5.3 Troubleshooting
The following troubleshootings are just the preliminary methods. If the
problems still exist, please do not dismantle the DRO by yourself, but
contact our company or the dealers for help in time.
Faults
Fault Causes
Solutions
The DRO doesn’t
display anything
1. The power is not on ?
2. The power switch is not closed ?
3. The supply voltage is not
appropriate
4. The internal supply of the grating
ruler is in short circuit.
1. Check whether the power line
and power plug are plugged in.
2. Close the power switch.
3. Make sure the supply voltage
between 80V-260V.
4. Pull out the connector of the
grating ruler.
One axis of the
DRO doesn’t count
1. Operate the machine after swapping
with the grating ruler of another axis.
2. Some special functions of the DRO
are being used.
1. If counting, it’s the fault of
the grating ruler; if not, it’s
the fault of the DRO.
2. Exit the special function
The counting of DRO is
not accurate (it can’t
zero)
1. The grating ruler isn’t installed
according to the requirements or the
accuracy is not enough.
2. After being used for a long time, the
vibration of the machine tool makes
the fixed reading head or the screws
loosen.
3. The accuracy of the machine tool is
not good.
4. The DRO resolution isn’t consistent
with the grating ruler.
1. Reinstall the grating ruler and
adjust the level.
2. Tighten all the fixed screws.
3. Overhaul the machine tool.
4. Reset the DRO resolution.
The counting of DRO
is in error,The
displayed operation
distance isn’t
consistent with the
actual distance
1. The machine tool and the DRO shell
are not connected to earth.
2. The accuracy of the machine tool is
not good.
3. The running speed of the machine
tool is too fast.
4. The grating ruler isn’t installed
according to the requirements and the
accuracy is not enough.
5. The DRO resolution isn’t consistent
with the grating ruler.
6. The operating size unit is not
consistent with the displayed
Metric/British units.
7. The linear error compensation setting
of the DRO is not appropriate.
8. The grating ruler exceeds the
operating range of length or the read
head is broken.
1. Connect the machine tool and
the DRO shell to earth.
2. Overhaul the machine tool.
3. Reduce the running speed of
the machine tool.
4. Reinstall the grating ruler and
adjust the level.
5. Reset the DRO resolution.
6. Switch the displayed
Metric/British units.
7. Reset the linear error
compensation of the DRO.
8. Repair the grating ruler.
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Appendix
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