
Chapter 7 Troubleshooting
7-4
7
Type
Problem
Cause
Corrective action
Ref.
page
MEAS
Measurement
values vary.
Moving Average is
small.
Increase the number of
Moving
Average
.
4-34
Measurement mode
is not set correctly.
Set the
Measurement Mode
according to applications or
measurement object. Select the
optimum mode.
4-8
Light emitter/receiver
is dirt.
Remove the dirt on the
light
emitter/receiver
on the sensor head.
9
1-7
Mounting direction of
sensor head is wrong.
Check the
mounting direction
of sensor head
.
1-10
Sensor head or
measurement object
is tilted.
Check the installation of sensor
head and position of
measurement object.
1-10
COM
RS-232C
communication
control can not be
done.
An error is
transmitted in
RS-232C.
RS232C cable is
disconnected.
Check the
cable connection
between RS232C cable and
connector.
5-2
RS232 cable type is
improper.
Use the
proper RS232C cable
type
, straight type or cross
type, depending on the settings
of personal computer.
5-3
1-2
The setting of baud
rate or communication
specification is
improper.
Check the settings of personal
computer currently connected
and set the correct
RS232C
communication specifications
.
5-2
Incorrect data format
or command is
transmitted.
Refer to the
error codes
and
send the data with correct
format and command.
5-6
5-8
Several commands are
sent continuously
without waiting
receiving responses
from the controller.
Send the next command after the
controller transmits the response to
the previous command.
5-5
COM
USB
communication
control can not be
done.
USB cable is
disconnected.
Connect the USB cable
securely.
1-2
USB cable type is
improper.
Use the USB2.0 full
speed-compliant cable at
USB2.0
interface
.
8-3
USB driver is not
correctly installed.
Correctly install the
USB driver
recorded in the CD-ROM.
1-3
The personal computer
used does not satisfy
the operating
environment.
Use the personal computer
satisfying the
operating
environment
.
5-25
Summary of Contents for HL-C2 Series
Page 32: ...Preface 30 MEMO ...
Page 50: ...Chapter 1 Prior to Use 1 18 1 MEMO ...
Page 65: ...Chapter 3 Programmable Display Operation 3 5 3 MEMO ...
Page 164: ...Chapter 4 Explanation of Functions 4 90 4 MEMO ...
Page 191: ...6 1 6 6 Maintenance and Inspection 6 1 Maintenance 6 2 6 2 Inspection 6 2 ...
Page 200: ...Chapter 7 Troubleshooting 7 8 7 MEMO ...
Page 250: ...Chapter 8 Specifications 8 50 8 50mm type Unit mm 85mm type Unit mm ...
Page 252: ...Chapter 8 Specifications 8 52 8 8mm type Unit mm 15mm type Unit mm ...
Page 270: ...Chapter 8 Specifications 8 70 8 MEMO ...
Page 271: ...1 Apx Appendix 1 Index 2 ...
Page 275: ...Appendix 5 Apx MEMO ...
Page 277: ......