terminal (terminal 1):
Bank Terminals
0 Disconnect all terminals.
1 Connect only Bank terminal 0 to SG.
2 Connect only Bank terminal 1 to SG.
3 Connect Bank terminals 0 and 1 to SG.
4 Connect Bank terminal 2 to SG.
5 Connect Bank terminals 0 and 2 to SG.
6 Connect Bank terminals 1 and 2 to SG.
7 Connect Bank terminals 0, 1, and 2 to SG.
Level 1
In this level, parameters such as upper- and lower-limit values of the
setting limit, control period, hysteresis, heater current, and heater
burnout
alarm are set.
sl-h
1300
PV
SV Lower setting limit
Models with heater
burnout alarm
Heater current
Heater burnout
alarm
Press a
Upper setting limit
Press a
Control period
(Note 1)
Press a
Hysteresis
(Note 2)
Press a
Press a
sl-l
-200
cp
20
hy5
0.8
ct
0.0
hb
0.0
Model without heater
burnout alarm
Note: 1. Not displayed in the ON/OFF control mode or when the
output switch (SW205 OUTPUT TYPE) is set to CUR-
RENT.
2. Not displayed when the PID control with feed-forward
circuitry
is ON (when P is set to 0).
Lower/Upper Limits of Setting Range: sl-l , sl-h
–200 0 400 1300
SL-L SL-H
Basically, the temperature range that can be measured is deter-
mined
by the temperature sensor to be used. For example, when a
K-type (chromel-alumel thermocouple) temperature sensor is se-
lected, the measurable range is from –200°to 1,300°C. However,
this temperature range can be narrowed, for example, to 0°to
400°C.
T o do this, set the lower-limit value of the temperature setting
range, in this case to 0°C, on the SV display by using the Up and
Down
Keys while “ sl-l ” is displayed on the PV display . Similarly ,
set the upper-limit value, 400°C, while “sl-h ” is displayed. If the
process
temperature falls below the set lower-limit value or exceeds
the set upper-limit value, it is displayed on the PV display within the
temperature range of the temperature sensor .
Control Period: cp
When
“ cp ” is displayed on the PV display , the control period can be
set or changed in a range from 1 to 99 seconds in units of 1 second.
The factory setting is 20 seconds. When a Voltage Output Unit is
used,
it is recommended that the control period be set to 20 seconds
or less (ideally , about 2 seconds), so that the control operation can
be performed more accurately .
Control output
ON
OFF 20 seconds
When control period is
set to 20 seconds
Hysteresis: hys
The
hysteresis value for the ON/OFF control can be set in a range
from 0.0 ° to 999.9 °C/° F while “ hys ” is displayed on the PV display
using the Up and Down Keys. The value is factory-set to 0.8 °C/°F.
Low temperature Set temperature High temperature
Hysteresis
ON
OFF
Reverse operating
(heating control)
Hysteresis
ON
OFF
Normal operation
(cooling control)
Low temperature Set temperature High temperature
Heater Burnout Alarm: hb
A
burnout current value can be set to detect heater failure. First, the
current measured in the heater current value mode will be displayed
in amperes. The normal current value is the current value with the
control output ON. Disconnect the heater and read the current value
and obtain the set value from the following:
Normal current value + Current value with disconnected heater
2
Use
the Display Key and set the PV display to hb. The dif ference be -
tween the normal current and the one with a disconnected heater
should
be 2.5 A minimum. If it is less than 2.5 A, the operation to de -
tect
heater disconnection will not be stable. The value can be set in a
range of 0.1 to 49.9 A in units of 0.1 A.
Note: 1. Do not allow a current exceeding 50 A to flow in the Con -
troller;
the maximum continuous heater current is 50 A.
2. Set the value to 0.0 A if the heater burnout alarm is not
used, in which case the alarm will not function at all.

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
12
Heater Burnout Alarm and Sensor Failure Alarm
Alarm Heater burnout alarm Sensor failure alarm
Output terminal Output to heater burnout alarm output terminals.
Output ON Alarm output turns ON when heater burnout
is detected.
Alarm output turns ON when sensor failure is
detected.
Output display monitor HB on front panel is lit. SENS on front panel is lit. (Not incorporated
by the model with a communications function)
Output retention function Yes No
Output retention reset Set heater burnout alarm value to 0.0 A or
switch power OFF and then ON again.
Output turns OFF when sensor failure
condition is removed.
Influence on control output/alarm
output No Y
es (see page 15 5.err flushing)
Connections to T emperature Controller
7
6
5
4
3
2
1
17
16
15
14
13
12
11
10
9
8
Heater burnout and
Temperature Controller
Heater *
+
–
200 VAC
sensor failure alarm
* Wire through the hole of the Current Transformer.
The Current Transformer and the Temperature Controller
can be connected regardless of polarity.
Connected to Temperature Controller.
Connected to heater.

