Hioki BT4560 - Page 125

119
Troubleshooting
No. Trouble Conrm Possible causes → Solution Ref.
2-3
Zero adjustment is
not possible.
Measurement values before
zero adjustment is not
within the acceptable range.
The impact of the wiring shape is too
large.
→ Reduce the loop area formed by the
return cable and the measuring object.
→ Reduce the loop area formed by
SENSE-H and SENSE-L.
−
Measurement error is
displayed.
There is a problem with the wiring.
→ Adjust again with the correct wiring.
When the resistance value is high due to
self fabricated cables, zero adjustment
cannot be performed. Reduce the wiring
resistance in such cases.
p. 30
Concerning EXT.I/O items
No. Trouble Conrm Possible causes → Solution Ref.
3-1
The instrument
does not operate
at all.
IN and OUT displayed
in the EXT.I/O test of
the instrument does not
match with the controller.
Wiring etc. is incorrect.
→ Check EXT.I/O again.
• Loose connection between connectors
• Is the pin number correct?
• Wiring of ISO_COM terminals
• NPN/PNP settings
• Contact (or Open collector) control
(Not voltage control)
• Power supply to the controller
(Power supply to the instrument is not
required.)
p. 80
3-2
TRIG is not
applied.
Trigger source is internal
trigger (INT).
TRIG signal cannot apply a trigger with
internal trigger setting.
→ Set an external trigger.
p. 37
ON time of TRIG is less
than 0.1 ms.
ON time of TRIG is short.
→ Ensure that ON time is 0.1 ms or more.
−
ON time of TRIG is less
than 1 ms.
OFF time of TRIG is short.
→ Ensure that OFF time is 1 ms or more.
−
3-3 Does not LOAD.
Panel has not been
saved in the loaded panel
number.
Panel that is not saved cannot be loaded.
→ Change the LOAD signal, or save the
panel again so it matches the LOAD signal.
p. 82
3-4 EOM is not output.
Measurement values are
not updated.
Conrm Q&A in 3-2. −
EOM signal logic
The EOM signal will be ON once the
measurement is completed.
p. 83
3-5
HI, IN, and LO
signals are not
output.
Judgment results are
not displayed on the
instrument screen.
Conrm Q&A in 1-3. p. 117
11
Maintenance and Service