Troubleshooting - Sony Magnescale LH51 Instruction Manual

9. Troubleshooting

When the unit does not work properly, check the following before calling Sony Precision
Technology Inc. Representative for service.
The power cannot be turned on.
(Unstable power connection)
is displayed.
(Alarm)
is displayed.
(Alarm)
No counting
Erroneous counting
Accuracy cannot be obtained
Cleaning
To clean the display and casing:
Use dry cotton cloth
Ø
ABS INC
ABS INC Ø
ABS INC Ø
ON
POWER OFF
• Turn off the power switch and turn it on 1 to 2 minutes later.
• Check the connection and continuity of the power cable.
• Check for the proper range of power voltage.
• Check the connection and continuity of the power cable.
• Check for high level noises.
(Replace with a normal axis.)
• Turn off the power switch and turn it on 3 seconds later.
• Perform resetting operation.
• Check the scale signal connector is secured by screws.
• Check the conduit cable is not damaged or disconnected.
• Check to see if the scale has moved faster than the maximum response speed.
• Check for any severe vibration.
• Check for high level noises.
(Replace with a normal axis.)
• Turn off the power switch and turn it on 3 seconds later.
• Perform resetting operation.
• If you are using the LH52 with two axes and an error occurs for the Z-axis, the
display settings have not been made properly. Make the correct settings as
instructed in section 5-1-17.
• Turn off the power switch and turn it on 3 seconds later.
• Check to see if the scale signal connector is loosely coupled.
(Replace with a normal axis.)
• Turn off the power switch and turn it on 3 seconds later.
• Check to see if the scale signal connector is loosely coupled.
• Check for poor grounding due to rust or breakage.
• Check the power voltage is in the specified range.
(To keep power voltage within the specified range, use an automatic AC
voltage regulator.)
• Check that the grounding is made correctly.
• Check to see if the unit occasionally miscounts.
• Check for any mechanical trouble that may affect accuracy.
(Any trouble due to machine adjustment, deflection or play).
• Check to see if the temperature difference between the scale, machine and
workpiece is great.
BH/ARC REF L/H
RESET
SET START
F
S
L H
X
7 8 9 P
RESET
C L
Y 4 5 6
1 2 3
RESET
Z
0
inch mm
LH51
To remove heavy dirt:
Use diluted neutral detergent Do not use
67