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M A S C H I N E N - G E R M A N Y
Troubleshooting
15.6.11
Page 41
Troubleshooting Digital position display DPA 2000/ DPA 2000S ; Version 2.1.2
©
201
1
GB
Position display
miscounting, dis-
played distance
does not agree with
the actual distance.
1. Make sure that the machine tool
and the position display cover are
well grounded.
2. Bad precision of the machine
tool equipment.
3. Exceeding operation speed of
the machine tool equipment.
4. Mounting precision of the
reading device does not corres-
pond to requirement.
5. Position display resolution does
not correspond to the resoltion of
the reading device.
6. Operating measures do not
match metric/inch display.
7. Unsuitable setting of the posi-
tion display, linear error compensa-
tion.
8. Reading device exceeds the
length range, which is causing
damage to the reading head.
9. Screws fixing the reading head
or the reading device bed become
loose.
1. The machine tool and the position dis-
play cover must be well grounded.
2. Check and repair machine tool equip-
ment.
3. Reduce the operation speed of the
machine tool equipment.
4. Remount the reading device according
to the requirement.
5. Reset the position display resolution.
6. Convert metric/inch display.
7. Reset the position display linear error
compensation.
8. Adjust the machine tool or the reading
device, repair or replace the reading
device.
9. Retighten all the fixing screws.
Reading device
does not count or
sometimes does
not count
1. Reading device exceeds the
length range, which is causing
damage to the reading head.
2. There is accumulated dirt inside
the reading device.
3.Short circuit or open circuit inside
the reading device.
1. Adjust the machine tool or the reading
device, repair or replace the reading
device.
2. Repair the reading device and improve
ambient conditions.
3. Repair the reading device.
Weak shielding per-
formance of the
position display
1. Make sure that the machine tool
and the position display cover are
well grounded.
2. Make sure that the shielding
wire between the reading device
and the metal cover is well con-
nected.
1. The machine tool and the position dis-
play cover must be well grounded.
2. Reconnect the shielding wire to the
reading device.
