Omron ZN-A Series - Page 62

52
Section 4 APPENDICES
ZN
System Manual
Section 4
Troubleshooting
■ Air Particle Sensor (ZN-PDA Series)
[Main display]
[Sub-display (during communication status display)]
■ Interface Unit for Clean Monitoring System (ZN-SF Series)
[Main display]
Display Error Countermeasure
E-SEn
(flashing)
The Sensor fan or laser is in error
or has deteriorated.
Check the connection with the Sensor and Amplifier
Unit, and turn the power supply OFF then back ON
again.
If this does not solve the problem, the Sensor is
malfunctioning. Replace the Sensor.
E-hEd
(flashing)
The Sensor is not connected or is
in error.
E-EEP
(flashing)
The EEPROM is damaged or data
is in error.
Hold down the ENT key for at least 3 seconds.
If this does not solve the error, the Amplifier Unit is
malfunctioning. Replace the Amplifier Unit.
E-Sht
(flashing)
One or all of the judgment outputs
is short-circuited.
Correct short-circuiting of short-circuited loads. (The
sensor is automatically restored after the short-
circuited load is canceled.)
----- This error is indicated until the
initial data is obtained after the
power supply is turned ON or the
FUN mode is switched to the RUN
mode.
The time it takes to obtain the initial data depends on
the settings for the number of samples to average and
the measurement time.
Display Error Countermeasure
Err-_ Communications timeout and
other communications errors
• Check the cable connection with the Air Clean Unit.
• Make sure that the channel No. of the Air Clean Unit is "0".
• Switch DIP switch 1 on the Air Clean Unit to ON
(external communications control enabled).
Display Error Countermeasure
E-AmP
(flashing)
The Amplifier Unit is not
connected or the adjacent
Amplifier Unit cannot be
recognized correctly.
• Set all mode switches on the Amplifier Unit to the
RUN mode.
• Make sure that the Amplifier Unit and Calculating
Unit are connected correctly, and turn the power
supply back ON again.
If this does not solve the problem, the Amplifier Unit
or Calculating Unit is malfunctioning. Replace the
Amplifier Unit or Calculating Unit.
E-EEP
(flashing)
The EEPROM is damaged or data
is in error.
Hold down the ENT key for at least 3 seconds.
If this does not solve the error, the Amplifier Unit is
malfunctioning. Replace the Amplifier Unit.
Err__
(during
communications
status display)
Communications timeout and
other communications errors on
the channel indicated by __.
• Check the cable connection with the Air Clean Unit.
• Check the channel No. of the Air Clean Unit and the
feedback function settings.
4append.fm52ページ２００７年６月２８日 木曜日 午前９時１８分