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
13
Level 2
Level 2 is used both to display switch settings, to copy bank settings,
and to set the unit number and baud rate for communications. When
the Level Key is pressed for 2 seconds minimum after power appli -
cation,
“ sl-l ” is displayed on the PV display . When the Level Key is
held down for another 2 seconds “ sl-l ” appears, “ o ” will be dis -
played
on the PV display , and you will be in setting level 2 and can
use the features described below .
Control Output V
alue: o
When
the T emperature Controller enters level 2, the control output
value is displayed on the SV display in a range of 0.0% to 100%.
Bank Copy Function: bcpy
The bank copy function makes it possible to copy the parameters
other than the main setting that have been stored in bank 0 to any
other bank(s) (banks 1 through 7), which require the following steps:
bcpy
- - -
PV
SV Control output value
Unit number
Baud rate
Press a
Bank copy
Press a
Input type
Press a
Press a
Press a
0
0
in-t
k ca
u-no
0
bp5
9600
al-1
- - -c Alarm 1 mode
Press a
al
- - -c Alarm mode
al-2
- - -c Alarm 2 mode
Communications8 memory banks
Model with heater
burnout alarm
(Note)
(Note)
(Note)
Communications8 memory banks
Press a
Model without heater
burnout alarm
Note: Displayed only when the alarm function is selected.
Stand-by bcpy
- - -
Press the Level Key to select
display level 2 and press the
Display Key. Then the Control-
ler is ready to copy to bank.
Press the Up Key to start copy-
ing. “copy ” is displayed on the
SV display while copying.
Execution bcpy
copy
“end ” is displayed on the SV
display when copying is com-
pleted.
Completion
bcpy
end
b
Note: 1. The parameters stored in bank 0 can be copied to banks
1 through 7.
2. When the parameters of bank 0 are copied, the old pa -
rameters
of other banks are replaced with the parame -
ters
of bank 0.
Input T ype: in-t
When
“ in-t ” is displayed on the PV display , the present setting of
the input type selector (SW202) is displayed on the SV display . The
following table shows the messages that may be displayed:
Thermocouple T ype (SW202, INPUT)
Display Sensor
r pr R
s pr S
k ca K
ic J
t cc T
e cr E
b pr B
nN
l ic L
u cc U
Platinum Resistance Thermometer T ype (SW207, INPUT)
Display Sensor
pt JPt100
pt Pt100
Note: JPt100:100°C/139.16Ω
PT100: 100°C/138.50Ω

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
14
AL (Alarm Mode): al (SW203, ALM2)
When “ al ” is displayed on the PV display in level 2, alarm output
mode or the present setting of the corresponding alarm mode selec -
tor
(SW203, ALM1/SW204, ALM2) is displayed on the SV display .
The following table shows the messages that may be displayed.
Display Alarm mode
No display No alarm
)--( Upper- and lower-limit alarm
---( Upper-limit alarm
)--- Lower-limit alarm
-()- Upper- and lower-limit range
alarm
3--e Upper- and lower-limit alarms
with standby sequence
---e Upper-limit alarm with
standby sequence
3--- Lower-limit alarm with
standby sequence
1--( Absolute-value upper-limit
alarm
)--1 Absolute-value lower-limit
alarm
Unit No.: u-no
Each
T emperature Controller must have a unit number to communi -
cate
with the host computer . When “ u-no ” is displayed on the PV
display , use the Up and Down Keys to set an integral number of 0
through 99 as the unit number . The selected unit number will appear
on the SV display . The unit number of each T emperature Controller
must be different from one another or an error will result. The unit
number is factory-set to 0.
Baud Rate: bps
Each Temperature Controller must have a baud rate of 150, 300,
600, 1200, 2400, 4800 or 9600 bps to communicate with the host
computer.
When “ bps ” is displayed on the PV display , use the Up
and Down Keys to set a baud rate on the T emperature Controller .
The
selected baud rate will appear on the SV display , which, howev -
er,
will be ef fective only after the power to T emperature Controller is
turned of f once and turned on again. The baud rate is factory-set to
9600 bps.
Starting Control Operation
The E5EX will start control operations as soon as power is turned on
until power is turned of f. T urn of f the power and then turn it back on
after setting the desired parameters.
Auto-tuning
When the Auto-tuning Key is pressed for 1 second minimum, the
Temperature Controller automatically starts tuning the PID con-
stants. While auto-tuning is in operation, the auto-tuning indicator
on the front panel will flash. The Temperature Controller executes
control
based on the set PID constants (factory-set to P = 40 °C/°F , I
= 240 seconds, and D = 60 seconds) until the temperature of the
controlled
system reaches the main setting. After that, the T empera-
ture Controller automatically adjusts the PID constants using the
limit
cycle method.
When the auto-tuning indicator turns off, the auto-tuning is termi-
nated
and PID constants are renewed.
Auto-tuning can be carried out regardless of whether the T empera-
ture Controller is performing reverse (heating) or normal (cooling)
operation.
T o stop auto-tuning, press the Auto-tuning Key again for
1 second minimum. Auto-tuning can be executed at any time: at
power
application, while the temperature is rising, or after the con -
trol
action has stabilized.
Limit Cycle Method
The optimum PID constants are calculated by varying the control
output
value and generating external oscillation.
Main
setting
Previous PID
constants New PID constants
A
T indicator flashes

