11-3
Section
LED Error Indicators
286
LED
Remedy
Cause
Error
R
U
N
Remedy
Cause
Error
U
Z
Y
X
D
A
T
A
S
E
N
S
E
R
H
E
R
C
f
F
f
F
F
F
F
F
F
CPU error
The CPU Unit has stopped
because the watchdog
timer turned ON.
Check that the Backplane,
CPU Unit, and PCU are all
mounted securely, and
reset the power supply.
If th
A CPU bus error has been
detected.
If the same error occurs
repeatedly, replace the
Backplane, CPU Unit, or
PCU.
The CPU Unit did not
perform END refresh
processing within the cyclic
service monitor time.
In the system settings for
the CPU Unit, check that
the END refresh has not
been disabled. If it has
been disabled, enable it,
and reset the power supply.
Increase the CPU Unit’s
cycle monitor time, and
reset the power supply
again.
Even if this error is
detected, it will not affect
PCU operation. Also, once
END refresh is enabled,
the ERH LED indicator will
turn OFF.
A fatal error occurred in the
CPU Unit.
Remove the cause of the
error at the CPU Unit.
Once the cause is
removed, normal status will
be restored, and the ERH
LED indicator will turn OFF.
f
f
F
l
l
l
F
F
F
Parameters
destruction
When using the axis
parameters saved in the
PCU, the parameters saved
in flash memory have been
lost. It is possible that,
while saving to flash
memory, the PCU’s power
supply was interrupted,
there was noise, or there
was an error in flash
memory.
In this condition, only the
data transfer (read and
write) and data save
operations can be
performed. The PCU’s axis
parameters and data are all
returned to their default
values. After transferring
the parameters again for all
axes, save the parameters
and either reset the power
C
f
f
F
l
l
F
F
F
F
Data destruction
The following data saved in
flash memory has been
lost: Zones, positioning
sequences, speeds,
acceleration/deceleration
times, positions, dwell
times.
It is possible that, while
saving to flash memory, the
PCU’s power supply was
interrupted, there was
noise, or there was an error
in flash memory.
p
supply or restart the PCU.
If the error persists, replace
the PCU.
Summary of Contents for CS1W-NC113 - REV 02-2008
Page 1: ...CS1W NC113 213 413 133 233 433 Position Control Units ...
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