Chapter 5 Troubleshooting
5-4
5
Type
Problem
Cause
Corrective action
Ref.
page
The communication quality
is degraded as a result of the
wiring condition.
The communication condition may be
improved by lowering the baud rate.
The communication condition may be
improved by selecting the R1 or R2
terminating resistor.
3-34
3-36
Check that the correct
Sending delay time is set.
In the case of connecting a number of
units over RS-485, reception errors in
the host device can be avoided by
delaying the sensor's response time.
3-38
An incorrect data format
or command is
transmitted.
Refer to the
error codes
and
send the data with the correct
format and command.
4-8
4-16
COM
RS-485
communication
control cannot be
done.
Normal
communication
over RS-422/485
is impossible
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.
4-6
SET
The settings are
wrong.
The settings were not
saved while RS-422/485
communication was
used.
The execution of the
Save
command
is required after making
setting changes with the
communications command (by using
the Setting and Monitoring Software
HL-G1SMI or the dedicated console.
The set value will be discarded with
the power turned OFF if the set value
is not saved.
3-43
The reflected beam from
the beam emitting spot
is blocked.
Move the position of the beam
projection spot or change the
mounting direction of the
sensor head
so the reflected
beam should not be blocked.
1-9
The beam emitting spot
is applied to the R
portion (curved surface)
of the measurement
object.
Apply the beam projection spot
to the top of R portion or adjust
the beam diameter so it comes
larger by moving the
measurement object back and
forth within the measurement
range.
1-8
The reflected beam has
directionality because
the surface of the object
is hairline-finished.
Check the
mounting direction
of sensor head.
1-7
MEAS
LED
The alarm
indicator lights up
and measurement
cannot be done.
↓
If an alarm occurs,
check the error
code of alarm
output read by
RS-422/485
communication.
The received light
intensity is insufficient
because the sampling
cycle is too short.
Set a longer
sampling cycle
or
shutter time
(when shutter time
is set to a fixed value)
.
3-13
3-14
Содержание HL-G1 A-C5 Series
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