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VM-5011A Instruction Manuals
(TVE-6-4188E / Version 1.20)
11. Maintenance and Troubleshooting
11-1. Maintenance
Check the following items when performing maintenance and inspection.
(1) Maintenance of Converter
(a) Is the screw at the connector terminal where cable is connected loose?
(b) Is the connected cable damaged?
(c) Is the power supply as specified (whether POWER lamp is on)?
(d) Is there any abnormal heat generation while the power is on?
(2) Maintenance of Sensor
(a) Is sensor installed loosely (is it securely installed)?
(b) Is sensor or sensor cable damaged?
(c) Is there a problem with the grounding of measurement target device to which
sensor is attached?
11-2. Troubleshooting
If you feel any malfunction or abnormality, please check the following before
requesting repair or replacement. If the problem persists even after checking the
following, please contact the purchasing agent or us.
Status
Cause
Treatment
POWER lamp does not
light.
Power is not being supplied.
Please supply power.
Cable connection is not made, or
cable connection is incorrect.
Make sure to connect them securely.
The supply power supply voltage is
out of the specification range.
Check the power supply
specifications.
Sensor does not connect.
Please connect sensor.
Sensor cable is disconnection.
Replace sensor cable.
Output of DC4-20mA does
not change from 2mA.
Sensor cable is unconnected or
disconnected.
Connect sensor cable correctly.
Vibration measurements
are very small (large).
Sensor is installed in the wrong
detection direction.
Reinstall in the correct detection
direction.
Vibration is small (large).
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①
Vibration measurements
are very unstable.
②
Suddenly, vibration
measurement became
extremely large (small).
Sensor is not securely fixed.
Please fix it securely.
There is a poor contact in cable
connection part of converter.
Please connect it securely.
Sensor is out of order.
If you own sensors with the same
specifications, replace sensors and
check if the phenomenon is
reproduced or replaced.
Converter is out of order.
If you own converters with the same
specifications, replace converters and
check if the phenomenon is
reproduced or replaced.
Vibration is unstable or large (small).
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