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
15
Error Messages
The T emperature Controller is provided with self-diagnostic functions, and will display an error message on the PV display when an error is
detected.
Message Cause Control output Alarm output
Pulse output Current output*
ffff
Input temperature has exceeded the upper
limit of the temperature range by more than
20°C
OFF during reverse
(heating) operation
ON during normal
(cooling) operation
4 mA during reverse
(heating) operation
20 mA during normal
(cooling) operation
Sends alarm signal in
accordance with the
set alarm mode.*
----
Input temperature has fallen below the lower
limit of the temperature range by more than
20°C.*
ON during reverse
(heating) operation
OFF during normal
(cooling) operation
20 mA during reverse
(heating) operation
4 mA during normal
(cooling) operation
Sends alarm signal in
accordance with the
set alarm mode.*
5.err3.
(flashes)
The thermocouple has burned out or
short-circuit bar has been removed. The plati -
num resistance thermometer has burned out
or A and B terminals have been short-cir -
cuited.
OFF Approx. 1 mA Sends alarm signal in
accordance with the
set alarm mode.
e111 (flashes)
e333 (flashes)
Memory failure ( e111 ) or A/D converter failure
(e333) has occurred. T emperature Controller
must be repaired if recovery is not made by
turning power off once and on again.**
OFF Approx. 1 mA OFF
*When the temperature resistance thermometer is used, this message is displayed when the temperature has fallen below -99.9 °C.
**E333 also appears if a PT platinum resistance thermometer is connected to E5EX thermocouple models.
Connection with G3PX Power Controller
Refer to the G3PX data sheet for the details of the G3PX Power Controller .
The following is possible by connecting the E5AX/E5BX to the G3PX:
Using the current output, more precise temperature control will be performed.
The life of the heater will be prolonged.
Connection Example:
Current Output (4 to 20 mA) Model with G3PX
Connection Example:
Current Output (4 to 20 mA) Model
with G3PX for Slope Variation
+
–
9
10
LOAD1
LOAD2 Heater
Temperature
Controller
4 to 20 mA
2
3
4
5
6
7
8
1
9
10
G3PX
DUTY
Internal slope setting
3
2
1
G32X-VR External
Slope Setting Adjustor
(3 kΩ)
100/110 VAC
LOAD1
LOAD2
9
10
Heater
Temperature
Controller +
–
4 to 20 mA
2
3
4
5
6
7
8
1
9
10
G3PX 100/110 VAC

