Omron ZJ-SD Series User Manual page 124

Section 7
Troubleshooting
Troubleshooting
This section describes countermeasures for temporary hardware problems. Check the
malfunction in this section before sending the hardware for repair.
Problem
Device restarts during operation.
Judgments not output to external
devices
No input signal accepted
No communications with personal
computer
Strange linear output levels
Nothing displayed on main display
or sub-display
The main display remains at [-----].
The measured values fluctuate and
are not stable depending on day
and time.
Measured values stay fixed and do
not change.
ZJ-SD
110
User's Manual
Probable cause and possible countermeasure
• Is the power supply device connected correctly?
• Are the Interface and Calculating Units connected correctly?
• Are all cables connected correctly?
• Is the signal line disconnected?
• Are reset inputs short-circuited?
• Are all cables connected correctly?
• Is the signal line disconnected?
• Is the cable connected correctly?
• Is the Interface Unit connected correctly?
• Is the switch under the Interface Unit on the side without the tab?
• Is the connector pin arrangement correct?
• Is the switch on the bottom of the Amplifier Unit set to the correct
position?
• Has the correct selection (voltage/current) been made in the
monitor focus settings?
• Linear output levels can also be fine-tuned.
Has the number of display digits been set to zero?
• Has a timing input been made while hold is enabled and the trigger
type has been set to TIMIG?
• If the hold function is enabled and the trigger type is [UP] or
[DOWN], has the self-trigger level been set to an appropriate
value?
A possible cause is the influence of temperature characteristics.
Execute zero reset periodically using the standard sensing object to
correct this problem.
• Are the reset input and bank shift input short-circuited or ON?
• Is the hold function set?
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