SMC Networks LECSN-T Series User Manual

8. TROUBLESHOOTING
8 - 18
Alarm No.: 15
Name: Memory error 2 (EEP-ROM)
Alarm content
A part (EEP-ROM) in the driver is failure.
Detail
No.
Detail name
Cause
Check method
Check result
Action
15.1
EEP-ROM error
at power on
(1)
EEP-ROM is
malfunctioning at power
on.
Disconnect the cables
except for the control
circuit power supply,
and then check the
repeatability.
It is repeatable.
Replace the driver.
It is not repeatable.
Check (2).
(2)
Something near the
device caused it.
Check the power
supply for noise. Check
if the connector is
shorted
There is a problem in
the surrounding.
Take countermeasures
against its cause.
There is no problem
in the surrounding.
Check (3).
(3)
The number of write
times exceeded
100,000.
Check if parameters,
point tables, or
programs
are changed very
frequently.
It was changed.
Replace the driver. Change
the process to use
parameters, point tables, and
programs less frequently
after replacement.
15.2
EEP-ROM error
During
operation
(1)
EEP-ROM is
malfunctioning during
normal operation.
Check if the error
occurs
when you change
parameters during
normal operation.
It occurs.
Replace the driver.
It does not occur.
Check (3).
(2)
A write error occurred
while adjustment results
were processed.
Check if the alarm
occurs after an hour
from power on.
It takes an hour or
more
Replace the driver.
It takes less than an
hour.
Check (4).
(3)
Something near the
device caused it.
Check the power
supply
for noise. Check if the
connector is shorted.
There is a problem in
the surrounding.
Take countermeasures
against its cause.
15.4
Home position
information
read error
(1)
EEP-ROM is
malfunctioning at power
on.
Disconnect the cables
except for the control
circuit power supply,
and then check the
repeatability.
It is repeatable.
Replace the driver.
It is not repeatable.
Check (2).
(2)
Multiple rotation data
saved as a home
position and read from
EEP-ROM were failure.
Check if the home
position was set
correctly.
It is repeatable.
Replace the driver.
It is not repeatable.
Check (3).
(3)
Something near the
device caused it.
Check the power
supply for noise. Check
if the connector is
shorted.
There is a problem in
the surrounding.
Take countermeasures
against its cause.
There is no problem
in the surrounding.
Check (4).
(4)
The number of write
times exceeded
100,000.
Check if parameters
has been used very
frequently.
It was changed.
Replace the driver. Change
the process to use
parameters less frequently
after replacement.

SMC Networks LECSN-T Series Specifications

General

Brand	SMC Networks
Model	LECSN-T Series
Category	Controller
Language	English