Maeda MC815C, Руководство по обслуживанию, Страница: 356 / 378

T-410
E-2 [Monitor frozen and inoperable]
Content Screen on the monitor remains frozen and cannot be operated.
Assumed cause
and action to be
taken
Cause Diagnostic method and action to be taken
1
Processing capacity
insufficient
• Turn the key OFF to check if screen disappears
• If the screen remains displayed even when the key is turned
OFF, shut down the power supply by using the disconnect
switch, or by pulling off the connector (DSPLAY) from the
monitor
2 Software error
• When the phenomenon appears frequently, a software error
may have occurred, so update to the most recent software
version
(The internal fault prevents the diagnosis to be executed.)
3 Monitor fault
• When the phenomenon appears frequently even if the
software has been updated, a monitor fault is likely
(The internal fault prevents the diagnosis to be executed.)
E-3 [Monitor switches inoperable (except for being frozen)]
Content
While monitor screen is displayed, switch operating function is disabled or inoperable (except for
being frozen).
Assumed cause
and action to be
taken
Cause Diagnostic method and action to be taken
1
Processing capacity
insufficient
• Turn off the key once and restart it to check the operability.
2 Software error
• If the phenomenon appears again after the system is
restarted, a software error may have occurred, so update it to
the newest version
(The internal fault prevents the diagnosis to be executed.)
2
Monitor fault
(Switch fault) • If the phenomenon appears again after the system is
restarted, a switch fault or monitor fault should be suspected.
[Additional information]
Note on disassembling the monitor:
• Since there is likelihood that performance of the monitor will fail to be rendered, do not disassemble.
E-4 [Moment limiter indication values on monitor are questionable]
When an error code of any sensors is displayed, prioritize the diagnosis and countermeasures for it.
Content Moment limiter indication values on monitor are questionable (no error of sensors shown).
Assumed cause
and action to be
taken
Cause Diagnostic method and action to be taken
1
Processing capacity
insufficient
• Turn the key to OFF and restart to check
2 Operation fault (software)
• When no abnormality is found in the sensors, a software
malfunction is likely, so update the software to the newest
version
(The internal fault prevents the diagnosis to be executed.)
3
Operation fault (of main
body)
• If the phenomenon appears even after the software has been
rewritten, it is likely that there is a fault with the controller
(TTC36X) which functions as the operational unit
(The internal fault prevents the diagnosis to be executed.)
[Additional information]
Note on calibration data of the moment limiter:
• Calibrated data are basically retained even if software is rewritten, so re-calibration is not required.
(However, re-calibration may be required depending on the details of the software.)