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
16
Classification Basic model High performance model
Model G3PX-220EU G3PX-240EU G3PX-260EU G3PX-220EH
-CT03/-CT10 G3PX-240EH -CT03/-CT10 G3PX-260EH -CT03/-CT10
Apperance
(40-A type) (40-A type)
Phase Single-phase
Applicable load Resistive or inductive load
Output display Y es (level indicator)
Heater burnout/short-mode
failure detection
No Yes
Rated output 20 A 40 A 60 A 20 A 40 A 60 A
100/1 10/200/220 V AC
Frequency 50/60 Hz
Input signal for control Current input (analog control output signal):4 to 20 mA
V oltage input (ON/OFF control input signal):5 to 24 VDC
3 kΩ (B type, 2 W min.)
External slope setting 3 kΩ(B type)
Alarm relay output SPDT , 250 V AC; 8 A at 30 VDC
Connection Example of Temperature Controller and SSR
INPUT LOAD
+
–
+
–
Temperature Controller
Voltage output
terminal (for driv-
ing SSR)
Select voltage
output time
Connectable
Load
Heater Power supply for
load 75 to 264 VAC
Power SSR
SSR
Temperature Controller
with Voltage Output
(12 VDC, 40 mA max.)
See the following table.
Model G3PA G3NH G3N G3NE G3B
Appearance
SSRs connected
in parallel
12 pcs. 8 pcs. 6 pcs. 2 pcs. 6 pcs.
Rated input
voltage
5 to 24 VDC 5 to 24 VDC 5 to 24 VDC 5/12 VDC 5 to 24 VDC
Features Thin, monoblock
construction with
heat sink
For high-power
heater control
Standard model with
screw terminals Compact, low-cost model with tab
terminals
Socket, model with
5-A switching
capacity

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
17
Dimensions
Note: All units are in millimeters unless otherwise indicated.
E5AX
Panel Cutout Side-by-side Mounting
of N Controllers
89
Mounting
Screw
12 11 5
2
to 10
j96
92+0.8
0
92+0.8
0 92+0.8
0
120 min.
L
L = (96N – 3.5)+1
0
E5EX
Current T ransformer (CT)
E54-CT1 E54-CT3
Panel Cutout Side-by-side Mounting
of N Controllers
120 min.
45+0.6
0
92+0.8
0 92+0.8
0
L
L = (48N – 2.5)+1
0
48
96
12 89 11 6
to 15
Mounting screw
AT
7.5
25
10.5
10
21
30
15
40
2.8
3
Two, 3.5 dia.
holes
5.8 dia.
30
9
40
15
530 5
40
2.36 dia.
12 dia
Installation
E5AX-BA/E5EX-BA (with 8 Memory Banks)
4 to 20 mA
9
8
+
–12 VDC 40 mA
+
–
9
8
9
8
7
6
5
4
3
2
1
17
16
15
14
13
12
11
10
11
10 +
–11
10
B
A
12 B
100 to 240 VAC
50/60 Hz
FG
Use these terminals
when connecting a
thermocouple.
Use these terminals when
connecting a platinum re-
sistance thermometer.
BANK2
BANK1
BANK0
Alarm output 2
Alarm output 1
Control
output
9
8Ground FG terminal 17 to avoid noise interference.
For relay or
SSR output
For voltage
output
For current
output
Note: Do not connect unused terminals.

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
18
E5AX-BAH/E5EX-BAH (with Heater Burnout Alarm)
Note: *The Current Transformer must be the E54-CT1 or
E54-CT3.
Other Current T ransformers cannot be con -
nected.
**The
heater burnout alarm goes ON when the E5EX
detects a sensor abnormality or heater burnout.
12 VDC 40 mA
+
–
9
8
9
8
7
6
5
4
3
2
1
17
16
15
14
13
12
11
10
11
10 +
–11
10
B
A
12 B
100 to 240 VAC
50/60 Hz
FG
BANK2
BANK1
BANK0
Heater burnout alarm output**
9
8Ground FG terminal 17 to avoid noise interference.
For voltage
output unit
CT
Current Transformer (CT)*
For relay or
SSR output
Alarm output 1
Control
output
Use these terminals
when connecting a
thermocouple.
Use these terminals when
connecting a platinum resis-
tance thermometer.
E5EX-A02 (with RS-422)
4 to 20 mA
9
8
+
–12 VDC 40 mA
+
–
9
8
9
8
7
6
5
4
3
2
1
17
16
15
14
13
12
11
10
11
10 +
–11
10
B
A
12 B
100 to 240 VAC
50/60 Hz
FG
SDA
RDB
RDA
9
8Ground FG terminal 17 to avoid noise interference.
For relay or
SSR output
For voltage
output unit
For current
output
SG
SDB
Use these terminals
when connecting a
thermocouple.
Use these terminals when
connecting a platinum re-
sistance thermometer.
Alarm output 2
Alarm output 1
Control
output
Note: Do not connect unused terminals.
E5EX-AH02 (with RS-422 and Heater Burnout Alarm)
12 VDC 40 mA
+
–
9
8
9
8
7
6
5
4
3
2
1
17
16
15
14
13
12
11
10
11
10 +
–11
10
B
A
12 B
100 to 240 VAC
50/60 Hz
FG
SDA
RDB
RDA
9
8Ground FG terminal 17 to avoid noise interference.
SG
SDB
CT
Heater burnout alarm output**
For voltage
output unit
Current Transformer (CT)*
For relay or
SSR output
Alarm output 1
Control
output
Use these terminals
when connecting a
thermocouple.
Use these terminals when
connecting a platinum resis-
tance thermometer.

