Troubleshooting
128
ZX2 User’s Manual
INTRODUCTION
MAIN
APPLICATIONS
& SETTING
METHODS
SPECIFI-
CATIONS
INDEX
SETTING
TRANSITION
CHARTS
DETAILED
SETTINGS
FLOW OF
OPERATION
CONTENTS
PREPARATION
FOR
MEASUREMENT
BASIC
SETUP
TROUBLE-
SHOOTING
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
Troubleshooting
This section describes countermeasures for temporary hardware problems. Check the
malfunction in this section before sending the hardware for repair.
Ca
tego
ry
Problem
Probable cause and possible countermeasure
Pages
Op
er
at
io
n
The device restarts during
operation.
• Is the power supply device connected correctly?
• Are the Calculating Units connected correctly?
No input signal is received. • Are all cables connected correctly?
• Is the input signal line disconnected?
The measured values
fluctuate and are not stable
depending on day and
time.
• This problem may be due to temperature
characteristics. Execute zero reset periodically using
the standard object to correct this problem.
Laser light is not emitted.
• Is the LD-OFF input short-circuited?
Bank switching by signals
from the external input
terminal is not functioning.
• Is the external input terminal set to
?
• Is the cable connected correctly?
The state returns to
in the RUN
mode even if after a bank
is switched by button
operation.
• Is the external input terminal set to
?
Displa
y
The main display stays at
[-----].
• Has a timing input been made while hold is enabled
and the trigger mode is
?
• If the hold function is enabled and the trigger type is
or
, has the self-trigger level
been set to an appropriate value?
An abnormal distance is
displayed when the object
is clearly outside the
measurement range.
• This problem may occur due to the characteristics of
the sensor. Make sure that the distance to the
sensing object is appropriate.
—
is displayed on
the sub-display when the
power is turned ON.
• The laser of the Sensor Head has deteriorated.
Replace the Sensor Head.
—
is displayed on
the sub-display.
• Is the LD-OFF input short-circuited?
is displayed on
the sub-display.
• Is the timing input short-circuited?
is displayed on
the sub-display.
• Is the reset input short-circuited?
Even though the
installation conditions are
the same, measured
values differ considerably.
• Is the zero-reset input short-circuited?