Omron 3F88L-160 - Page 190

5-10
Problem Possible solutionProbable cause
Cam outputs are strange.
A new cam program has been
input without clearing the existing
cam program.
Check the cam program.
When using the advance angle
compensation function, a cam
program containing changing cam
outputs has been input near the
advance angle compensation
position/the position where the
advance angle will be
compensated (during acceleration,
cam outputs may be missed or
output twice).
Set advance angle compensation
value 3 (advance angle
compensation position) to a
section where the cam outputs do
not change.
Do not use cam outputs during
acceleration as operation signals.
When using the copy function,
data has been mistakenly copied
from another Cam Positioner
when reading data from that Cam
Positioner.
Check the parameters and cam
programs of the source Cam
Positioner and then perform the
copy operation.
When using the copy function,
data has been mistakenly written
to another Cam Positioner when
reading data from that Cam
Positioner.
Set the parameters for the source
Cam Positioner, and, once all cam
programs have been re-input,
perform the copy operation.
Program memory error. Replace the Cam Positioner.
Exiting of a cam program that
shouldn’t be there (CAM17 to 32).
When copying a cam program
from a 3F88L-160 Cam Positioner
to a 3F88L-162 Cam Positioner, a
cam program containing CAM17
to 32 has been input to the
3F88L-160 Cam Positioner (when
a cam program has been copied
to the 3F88L-160 from a
3F88L-162 beforehand.)
Check the cam program and
delete any unnecessary cam
programs.
Origin compensation has been
performed but the origin does not
An origin compensation value has
been set.
Check the origin compensation
value.
pe o ed bu e o g does o
return to 0.
The Resolver is rotating. Check the machinery operation.
Circuit error. Replace the Cam Positioner.
The origin position is displaced.
A TRIG signal has been input. Check the connection wiring.
gp p
The present angle is displaced.
The coupling is displaced. Check the Resolver coupling.
The present angle is displaced.
The temperature variation is great. Check the ambient temperature
variation.
The Resolver cable is corrupted
and shorted with the frame ground
(FG).
Check the Resolver cable.
Circuit error. Replace the Cam Positioner.
The operation keys do not work.
The functions are limited by the
function level selection.
Check and, if necessary, adjust
the function level selection
(Function No. U) and turn OFF the
power and then turn it ON again.
Circuit error. Replace the Cam Positioner.
Operation Chapter 5