Omron E5AX-LA, E5AX-LA01, E5AX-LA02, E5AX-MA01, E5AX-MA02 User Manual
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Digital Controller E5AX-LA/-MA
A 96 x 96-mm (DIN) Digital Process
Controller
Optimum PID control with feed-forward control
circuitry.
High accuracy (+0.3% FS +1 digit max.).
Replaceable Output Units.
Models with communications capabilities also
available.
Ordering Information
Digital Controller
Communications None RS-232C RS-422* RS-485* BCD Transmission
output*/**
(4 to 20 mA)
Communica-
tions Board
Add-on type
Model E5AX-
L(M)A
*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-LA02-X
**Capable of transmitting the process value or output value, but remote setting by external input is not possible.
E5AXL(M)A01
E5AXL(M)A02
E5AXL(M)A03
E5AXL(M)A20
E5AX-L(M)AF E5AX-L(M)AM
Control Output Units
Output Relay output SSR output Voltage output (for driving SSR) Current output
Model E53-R E53-S E53-Q E53-C
Control Input
Model E5AX-LA E5AX-MA
Input (switch
selectable)
Input range 4 to 20 mA 0 to 20 mA 1 to 5 V 0 to 5 V 0 to 1 V 0 to 100 mV 0 to 10 mV –10 to 10 mV
Setting 0 1 2 3 4 0 1 2
Current Voltage Voltage
Communications Boards
Communications RS-232C RS-422 RS-485 BCD Transmission
Model E53-X01 E53-X02 E53-X03 E53-X20 E53-XF
output
(4 to 20 mA)
1
E5AX-LA/-MA
E5AX-LA/-MA
Specifications
Digital Controller 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 E5AX-LA: 4 to 20 mA, 0 to 20 mA, 1 to 5 V, 0 to 5 V, 0 to 1 V
Input impedance Current input: 150 W
Control output See Control Output Unit Ratings.
Control mode ON/OFF or PID control with auto-tuning
Alarm output Relay output, 2 independent SPST-NO contacts; 3 A, 250 VAC
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)
Shift set input No voltage, contact signal input (set value shifted when ON); Contact impedance: 100 W max.
Other functions Upper and lower limits for set value
Note: The control output is optically insulated from the internal circuits.
Control Output Unit Ratings
Relay Output Unit E53-R SPDT; 5 A, 250 VAC (resistive load)
SSR Output Unit E53-S SPST-NO; 1 A, 75 to 250 VAC (resistive load)
Voltage Output Unit E53-Q 40 mA, 12 VDC; NPN (with short-circuit protection)
(for driving SSR) E53-Q3 20 mA, 24 VDC; NPN (with short-circuit protection)
E53-Q4 20 mA, 24 VDC; PNP (with short-circuit protection)
Current Output Unit E53-C 4 to 20 mA, DC; Load: 600 W max. resolution: 212
Approx. 12 VA (at 100 VAC) to 15 VA (at 240 VAC) with communication function
E5AX-MA: 0 to 100 mV, 0 to 10 mV, –10 to 10 mV
Voltage input: 1 MW min.
Key protection
Input shift
Manual output (balanceless-bumpless operation switchable)
Normal and reverse output selection
Shift set
Scaling
Watchdog timer function (Detects failures in the CPU and restores the CPU.)
(Leakage current is 1.5 mA max. at 200 VAC)
2
E5AX-LA/-MA
E5AX-LA/-MA
Characteristics
Setting accuracy +0.3% FS +1 digit max.
Indication accuracy +0.3% FS +1 digit max. (Set value coincides with the indicated value, because no relative
Indication range –10% to 110% FS
Hysteresis 0.0% to 100.0% FS (in units of 0.1% FS)
Proportional band 0.0% to 999.9% FS (in units of 0.1% FS)
Integral time 0 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 –999 to 9999 (Decimal point is displayed at set position)
Alarm output hysteresis 0.0% to 100.0% FS (in units of 0.1% FS)
Scaling setting range –999 to 9999 (Decimal point is displayed at set position)
Manual output setting range 0% to 100% (in units of 1%)
Control period Pulse output: 1 to 99 s (in units of 1 s)
Sampling period 500 ms
Output refresh period Pulse output: 500 ms
Display refresh period 500 ms
Shift set –999 to 9999 (Decimal point is displayed at set position)
Input shift –999 to 9999 (Decimal point is displayed at set position)
Insulation resistance* 20 MW min. (at 500 VDC)
Dielectric strength* 2,000 VAC 50/60 Hz for 1 min between terminals of different polarity
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
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
*Tested with an Output Unit mounted.
error exists between both values.)
Current output: 500 ms
Destruction: 10 to 55 Hz, 0.75-mm double amplitude 2 hrs each in X, Y, and Z directions
Destruction: 300 m/s
Storage: –25% to 65%C (with no icing)
Rear case: IEC standard IP20
Terminals: IEC standard IP00
2
3 times each in 6 directions
Output Unit Characteristics
Relay unit life expectancy Mechanical: 10,000,000 operations min.
Electrical: 100,000 operations min.
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E5AX-LA/-MA
E5AX-LA/-MA
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
Digital
Controller
Read from
Digital
Controller
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, output
value, scaling value, process value, 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),
output value
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
$ Recommended connectors for E5AX.
RS-485, -422, Transmission output XM4 D-sub connector (9 pin) (OMRON)
RS-232C, BCD XM4, D-sub connector (25 pin) (OMRON)
2. A maximum of 32 Digital Controllers can be connected to one host computer using serial communications (RS-422, RS-485).
3. Outputs process value within the set limits.
Nomenclature
Process Value (PV) Display
Displays not only the process value but also indicates the character for parameter being displayed on the SV display and error messages.
Auto-tuning Indicator
Flashes on and off every
second when auto-tuning is taking place.
Shift Set Indicator
Lights when shift set function is in operation.
Manual Mode Indicator
Lights when in manual
mode.
Output Indicator
Lights when the control
output is ON. Lights off
when the current 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.
Front Cover
Down Key
Press to decrease the set value or other parameters. Successively decreases the value when held down.
Alarm 1 Indicator
Lights when the alarm 1 output is ON.
Set Value (SV) Display
Displays set value and other
parameters.
Alarm 2 Indicator
Lights when the alarm 2 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 set value or other parameters. Successively increases the value when held down.
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E5AX-LA/-MA
Operation
NOTICE: Always turn off power to the Digital 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.
To remove a Control Output Unit, push it up with the tip of
a flat-blade screwdriver as shown below.
E5AX-LA/-MA
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 this mark facing the direction
indicated by the arrow.
Set the output selector to PUL (Pulse) when a Relay
(SW202, OUT), SSR, or Voltage Output Unit is mounted.
Set the output selector to CUR (current) when a Current
Output Unit is mounted.
3. Four internal switches must be set on the E5AX: the input
type selector, the operating mode selector, and the alarm
mode selectors 1 and 2.
Protection switch (SW101, PROTECT)
Flat-blade screwdriver
Output Selector (SW202)
OFF ON
PUL CUR
Output
Current ON
Pulse OFF
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.
Setting
(factory-set to OFF)
Output selector
(SW202, OUT)
Alarm mode selector 2
(SW203, ALM2)
Alarm mode selector 1
(SW205, ALM1)
Operating mode selector (SW 201,
FUNCTION)
Input type selector (SW206,
INPUT)
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