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E5AX-LA/-MA

E5AX-LA/-MA

12

 Error Messages

The Digital 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 value has exceeded the upper-limit of
input range by 10% FS.

OFF during re-
verse operation
ON during nor-
mal operation

4 mA during re-
verse operation
20 mA during nor-
mal operation

The output will turn ON ac-
cording to the alarm mode
for an input value that is
greater than the upper limit
of the input range by 10%
of  full scale.

––––

Input value has fallen below the lower-limit of
input range by 10% FS.

OFF during re-
verse operation
ON during nor-
mal operation

20 mA during re-
verse operation
4 mA during nor-
mal operation

The output will turn ON ac-
cording to the alarm mode
for an input value that is
less than the lower limit of
the input range by 10% of
full scale.

5.err

 

(flashes)

The input is disconnected or shorted or the
input value has greatly exceeded the input
range.

OFF

Approx. 1 mA

The output will turn ON ac-
cording to the alarm mode
when the input goes to
maximum except in the
proportional alarm mode,
in which it will remain OFF.

e111

 (flashes)

e333

 (flashes)

Memory failure (

e111

) or A/D converter failure

(

e333

) has occurred. Digital Controller must

be repaired if recovery is not made by turning
power off once and on again.

OFF

Approx. 1 mA

OFF

Note:

If the display range (–999 to 9999) is exceeded, “FFFF” or “––––” will be displayed.

Input Error Displays

The following displays will appear when the input is not within specifications for the various types of input.

Input

Burnout

Short

Outside input range

Exceeding input

E5AX-LA

0

4 to 20 mA

––––

––––

ffff

     (overflow) or

5.err

1

0 to 20 mA

Value of 

cnl

cnl

––––

     (underflow)

2

1 to 5 V

––––

––––

3

0 to 5 V

Value of 

cnl

cnl

4

0 to 1 V

Value of 

cnl

cnl

E5AX-MA

0

0 to 100 mV

Value of 

5.err

cnl

1

0 to 10 mV

Value of 

5.err

cnl

2

–10 to 10 mV

Value of 

5.err

(

cnh

  +  

cnl 

)/2

Example: If 

dp

 is 1, 

inl

 is 0.0, and 

inh

 is 100.0, the following displays will appear for burnouts or shorts.

Input

Burnout

Short

E5AX-LA

0

4 to 20 mA

––––

––––

1

0 to 20 mA

0.0

0.0

2

1 to 5 V

––––

––––

3

0 to 5 V

0.0

0.0

4

0 to 1 V

0.0

0.0

E5AX-MA

0

0 to 100 mV

5.err

0.0

1

0 to 10 mV

5.err

0.0

2

–10 to 10 mV

5.err

50.0

Summary of Contents for E5AX-LA

Page 1: ...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 remo...

Page 2: ...ons 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...

Page 3: ...0 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...

Page 4: ...e 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 a...

Page 5: ...Output Unit is mounted Set the output selector to CUR 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 F...

Page 6: ...tion Pin number Pin setting Control setting Control mode 1 ON ON OFF operation OFF PID operation Control output 2 ON Normal OFF Reverse Input shift 3 ON Enabled OFF Disabled SP set point 4 ON Enabled...

Page 7: ...imit of a proportional band When the temperature rises to the upper limit of the proportional band point B in the figure the alarm output is turned ON This alarm function is convenient when the main s...

Page 8: ...disabled SW201 pin 6 ON 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 displ...

Page 9: ...t shift 10 0 10 0 1 0 shifted by 1 0 10 0 11 0 1 0 shifted by 1 0 10 0 9 0 This function can be used mainly for fine tuning compensation while leaving the set value unaffected Select this function by...

Page 10: ...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 co...

Page 11: ...ant control operations to be performed while setting parameters turn off the power and then turn it back on after setting the desired parameters Auto tuning When the Level Key and Mode Key are pressed...

Page 12: ...ed the input range OFF Approx 1 mA The output will turn ON ac cording to the alarm mode when the input goes to maximum except in the proportional alarm mode in which it will remain OFF e111 flashes e3...

Page 13: ...ons connector RS 232C and BCD connector is shown Communications board RS 422 and 485 terminals are shown Communications board 4 to 20 mA transmission output is shown 4 to 20 mA transmission output RS...

Page 14: ...ipment may prevent proper operation Attach the two mounting brackets supplied with E5AX on the top and bottom of the Digital Controller Tighten the screws of the mounting brackets with your fingers Mo...

Page 15: ...C are supplied with the Digital Controller Attach the proper stickers to the front panel as shown below allowing the input type and Control Output Unit mounted in the Digital Controller to be easi ly...

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