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
19
E5EX-A03 (with RS-485)
4 to 20 mA
9
8
+
–12 VDC 40 mA
+
–
9
8
9
8
7
6
5
4
3
2
1
17
16
15
14
13
12
11
10
11
10 +
–11
10
B
A
12 B
100 to 240 VAC
50/60 Hz
FG
B
A
9
8Ground FG terminal 17 to avoid noise interference.
SG
SDB
Use these terminals
when connecting a
thermocouple.
Use these terminals when
connecting a platinum resis-
tance thermometer.
Alarm output 2
Alarm output 1
Control
output
For relay or
SSR output
For voltage
output
For current
output
E5EX-AH03 (with RS-485 and Heater Burnout Alarm)
12 VDC 40 mA
+
–
9
8
9
8
7
6
5
4
3
2
1
17
16
15
14
13
12
11
10
11
10 +
–11
10
B
A
12 B
100 to 240 VAC
50/60 Hz
FG
B
A
9
8Ground FG terminal 17 to avoid noise interference.
SG
CT
Heater burnout alarm output**
For voltage
output unit
Current Transformer (CT)*
For relay or
SSR output
Alarm output 1
Control
output
Use these terminals
when connecting a
thermocouple.
Use these terminals when
connecting a platinum resis-
tance thermometer.
Precautions
Mounting
The dimensions of the Temperature Controller conform to DIN
43700.
Recommended panel thickness is 1 to 8 mm.
Do not install the Temperature Controller in a location exposed to
excessive
dust or corrosive gases. Moreover , avoid locations sub -
ject
to heavy vibration or shock, water or oil spray , or high tempera -
tures.
Any of these condition will af fect product life.
Isolate the T emperature Controller from equipment that generates
strong, high-frequency noises such as high-frequency welders, be -
cause
such equipment may prevent proper operation.
Attach the two mounting brackets supplied with E5EX on the top
and
bottom of the T emperature Controller . T ighten the screws of the
mounting brackets with your fingers.
Mounting bracket

E5AX-BA/BAH/E5EX-BA/A02/A03 E5AX-BA/BAH/E5EX-BA/A02/A03
20
Connection Examples
With Solderless T erminal
Use M3.5 solderless terminals with the Temperature Controller’s
M3.5 self-rising pressure plate screws.
Solder-dipped Leads
Strip 6 to 12 mm of the lead wires and carefully arrange the wire tips.
Do not tighten the terminal screw with excessive force, because do -
ing so may damage them. The terminal block of the Temperature
Controller
is constructed so that the lead wires can be connected to
all the terminals from the same direction.
Top
Bottom
Input Type Connection
To reduce inductive noise influence, the lead wires connecting the
input type to the T emperature Controller must be separated from the
power lines and load lines.
Use the specified compensating conductors for thermocouples.
Use lead wires having a small resistance for platinum resistance
thermometers.
Sequenced Circuits
Several seconds are required until the relay is turned ON after pow -
er
has been supplied to the T emperature Controller . Therefore, take
this time delay into consideration when designing sequenced cir-
cuits
which incorporate a T emperature Controller .
Terminal Arrangement Diagram on the Housing
The T emperature Controller allows the input and output devices to
be freely selected. Use the terminal arrangement diagram shown on
the housing of the T emperature Controller to identify the output de -
vice mounted on the Temperature Controller by marking the dia-
gram
as follows:
Check here with a felt-tip pen.
Stickers Inside Frontcover
Stickers indicating the input type (R, S, K, J, etc.) and Control Output
Unit (R, S, Q, and C) are supplied with the T emperature Controller .
Attach
the proper stickers to the front panel as shown below , allow -
ing
the input type and Control Output Unit mounted in the T empera-
ture
Controller to be easily identified.
Sticker identifying input type
Sticker identifying Control Output Unit
(The above is the E5EX-BA.)
OMRON Corporation
Temperature Control Devices Division
29th Fl., Crystal T ower Bldg.
1–2–27, Shiromi, Chuo-ku,
Osaka 540 Japan
Phone: [phone]
Fax: [phone]
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. T o convert grams into ounces, multiply by 0.03527.
Cat. No. H38–E1–3 In the interest of product improvement, specifications are subject to change without notice.
Printed in Japan
0492–3M (0492)